Schedule 13d

Filed by: NIERENBERG INVESTMENT MANAGEMENT COMPANY, INC.
Subject Company: ELECTRO SCIENTIFIC INDUSTRIES, INC.
Filed as of Date: 10/07/2008
View Original Filing on Edgar's
0001169232-08-003611.txt : 20081007
<SEC-HEADER>0001169232-08-003611.hdr.sgml : 20081007
<ACCEPTANCE-DATETIME>20081007060105
ACCESSION NUMBER:		0001169232-08-003611
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20081007
DATE AS OF CHANGE:		20081007
GROUP MEMBERS:		DAVID NIERENBERG
GROUP MEMBERS:		THE D3 FAMILY BULLDOG FUND, L.P.
GROUP MEMBERS:		THE D3 FAMILY CANADIAN FUND, L.P.
GROUP MEMBERS:		THE D3 FAMILY FUND, L.P.
GROUP MEMBERS:		THE DIII OFFSHORE FUND, L.P.
GROUP MEMBERS:		THE NIERENBERG INVESTMENT MANAGEMENT OFFSHORE, INC.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ELECTRO SCIENTIFIC INDUSTRIES INC
		CENTRAL INDEX KEY:			0000726514
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		IRS NUMBER:				930370304
		STATE OF INCORPORATION:			OR
		FISCAL YEAR END:			0531

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-34524
		FILM NUMBER:		081111117

	BUSINESS ADDRESS:	
		STREET 1:		13900 NW SCIENCE PARK DR
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97229
		BUSINESS PHONE:		5036414141

	MAIL ADDRESS:	
		STREET 1:		13900 NW SCIENCE PARK DRIVE
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97229-5497

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NIERENBERG INVESTMENT MANAGEMENT CO
		CENTRAL INDEX KEY:			0001282683
		IRS NUMBER:				911677205

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	MAIL ADDRESS:	
		STREET 1:		19605 NE 8TH ST
		CITY:			CAMAS
		STATE:			WA
		ZIP:			98607
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>d75077_sc13da.txt
<DESCRIPTION>AMENDMENT NO. 11
<TEXT>

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13D
                    Under the Securities Exchange Act of 1934
                               (Amendment No. 11)


                    ELECTRO SCIENTIFIC INDUSTRIES INC. (ESIO)
- --------------------------------------------------------------------------------
                                (Name of Issuer)

- --------------------------------------------------------------------------------
                                  Common Stock
                         (Title of Class of Securities)

                                    285229100
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                                David Nierenberg
                               The D3 Family Funds
                               19605 NE 8th Street
                                 Camas, WA 98607
                                 (360) 604-8600
- --------------------------------------------------------------------------------

                                 With a copy to:

                               Henry Lesser, Esq.
                                DLA Piper US LLP
                             2000 University Avenue
                            East Palo Alto, CA 94303
                                 (650) 833-2000

                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

- --------------------------------------------------------------------------------
                                 October 6, 2008
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D and is filing this
schedule because of ss.ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the
following box [ ].

<PAGE>

- --------------------------------------------------------------------------------

             NAME OF REPORTING PERSONS
             I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

     1       The D3 Family Fund, L.P.

- --------------------------------------------------------------------------------

             CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
             (a)      [X]
     2       (b)      [ ]

- --------------------------------------------------------------------------------
     3        SEC USE ONLY


- --------------------------------------------------------------------------------

     4        SOURCE OF FUNDS (See Instructions)
              WC
- --------------------------------------------------------------------------------

     5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
              TO ITEMS 2(d) or 2(e) [   ]
- --------------------------------------------------------------------------------

              CITIZENSHIP OR PLACE OF ORGANIZATION
     6        Washington
- --------------------------------------------------------------------------------

     NUMBER OF SHARES           7      SOLE VOTING POWER
       BENEFICIALLY                    0
                            ----------------------------------------------------
         OWNED BY
           EACH                        SHARED VOTING POWER
        REPORTING               8      598,762 Common shares (2.2%)
                            ----------------------------------------------------

          PERSON                9      SOLE DISPOSITIVE POWER

           WITH                        0
                            ----------------------------------------------------

                               10      SHARED DISPOSITIVE POWER
                                       598,762
- --------------------------------------------------------------------------------
     11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
              For the reporting person listed on this page, 598,762; for all
              reporting persons as a group, 4,060,127 shares (15.0%)*

- --------------------------------------------------------------------------------
     12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
              SHARES (See Instructions) [ ]

- --------------------------------------------------------------------------------
              PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     13       15.0%*

- --------------------------------------------------------------------------------
     14       TYPE OF REPORTING PERSON (See Instructions)
              PN
- --------------------------------------------------------------------------------

*See Item 5 of this Amendment

                                       2

<PAGE>

- --------------------------------------------------------------------------------
     1       NAME OF REPORTING PERSONS

             I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

             The D3 Family Bulldog Fund, L.P.

- --------------------------------------------------------------------------------

             CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
             (a)      [X]
     2       (b)      [ ]

- --------------------------------------------------------------------------------
     3        SEC USE ONLY


- --------------------------------------------------------------------------------

     4        SOURCE OF FUNDS (See Instructions)
              WC
- --------------------------------------------------------------------------------

     5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
              TO ITEMS 2(d) or 2(e) [   ]
- --------------------------------------------------------------------------------

              CITIZENSHIP OR PLACE OF ORGANIZATION
     6        Washington
- --------------------------------------------------------------------------------

     NUMBER OF SHARES           7      SOLE VOTING POWER
       BENEFICIALLY                    0
                            ----------------------------------------------------
         OWNED BY
           EACH                        SHARED VOTING POWER
        REPORTING               8      2,414,476 common shares (8.9%)
                            ----------------------------------------------------

          PERSON                9      SOLE DISPOSITIVE POWER

           WITH                        0
                            ----------------------------------------------------

                               10      SHARED DISPOSITIVE POWER
                                       2,414,476
- --------------------------------------------------------------------------------
     11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
              For the reporting person listed on this page, 2,414,476; for all
              reporting persons as a group, 4,060,127 shares (15.0%)*

- --------------------------------------------------------------------------------
     12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
              SHARES (See Instructions)  [ ]
- --------------------------------------------------------------------------------
              PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     13       15.0%*
- --------------------------------------------------------------------------------
     14       TYPE OF REPORTING PERSON
              PN
- --------------------------------------------------------------------------------

*See Item 5 of this Amendment


                                       3

<PAGE>

- --------------------------------------------------------------------------------
     1       NAME OF REPORTING PERSONS

             I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

             The D3 Family Canadian Fund, L.P.

- --------------------------------------------------------------------------------

             CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
             (c)      [X]
     2       (d)      [ ]

- --------------------------------------------------------------------------------
     3       SEC USE ONLY


- --------------------------------------------------------------------------------

     4       SOURCE OF FUNDS (See Instructions)
             WC
- --------------------------------------------------------------------------------


     5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
             TO ITEMS 2(d) or 2(e) [   ]
- --------------------------------------------------------------------------------

              CITIZENSHIP OR PLACE OF ORGANIZATION
     6        Washington
- --------------------------------------------------------------------------------

     NUMBER OF SHARES           7      SOLE VOTING POWER
       BENEFICIALLY                    0
                            ----------------------------------------------------
         OWNED BY
           EACH                        SHARED VOTING POWER
        REPORTING               8      232,475 common shares (0.9%)
                            ----------------------------------------------------

          PERSON                9      SOLE DISPOSITIVE POWER

           WITH                        0
                            ----------------------------------------------------

                               10      SHARED DISPOSITIVE POWER
                                       232,475
- --------------------------- ----------------------------------------------------
     11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
              For the reporting person listed on this page, 232,475 shares; for
              all reporting persons as a group, 4,060,127 shares (15.0%)*

- --------------------------------------------------------------------------------
     12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
              SHARES (See Instructions) [ ]
- --------------------------------------------------------------------------------
              PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     13       15.0%*
- --------------------------------------------------------------------------------
     14       TYPE OF REPORTING PERSON
              PN
- --------------------------------------------------------------------------------

*See Item 5 of this Amendment


                                       4

<PAGE>

- --------------------------------------------------------------------------------
     1       NAME OF REPORTING PERSONS

             I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

             The DIII Offshore Fund, L.P.
- --------------------------------------------------------------------------------

             CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
             (a)      [X]
     2       (b)      [  ]

- --------------------------------------------------------------------------------
     3       SEC USE ONLY


- --------------------------------------------------------------------------------

     4       SOURCE OF FUNDS (See Instructions)
             WC
- --------------------------------------------------------------------------------


     5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
             TO ITEMS 2(d) or 2(e) [   ]
- --------------------------------------------------------------------------------

              CITIZENSHIP OR PLACE OF ORGANIZATION
     6        Bahamas
- --------------------------------------------------------------------------------

     NUMBER OF SHARES           7      SOLE VOTING POWER
       BENEFICIALLY                    0
                            ----------------------------------------------------
         OWNED BY
           EACH                        SHARED VOTING POWER
        REPORTING               8      814,414 common shares (3.0%)
                            ----------------------------------------------------

          PERSON                9      SOLE DISPOSITIVE POWER

           WITH                        0
                            ----------------------------------------------------

                               10      SHARED DISPOSITIVE POWER
                                       814,414
- --------------------------------------------------------------------------------
     11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
              For the reporting person listed on this page, 814,414; for all
              reporting persons as a group, 4,060,127 shares (15.0%)*
- --------------------------------------------------------------------------------
     12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
              SHARES (See Instructions) [ ]
- --------------------------------------------------------------------------------
              PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     13       15.0%*
- --------------------------------------------------------------------------------
     14       TYPE OF REPORTING PERSON
              PN
- --------------------------------------------------------------------------------

*See Item 5 of this Amendment


                                       5

<PAGE>


- --------------------------------------------------------------------------------
     1       NAME OF REPORTING PERSONS

             I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

             Nierenberg Investment Management Company, Inc.

- --------------------------------------------------------------------------------

             CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
             (a)      [X]
     2       (b)      [ ]

- --------------------------------------------------------------------------------
     3        SEC USE ONLY


- --------------------------------------------------------------------------------

     4        SOURCE OF FUNDS (See Instructions)
              AF
- --------------------------------------------------------------------------------

     5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
              TO ITEMS 2(d) or 2(e) [   ]
- --------------------------------------------------------------------------------

              CITIZENSHIP OR PLACE OF ORGANIZATION
     6        Washington
- -------------------------------------------------------------------------------

     NUMBER OF SHARES           7      SOLE VOTING POWER
       BENEFICIALLY                    0
                            ----------------------------------------------------
         OWNED BY
           EACH                        SHARED VOTING POWER
        REPORTING               8      4,060,127 shares (15.0%)*
                            ----------------------------------------------------

          PERSON                9      SOLE DISPOSITIVE POWER

           WITH                        0
                            ----------------------------------------------------

                               10      SHARED DISPOSITIVE POWER
                                       4,060,127 shares
- --------------------------------------------------------------------------------
     11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
              For the reporting person listed on this page, 4,060,127; for all
              reporting persons as a group, 4,060,127 shares (15.0%)*
- --------------------------------------------------------------------------------
     12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
              SHARES (See Instructions) [ ]
- --------------------------------------------------------------------------------
              PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     13       15.0%*
- --------------------------------------------------------------------------------
     14       TYPE OF REPORTING PERSON
              CO
- --------------------------------------------------------------------------------

*See Item 5 of this Amendment


                                       6

<PAGE>

- --------------------------------------------------------------------------------
     1        NAME OF REPORTING PERSONS

              I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

              Nierenberg Investment Management Offshore, Inc.
- --------------------------------------------------------------------------------

             CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
              (a)      [X]
     2        (b)      [  ]
- --------------------------------------------------------------------------------
     3        SEC USE ONLY


- --------------------------------------------------------------------------------
     4        SOURCE OF FUNDS (See Instructions)
              AF
- --------------------------------------------------------------------------------

     5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
              TO ITEMS 2(d) or 2(e) [   ]
- --------------------------------------------------------------------------------

              CITIZENSHIP OR PLACE OF ORGANIZATION
     6        Bahamas
- --------------------------------------------------------------------------------

     NUMBER OF SHARES           7      SOLE VOTING POWER
       BENEFICIALLY                    0
                            ----------------------------------------------------
         OWNED BY
           EACH                        SHARED VOTING POWER
        REPORTING               8      814,414 common shares (3.0%)
                            ----------------------------------------------------

          PERSON                9      SOLE DISPOSITIVE POWER

           WITH                        0
                            ----------------------------------------------------

                               10      SHARED DISPOSITIVE POWER
                                       814,414 common shares
- --------------------------------------------------------------------------------
     11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
              For the reporting person listed on this page, 814,414 for all
              reporting persons as a group, 4,060,127 shares (15.0%)*
- --------------------------------------------------------------------------------
     12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
              SHARES (See Instructions) [ ]
- --------------------------------------------------------------------------------
              PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     13       15.0%*
- --------------------------------------------------------------------------------
     14       TYPE OF REPORTING PERSON
              CO
- --------------------------------------------------------------------------------

*See Item 5 of this Amendment


                                       7

<PAGE>

- --------------------------------------------------------------------------------
     1        NAME OF REPORTING PERSONS

              I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

              David Nierenberg
- --------------------------------------------------------------------------------

             CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
              (c)      [X]
     2        (d)      [  ]

- --------------------------------------------------------------------------------
    3        SEC USE ONLY


- --------------------------------------------------------------------------------
     4        SOURCE OF FUNDS (See Instructions)
              AF
- --------------------------------------------------------------------------------

     5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
              TO ITEMS 2(d) or 2(e) [   ]
- --------------------------------------------------------------------------------
              CITIZENSHIP OR PLACE OF ORGANIZATION
     6        United States of America
- --------------------------------------------------------------------------------

     NUMBER OF SHARES           7      SOLE VOTING POWER
       BENEFICIALLY                    0
                            ----------------------------------------------------
         OWNED BY
           EACH                        SHARED VOTING POWER
        REPORTING               8      4,060,127 shares (15.0%)*
                            ----------------------------------------------------

          PERSON                9      SOLE DISPOSITIVE POWER

           WITH                        0
                            ----------------------------------------------------

                               10      SHARED DISPOSITIVE POWER
                                       4,060,127 shares
- --------------------------------------------------------------------------------
     11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
              For the reporting person listed on this page, 4,060,127; for all
              reporting persons as a group, 4,060,127 shares (15.0%)*
- --------------------------------------------------------------------------------
     12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
              SHARES (See Instructions) [ ]
- --------------------------------------------------------------------------------
              PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     13       15.0%*
- --------------------------------------------------------------------------------
     14       TYPE OF REPORTING PERSON
              IN
- --------------------------------------------------------------------------------

*See Item 5 of this Amendment


                                       8
<PAGE>

         This Amendment No. 11 to Schedule 13D (this "Amendment") amends the
below-indicated items from the Schedule 13D previously filed by or on behalf of
the undersigned parties (the "Reporting Persons") (the "Schedule 13D"), by
supplementing such Items with the information below:

Item 4.  Purpose of Transaction

         The Reporting Persons are calling upon ESIO to commit to an immediate
and continuing substantial share repurchase program. The Reporting Persons have
also requested an exemption that would allow them to acquire up to 19.99% of
ESIO's shares, should they so choose, without triggering ESIO's shareholder
rights plan. These requests were made in a letter dated October 6, 2007 which
the Reporting Persons, through David Nierenberg, sent to ESIO's CEO Nick
Konidaris. The letter is attached to this filing and is incorporated by
reference herein.

         The statements by the Reporting Persons in the above-referenced letter
regarding their investment in ESIO represent solely their own analyses and
judgments, based on publicly-available information and their own internal
evaluation thereof. Those statements are not intended, and should not be relied
on, as investment advice to any other investor or prospective investor. To the
extent those statements reflect assessments of possible future developments,
those assessments are forward-looking statements that are inherently subject to
the uncertainties associated with all assessments of future events; actual
developments may materially differ as a result of circumstances affecting ESIO
and/or extrinsic factors such as developments in ESIO's industry and the
economic environment. The Reporting Persons reserve the right to change their
internal evaluation of this investment in the future, as well as to increase or
decrease their investment depending on their evaluation, and to discuss ESIO and
their investment in it with the directors and executive officers of ESIO and
third parties, without further amending the Schedule 13D except as required by
applicable rules.

Item 5.  Interest in Securities of the Issuer

         (a, b) The Reporting Persons, in the aggregate, beneficially own
4,060,127 common shares, constituting approximately 15.02% of the outstanding
shares.

         The last purchases of ESIO shares by any of the Reporting Persons were
on July 24, 2008. Based on what was then the most reason publicly-reported
number of ESIO shares outstanding (27,090,598 as of June 6, 2008, as set forth
in ESIO's June 11, 2008 Form 10-K for the transition period June 3, 2007 to
March 29, 2008), those purchases resulted in the Reporting Persons then
beneficially owning in the aggregate 14.99% of ESIO's outstanding common shares.
Subsequent to those last purchases of ESIO shares by the Reporting Persons, in
its August 5, 2008 Form 10-Q for the quarter ended June 28, 2008, ESIO reported
a reduced number of outstanding common shares as of July 31, 2008 (27,026,125).
For the purposes of this Amendment, the Reporting Persons have calculated their
aggregate percentage beneficial ownership (15.02%) based on that later lower
reported number.

Item 7.  Material to be filed as Exhibits

         Exhibit 1 to this Amendment is the letter referred to in response to
Item 4 of this Amendment.


                                       9
<PAGE>

                                    SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, each of the
undersigned certifies that the information set forth in the Statement is true,
complete and correct.

                                   D3 Family Fund, L.P., D3 Family Bulldog
                                   Fund, L.P., and D3 Family Canadian Fund, L.P.

                                   By: Nierenberg Investment Management
                                       Company, Inc.

                                   Its: General Partner

October 7, 2008                    By: /s/ David Nierenberg
- -------------------------              ----------------------------------------
                                               David Nierenberg, President

                                   DIII Offshore Fund, L.P.

                                   By: Nierenberg Investment Management
                                       Offshore, Inc.

                                   Its: General Partner

October 7, 2008                    By: /s/ David Nierenberg
- -------------------------              ----------------------------------------
                                               David Nierenberg, President

                                   Nierenberg Investment Management
                                   Company, Inc.

October 7, 2008                    By: /s/ David Nierenberg
- -------------------------              -----------------------------------------
                                       David Nierenberg, President

                                   Nierenberg Investment Management
                                   Offshore, Inc.

October 7, 2008                    By: /s/ David Nierenberg
- -------------------------              -----------------------------------------
                                           David Nierenberg, President

October 7, 2008                    /s/ David Nierenberg
- -------------------------          ---------------------------------------------
                                       David Nierenberg


                                       10
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>d75077_ex99-1.txt
<DESCRIPTION>LETTER
<TEXT>

Exhibit 1
                              THE D3 FAMILY FUNDS

October 6, 2008

Mr. Nick Konidaris, President and Chief Executive Officer
Electro Scientific Industries, Inc.
13900 NW Science Park Drive
Portland, OR 97229

Dear Nick,

ESI and the D3 Funds have enjoyed a productive  dialogue  about what we hope the
company  might do with its cash.  We are living in unusual  times:  the  current
volatility  in the stock market;  the anxieties  which cause it; the large share
repurchase programs announced by Microsoft, Nike, Hewlett-Packard,  and Sysco on
September  22; the  downturn  of several of your served  markets;  and the SEC's
temporary  relaxation  of share  repurchase  rule 10b-18 prompt us to resume our
discussion  with you and the Board of Directors  about the  company's  financial
strategy.

We believe that ESI has, and can generate,  sufficient  cash over the next three
years both to fund an aggressive share repurchase  program which would halve the
share count and to double the  company's  revenues  through  organic  growth and
acquisitions. We urge you and ESI's Board of Directors to commit to and commence
such a program  right now,  while the share price is weak.  We believe  that the
company has the financial strength to do this without incurring debt.

While we discuss in this letter a three year share repurchase  program,  we view
the next three  years as the  opening  phase of what we hope will become an even
longer term program by ESI to grow earnings per share (EPS) and increase  return
on invested  capital (ROIC) by managing three  variables,  rather than just two:
revenue growth,  costs, and capital structure..  Similar long term programs have
been used successfully to build shareholder value at Teledyne from 1972 to 1984,
and for decades at Loews  Corporation  and  Washington  Post.  At Teledyne,  for
example,  the company's  repurchases enabled it to increase EPS nearly six times
faster than net income.

Our  request is a strong  endorsement  of your  leadership  of ESI,  the Board's
governance  of the company,  ESI's strong market share  positions,  its fortress
balance sheet, and its long term growth prospects. We would not seek to own more
of ESI unless we believed strongly that it is an excellent company with a bright
future.

You and your management team have accomplished a great deal since you joined ESI
four years ago. You inherited an accounting mess which has been  rectified.  You
broke down the silos  separating  the company's  business units to stimulate the
sharing of core  technologies  and the development of new products.  You rebuilt
the senior management of the company.  You committed to make product development
customer  driven and you have fulfilled  that promise.  You sought to double the
company's  served  markets  from  $300M to  $600M  and you  have  achieved  that
objective, introducing high margin new products in all three of your businesses.


                                                                               1

Nierenberg Investment Management Company, Inc., 19605 NE 8th Street, Camas, WA
98607 (360)604-8600 Fax (360)604-1811
<PAGE>

You are developing growth opportunities organically,  such as wafer singulation,
and by acquisition and investment,  such as New Wave Research.  Therefore,  when
you commit,  as you recently did in the AEA  presentation on August 12, 2008, to
doubling   ESIO's   served  market  again  over  the  next  three  years  (  AEA
presentation,  slide 75),  your  accomplishments  certainly  entitle  you to the
benefit of the doubt.

It must be frustrating  to you and your  colleagues at ESI that your progress is
not reflected in the company's share price.

We believe  that  there is one more  thing  which ESI should do to round out its
accomplishments: use your current and future financial strength to launch a long
term program to boost the company's ROIC and EPS by halving the share count.  We
say "long term program" to distinguish it from  repurchases  which are episodic,
interrupted,  discontinuous,  and/or  small.  As the  three  examples  we  cited
demonstrate,  the most successful repurchase programs are large and they persist
over a long period of time. A long term program would improve  substantially the
two ratios of greatest importance to investors; smaller,  discontinuous programs
may not accomplish  much at all. They generally fail to demonstrate  serious and
sustainable   commitment.   Repurchasing   shares  is  like  going  on  a  diet;
fundamentally  changing  habits  works  better than fits and starts.  Most diets
fail, as do most repurchases---unless they are programmed to become a new habit,
which is what we are advocating here.

We believe  that the  correct way to assess the  company's  ability to halve the
share count resembles how you think about the company's  growth  strategy:  plan
over at least a three year  period of time.  The problem  with a momentary  snap
shot of ESI's balance sheet is that it omits real  opportunities for the company
to monetize  several  non-cash assets over time and the company's proven ability
to generate strong cash flow from operations  throughout the business cycle. The
latter,  in fact,  enabled ESI to  generate  nearly $23 million of cash per year
over  the  past  five  years  (slide  77 of the  AEA  presentation).  As we will
demonstrate in this letter,  looking only at the company's current cash balance,
which is all ESI showed in the AEA presentation and the May 22 New York Investor
Day  presentation,  leaves  out over  half the cash  which we  believe  could be
generated for repurchases and acquisitions during the next three years.

To flesh out our analysis,  we use the company's most recent Form 10-Q and 10-K,
your AEA  presentation,  and commentary  from the company's most recent earnings
call.  Our  numbers  are  based  on  data  from  ESI in the  public  domain  and
assumptions we have made based on your data.

For the quarter ending June 28, 2008 ESI showed cash and current  investments of
$138.365 million. (Form 10-Q)

For the quarter ending June 28, 2008 ESI had non-current  investments of $16.605
million,  of which  $14.506  million was in the form of Auction Rate  Securities
(ARS) at estimated fair value after a $5.1 million  impairment  charge. The rest
was unimpaired  investments  with a maturity longer than one year. While neither
of these investments would be liquid immediately without a haircut, over a three
year planning horizon we assume that ESI can recover $16.605M of cash.  (Perhaps
you might recover more.) (Form 10-Q, footnote 5)


                                                                               2

Nierenberg Investment Management Company, Inc., 19605 NE 8th Street, Camas, WA
98607 (360)604-8600 Fax (360)604-1811


<PAGE>

For the  quarter  ending  June 28, 2008 "other  assets"  were  $38.097  million,
including  $9.719  million  for the  All-Ring  patent suit court bond in Taiwan.
(Form 10-Q, footnote 7) From our recent conversations with ESI's CFO, we believe
that  during the next three  years ESI should be able to  monetize  that  $9.719
million, by replacing the cash escrow with a letter of credit.

For the quarter ending June 28, 2008 ESI showed  property,  plant and equipment,
net of depreciation, of $47.610 million. (Form 10-Q) Of this, $42.648 million is
land and buildings at historical cost, less depreciation of the buildings, owned
free and clear. (Form 10-K, footnote 8) In its recent presentations and earnings
calls,  ESI  management  has  mentioned  the  company's  progress   transferring
manufacturing to a contract  manufacturer in Singapore.  In fact, management has
articulated  the goal of outsourcing  over half of  manufacturing  over the next
three  years.  Moreover,  ESI is locating a growing  portion of its  engineering
staff in locations  other than  Portland.  While it is  impossible  for us, from
outside the  company,  to be precise or accurate  about how much excess land and
buildings  ESI may own today or in the  future,  we know that the  company  will
assess  regularly how large a real estate  "footprint"  it needs as it continues
transferring  manufacturing and engineering to other locations. While we are not
urging the company to monetize all real  estate,  or to sell now, we do advocate
monetizing  excess land and buildings over the next three years.  In the absence
of a specific number from ESI, we guesstimate that the company could generate at
least $20 million here.

Now we will shift the spotlight from the balance sheet to three year revenue and
operating  cash flow growth,  as the company seeks to double its served  markets
(AEA  slide  75) and as the  semiconductor  and  electronics  capital  equipment
industries  ultimately  climb out of their  trough.  Today  ESI's  revenues  are
approximately  one-third of its served market: $220 million out of $650 million.
Assuming  that ESI's  revenues  remain  approximately  30-35% of a served market
which you  project  could grow to $1.3  billion in three  years,  ESI would grow
revenues to $400 million in 2011. (If this feels aggressive, allow more time. It
doesn't alter our point.)

ESI has on many  occasions  publicly  endorsed  a  business  model of 50%  gross
margins,  30% below the line costs,  and a 20% operating  margin (AEA slide 76),
once the company reached a $90 million  quarterly  revenue run rate.  Therefore,
when you reach the $400  million  run rate,  ESI should  generate  approximately
$53.5  million in annual  profit after tax (13% after tax return on sales,  plus
$1.5 million of after-tax interest income).

Obviously we cannot  forecast when this might  happen.  But for the purpose of a
three or four year  illustration,  we modeled that after tax profits would reach
$53.5 million linearly over a three year period,  climbing from zero this fiscal
year, to $17.8 million in fiscal 2010 (mostly  calendar 2009),  $35.7 million in
fiscal  2011,  and $53.5  million in fiscal  2012.  Total  profits over the four
fiscal  years  would be $107  million,  a  number  which  is in line  with  your
operating  cash flows over the past five years,  even though ESI is projected to
double in size from today.

To estimate ESI's operating cash flow from fiscal 2009-2012 we also must project
depreciation,  capital  expenditures,  inventories and receivables.  To simplify
this exercise,  however, we will assume that ESI's annual  depreciation  expense
should roughly equal capital  expenditures.  This feels  reasonable  because the
company recently completed a major investment in information systems and because
the company  probably has, or soon will have,  excess real estate.  ESI's recent
inventory  turns  ratio has been about 1.5 times.  Over the next three years the
CFO hopes to double


                                                                               3

Nierenberg Investment Management Company, Inc., 19605 NE 8th Street, Camas, WA
98607 (360)604-8600 Fax (360)604-1811
<PAGE>

turns to 3 times. Given ESI's current high inventory levels,
given that ESI's contract  manufacturer will hold a growing portion of inventory
on its balance sheet rather than ESI's, this goal sounds achievable to us. Thus,
if the company doubles revenues over the next three years, it should not need to
increase its  aggregate  investment  in inventory.  Finally,  if ESI  maintained
accounts  receivable  at 70 days,  (where it was on June 28,  2008,  using  form
10-Q), keeping receivables in line with revenues would require $18 million.

Finally,  we will  assume  that over the next  three  years ESI  executives  and
employees will continue to exercise their vested stock options. While nobody can
forecast  precisely  when this might  happen,  or how much cash these  exercises
might  generate,  a  conservative  number for cash which might be generated from
this might be $15 million.

Let's combine all of the current and projected cash sources in one table:

<TABLE>
<CAPTION>

Source of cash:                                                              Amount (in millions of dollars)
- ---------------                                                              -------------------------------
<S>                                                                                                    <C>
Current cash and short term investments, 6/28/08                                                       138.3
Non-current investments, 6/28/08                                                                        16.6
All-Ring court bond, 6/28/08                                                                             9.7
Excess company owned real estate, next three years                                                      20.0
Estimated accumulated after-tax profits, FY 2009-2012                                                  107.0
Estimated accumulated depreciation and cap ex, FY 2009-2012                                                0
Estimated additional inventory investment, FY 2009-2012                                                    0
Estimated additional receivables investment, FY 2009-2012                                             (18.0)
Estimated cash from options exercises, FY 2009-2012                                                     15.0
</TABLE>

                  TOTAL CURRENT AND THREE YEAR CASH:  $288.6 million

This combination of a snap shot and a dynamic three year perspective, consistent
with your market development planning horizon, produces a very large sum of free
cash,  which is more than double ESI's  current cash and short term  investments
and more than 70% of the company's current market capitalization.

To us,  therefore,  it seems  unfortunate  that the  scope  and  purpose  of the
company's  current  share  repurchasing  is limited to  offsetting  the dilutive
effects of stock  options and  restricted  stock  issuance.  With this much cash
today,  and so much more to come,  ESI could  halve its share  count while still
retaining  sufficient  free cash to make two more  acquisitions  the size of New
Wave Research, without using debt and while retaining over half its current real
estate.

If, hypothetically, ESI were to repurchase 14 million shares at an average price
of $16 over the next several  years,  this program  would  require $224 million,
leaving almost $65 million for possible acquisitions and other corporate uses.

This is what we  recommend  that the Board of ESI  commit to doing and  commence
right away. We do not recommend that you establish  another 10b5-1 program,  nor
do we recommend a Dutch Auction.  We request a multi-year program of using cash,
monetizable assets, and free cash flow from future operations to halve the share
count. Now is the time to begin putting larger amounts of cash to work.


                                                                               4

Nierenberg Investment Management Company, Inc., 19605 NE 8th Street, Camas, WA
98607 (360)604-8600 Fax (360)604-1811
<PAGE>

Let's  think  about what this could mean for ESI's long term  shareholders,  who
have patiently endured stock market neglect and ESI's  unacceptably low ROIC: If
three or four years from now ESI were to generate  $400  million in revenues and
$53.5  million of fully taxed  profits on a fully diluted share count of only 14
million,  earnings  per share would rise from  break-even  today to $3.82.  And,
depending on the prices paid to repurchase  shares,  the company would grow ROIC
into double  digit  territory.  Assuming a typical  market  multiple of 15 times
earnings,  ESI's share price would  roughly  quadruple to $57.32.  Assuming a 20
multiple, which could result from a three or four year run of rapidly increasing
EPS and ROIC,  ESI's share  price  could rise to $76.40,  five times where it is
today.  We believe that all other  possible  uses of cash should be  benchmarked
against these scenarios. ESI is fortunate that its acquisition of NWR appears to
be successful. But all of us know that acquisitions are inherently risky. It may
be better to buy more of what you already know--your own shares--than  incurring
the risks of buying  other  things  which  you  cannot  know as well as you know
yourself.  We are not opposed to smart  acquisitions like NWR. We certainly want
ESI to grow.

In closing,  we would like to raise a separate but related point:  the amendment
to ESI's  shareholder  rights  agreement  which the company  disclosed in August
pointed  out that for six years  Third  Avenue has been  permitted  to own up to
19.99% of ESI's shares without triggering the poison pill. Given our lengthy and
positive record as a shareholder of the company,  we would  appreciate the Board
affording us the same status as Third Avenue,  which might enable us to increase
our investment in ESI as our circumstances warrant.

Nick, we do recognize that these are  unprecedented and frightening times in the
public  markets.  We see that your served  industries  are  suffering  through a
trough.  We know,  as fellow  members of the  Portland  community,  that ESI has
reduced headcount this year and we are mindful of the pain that this has caused.
We also know,  however,  that as long and painful as these  downturns  are, they
always do come to an end.  Teledyne,  Loews,  and the Washington  Post initiated
their long term repurchase  programs  during troubled times.  Troubled times are
when the bargains are the  greatest,  whether they are bargains  buying your own
shares or bargains buying other companies. Despite the pain and the uncertainty,
now is a time of special opportunity. On September 22, four large, well regarded
companies announced major repurchase programs.  This month we will endure mutual
fund tax loss selling  season.  Over the next three months other hedge funds are
likely to continue  de-leveraging  and  preparing for investor  withdrawals.  It
could  be a  terrific  time  for ESI to put the  shareholders'  money  to  work.
Ultimately,  when the markets  settle down,  and when they  envision the turn in
your  industry's  fortunes,  you know what could happen to your share price:  it
could zoom 100-200% in a couple of months, leaving all who didn't pounce earlier
saying "could have, should have, would have." The time to move is now.

Thanks for considering our views.

Sincerely yours,

/s/David Nierenberg


                                                                               5

Nierenberg Investment Management Company, Inc., 19605 NE 8th Street, Camas, WA
98607 (360)604-8600 Fax (360)604-1811
</TEXT>
</DOCUMENT>