Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Wong Bing-Fai
 2. Date of Event Requiring Statement (Month/Day/Year)
05/15/2008		 3. Issuer Name and Ticker or Trading Symbol
ELECTRO SCIENTIFIC INDUSTRIES INC [ESIO]
(Last)
(First)
(Middle)
13900 NW SCIENCE PARK DR.		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr Director of Customer Ops
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PORTLAND, OR 97229		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 16,622
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Incentive Stock Option (right to buy)   (1) 05/14/2018 Common Stock 13,000 $ 16.58 D  
Non-Qualified Stock Option (right to buy)   (2) 04/19/2015 Common Stock 12,000 $ 16.92 D  
Non-Qualified Stock Option (right to buy)   (3) 07/20/2015 Common Stock 26,000 $ 19.84 D  
Non-Qualified Stock Option (right to buy)   (4) 05/24/2016 Common Stock 8,667 $ 20 D  
Non-Qualified Stock Option (right to buy)   (5) 11/12/2013 Common Stock 10,000 $ 25 D  
Non-Qualified Stock Option (right to buy)   (5) 04/05/2011 Common Stock 6,575 $ 27 D  
Non-Qualified Stock Option (right to buy)   (5) 04/16/2012 Common Stock 9,170 $ 34.57 D  
Non-Qualified Stock Option (right to buy)   (1) 04/13/2010 Common Stock 7,000 $ 52.75 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Wong Bing-Fai
13900 NW SCIENCE PARK DR.
PORTLAND, OR 97229		       Sr Director of Customer Ops  

Signatures

Bing-Fai Wong 05/27/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Option becomes exercisable for 25% of the shares on the first four anniversaries of the grant date.
(2) Option becomes 100% exercisable on 4/20/06. The shares underlying the option are restricted from being sold for a period of 3 years from the grant date.
(3) Option becomes 100% exercisable on 5/26/06. The shares underlying the option are restricted from being sold for a period of 3 years from the grant date.
(4) Shares under options granted on 5/24/06 become 100% exercisable on 5/26/06. The original grants were for a total of 10,000 shares. The reporting person exercised 1,333 of the shares prior to becoming subject to Section 16, leaving 8,667 shares exercisable. The sale restriction lapses with regard to 1/3 of the total shares on each of the first three anniversaries of the grant date.
(5) Options become exercisable for 25% of the shares on the first four anniversaries of the grant date. Effective June 28, 2004 the vesting of the option was accelerated to be 100% vested on June 28, 2004. As a result of this vesting acceleration, the original ISO / NQ split of the total shares granted was adjusted if necessary to comply with the IRS limitation.

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