UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a)

of the Securities Exchange Act of 1934

(Amendment No.      )

Filed by the Registrant  x

Filed by a Party other than the Registrant  ¨

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¨	Preliminary Proxy Statement	¨	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
¨	Definitive Proxy Statement
x	Definitive Additional Materials
¨	Soliciting Material Pursuant to §240.14a-12

CYMER, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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x	No fee required.
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¨	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Shareholder Meeting to Be Held on May 22, 2012

	Meeting Information
CYMER, INC.	Meeting Type:   Annual Meeting
	For holders as of:   March 26, 2012
	Date:    May 22, 2012	Time: 10:00 AM PDT
	Location:  Cymer’s Corporate Headquarters
	17075 Thornmint Court
	San Diego, California 92127  For directions please call (858) 385-6097

CYMER, INC. 17075 THORNMINT COURT SAN DIEGO, CA 92127	You are receiving this communication because you hold shares in the above named company.
	This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).
	We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

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 Before You Vote 

How to Access the Proxy Materials

  Proxy Materials Available to VIEW or RECEIVE:

  I. Proxy Statement/Annual Report on Form 10-K

  How to View Online:

  Have the information that is printed in the box marked by the arrow    (located on the following   page) and visit: www.proxyvote.com.

  How to Request and Receive a PAPER or E-MAIL Copy:

  If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a

  copy. Please choose one of the following methods to make your request:

                                 1) BY INTERNET:         www.proxyvote.com

                                 2) BY TELEPHONE:    1-800-579-1639

                                 3) BY E-MAIL*:            sendmaterial@proxyvote.com

*     If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow    (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 08, 2012 to facilitate timely delivery.

 How To Vote 

Please Choose One of the Following Voting Methods

Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares.

Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow    available and follow the instructions.

Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

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Voting items

The Board of Directors recommends you vote FOR the following:

1.     Election of Directors
Nominees
01    Charles J. Abbe	06    Eric M. Ruttenberg
02    Robert P. Akins	07    Peter J. Simone
03    Edward H. Braun	08    Young K. Sohn
04    Michael R. Gaulke	09    Jon D. Tompkins
05    William G. Oldham

The Board of Directors recommends you vote FOR proposals 2. and 3..

2.      Ratification of the appointment of KPMG LLP as our independent registered public accounting firm for 2012.

3.      An advisory vote to approve, by non-binding vote, the compensation of Cymer’s named executive officers.

The Board of Directors does not have a recommendation for voting on the following proposal(s):

4.      Conducting any other business properly brought before the meeting.

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