MICROCHIP TECHNOLOGY INC — Proxy Solicitation & Information Statement 2010

Feb 3, 2010

EFPlaceholder UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(Rule 14a-101)

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )

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by the Registrant | ¨ |
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| Filed
by a Party other than the Registrant | ý |

Check the appropriate box:

¨ Preliminary proxy statement.

¨ Confidential, for use of the Commission Only (as permitted by Rule 14a-6(e)(2) ).

¨ Definitive Proxy Statement.

¨ Definitive Additional Materials.

ý Soliciting Material Pursuant to § 240.14a-12.

Silicon Storage Technology, Inc.

(Name of Registrant as Specified in its Charter)

Microchip Technology Incorporated

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

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¨ Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

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Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):

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¨ Fee paid previously with preliminary materials.

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Filed by Microchip Technology Incorporated

Pursuant to Rule 14a-12

of the Securities Exchange Act of 1934

Subject Company: Silicon Storage Technology, Inc.

Commission File No.: 000-26944

On February 3, 2010, Microchip Technology Incorporated posted the following materials on their website, www.microchip.com , in connection with their proposed acquisition of Silicon Storage Technology, Inc.

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