- Additional Proxy Soliciting Materials - Non-Management (definitive) (DFAN14A)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

(Amendment No. )

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o Preliminary Proxy Statement

¨ Confidential, for Use of the Commission Only (as permitted by Rule14a-6(e)(2))

¨ Definitive Proxy Statement

x Definitive Additional Materials

o Soliciting Material Under Rule 14a-12

CALIFORNIA MICRO DEVICES CORPORATION

(Name of Registrant as Specified in Its Charter)

DIALECTIC CAPITAL MANAGEMENT, LLC

DIALECTIC CAPITAL PARTNERS, LP

DIALECTIC OFFSHORE, LTD.

DIALECTIC ANTITHESIS PARTNERS, LP

DIALECTIC ANTITHESIS OFFSHORE, LTD.

JOHN FICHTHORN

LUKE FICHTHORN

BRYANT RILEY

J. MICHAEL GULLARD

KENNETH POTASHNER

(Name of Persons(s) Filing Proxy Statement, if Other Than the Registrant)

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On July 30, 2009, Dialectic Capital Management, LLC (“Dialectic Capital”), together with the other participants named herein, made a definitive filing with the Securities and Exchange Commission of a proxy statement and accompanying GOLD proxy card to be used to solicit votes for the election of its slate of nominees as directors at the 2009 annual meeting of stockholders of California Micro Devices Corporation.

Item 1: On September 1, 2009, Dialectic Capital presented the following Slide Presentation to RiskMetrics Group: