UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q/A

Amendment No. 1 to

For the Period Ended December 31, 2002

OR

For The Transition Period From                  To                 

Commission File Number 0-15449

CALIFORNIA MICRO DEVICES CORPORATION

(Exact name of registrant as specified in its charter)

(408) 263-3214

(Registrant’s telephone number, including area code)

Not applicable

(Former name, former address, and former fiscal year if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes  x    No   ¨

Applicable Only to Corporate Issuers

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date:

The number of shares of the registrant’s Common Stock outstanding as of February 13, 2003, was 15,880,926.

EXPLANATORY NOTE

Registrant hereby amends Item 6 of Part II of its Form 10-Q for the interim period ended December 31, 2002, to replace Exhibit 10.14 with the attached Exhibit 10.14 to reflect changes in the redacted portions of such exhibit in connection with the Registrant’s request for confidential treatment of such exhibit. These changes in the redactions were made in response to comments that the Registrant received from the SEC regarding its confidential treatment request. Registrant also hereby amends Item 6 of Part II of its Form 10-Q for the interim period ended December 31, 2002, to reflect the withdrawal of its request for confidential treatment with respect to Exhibit 10.15. A revised copy of Exhibit 10.14 and a complete copy of Exhibit 10.15 are attached hereto.

PART II.    OTHER INFORMATION

ITEM 6.    Exhibits and Reports on Form 8-K.

(a)  Exhibits.    The following exhibits are included:

*    Filed previously.

**  Confidential Treatment has been requested with respect to certain portions of this agreement.

†    Unless we fail to timely cure any default, this license lasts in perpetuity.

(b)  Reports on Form 8-K.    The Company filed a Report on Form 8-K on November 27, 2002, which reported under Item 5 the issuance of press releases relating to the Company’s equity private placement.

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SIGNATURE

Pursuant to the requirements of the Securities and Exchange Act of 1934, the Registrant has duly caused this Amendment No. 1 to Report on Form 10-Q to be signed on its behalf by the undersigned, thereunto duly authorized on the 24th day of February 2003.

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CERTIFICATIONS

I, Robert V. Dickinson, certify that:

1. I have reviewed this Amendment No. 1 on Form 10-Q/A (the “Amendment”) to Quarterly Report on Form 10-Q for the fiscal quarter ended December 31, 2002, of California Micro Devices Corporation, a California corporation; and

2. Based on my knowledge, this Amendment does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Amendment.

Date: February 24, 2003

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CERTIFICATIONS

I, Kenneth E. Thornbrugh, certify that:

1. I have reviewed this Amendment No. 1 on Form 10-Q/A (the “Amendment”) to Quarterly Report on Form 10-Q for the fiscal quarter ended December 31, 2002, of California Micro Devices Corporation, a California corporation (“registrant”); and

2. Based on my knowledge, this Amendment does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Amendment.

Date: February 24, 2003

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