Exhibit 31.2
CERTIFICATION PURSUANT TO
RULE 13a-14(a) and 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS AMENDED
I, Ronald K. Shelton, certify that:
1. I have reviewed this report on Form 10-K/A of GigOptix, Inc. (the “registrant”) for the year ended December 31, 2009.
2. Based on my knowledge, this report 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 report.
| Date: June 10, 2010 |
/s/ Ronald K. Shelton |
| Ronald K. Shelton |
| Chief Financial Officer and Treasurer |
