CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Amendment No. 3 to the Registration Statement on Form S-1 (the "Registration Statement") of CombiMatrix Corporation (the "Company") of our report dated February 18, 2016, relating to our audits of the Company's consolidated financial statements as of December 31, 2015 and 2014, and for each of the years then ended, included in the Company's Annual Report on Form 10-K for the year ended December 31, 2015, which report includes an explanatory paragraph expressing substantial doubt regarding the Company's ability to continue as a going concern. We also consent to the reference to us under the heading "Experts" in this Registration Statement.
| /s/ HASKELL & WHITE LLP |
Irvine, California
March 18, 2016
