Exhibit 5.5
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                            HOLME ROBERTS & OWEN LLP
                       90 South Cascade Avenue, Suite 1300
                      Colorado Springs, Colorado 80903-1615
                        tel 719.473.3800 fax 719.633.1518


April 14, 2006

Board of Directors
Simtek Corporation
4250 Buckingham Drive, #100
Colorado Springs, Colorado  80907

Re:  Simtek Corporation Pre-Effective Amendment No. 1 to Registration Statement
     on Form S-1 (Registration No. 333-132180)

Dear Gentlemen:

As counsel for Simtek Corporation, a Colorado corporation (the "Company"), we
have examined the above-referenced Pre-Effective Amendment No. 1 to Registration
Statement on Form S-1 (the "Registration Statement") under the Securities Act of
1933, as amended (the "Act"), that the Company is filing with the Securities and
Exchange Commission (the "SEC") with respect to the registration of 122,793,324
shares of its common stock, par value $0.01 per share ("Common Stock"), of which
10,000,000 shares of Common Stock are issuable upon the exercise of that certain
Stock Purchase Warrant, dated March 24, 2006 (the "Warrant"), granted by the
Company to Cypress Semiconductor Corporation ("Cypress").

This opinion is being furnished in accordance with the requirements of Item
601(b)(5) of Regulation S-K under the Act.

We have also examined the Company's Amended and Restated Articles of
Incorporation, By-laws and the originals or copies certified to our satisfaction
of certain corporate records and proceedings of the Company and such other
certificates, instruments and documents as we deemed appropriate to enable us to
render the opinion expressed below.

In all such examinations, we have assumed, without independent investigation or
inquiry, the legal capacity of all natural persons executing documents, the





Simtek Corporation
April 14, 2005
Page 2


genuineness of all signatures on original or certified copies, the authenticity
of all original or certified copies and the conformity to original or certified
documents of all copies submitted to us as conformed or reproduction copies. We
have relied as to factual matters upon and have assumed the accuracy of and have
made no independent investigation of, the statements made in the certificates
and other statements or information of or from public officials and officers and
representatives of the Company.

Based on the foregoing and the limitations, qualifications, exceptions and
assumptions set forth herein, it is our opinion that when the Warrant is
exercised and the exercise price paid in accordance with the terms of the
Warrant, the shares of Common Stock issuable pursuant to such Warrant will be
validly issued, fully paid and non-assessable.

The opinions expressed herein are limited to the laws of the State of Colorado.

We hereby consent to the reference to us under the caption "Legal Matters" in
the Registration Statement; provided, however, in giving this consent we do not
admit we are included in the category of persons whose consent is required under
Section 7 of the Act or the rules and regulations of the SEC promulgated
thereunder. We further consent to the filing of this opinion as an exhibit to
the Registration Statement.

We express no opinion as to any matters not expressly set forth herein. The
opinions expressed herein are rendered as of the date hereof. We do not
undertake to advise you of matters that may come to our attention subsequent to
the date hereof and that may affect the opinions expressed herein, including
without limitation, future changes in applicable law. This letter is our opinion
as to certain legal conclusions as specifically set forth herein and is not and
should not be deemed to be a representation or opinion as to any factual
matters.

Sincerely,

HOLME ROBERTS & OWEN LLP

/S/ HOLME ROBERTS & OWEN LLP