SIMTEK CORPORATION 1994 NON-QUALIFIED STOCK OPTION PLAN

                                                                     EXHIBIT 4.1
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                               SIMTEK CORPORATION

                      1994 NON-QUALIFIED STOCK OPTION PLAN

                               SEPTEMBER 27, 1994

       (AMENDED; DECEMBER 13, 1994, SEPTEMBER 15, 1995, OCTOBER 30, 1998,
      APRIL 26, 2000, JANUARY 2, 2001, NOVEMBER 1, 2001, FEBRUARY 10, 2004,
                         JULY 29, 2004 and MAY 17, 2005)


                                 NINTH AMENDMENT

                               DATED: May 17, 2005


Pursuant to a resolution approved by the Simtek Board of Directors on May 17,
2005, the 1994 Non-Qualified Stock Option Plan ("1994 Plan") of September 27,
1994 is amended such that the number of options to be granted under the plan be
increased from 12,500,000 to 15,000,000. Therefore Section 4.1 of the 1994 Plan
is amended to "A total of 15,000,000 shares are authorized for issuance under
the 1994 P