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                                                                   EXHIBIT 23(b)


                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

The Board of Directors
Alpha Industries, Inc.:

         We consent to the incorporation by reference in this Registration
Statement on Form S-8 for the Alpha Industries, Inc. 1997 Non-Qualified Stock
Option Plan for Non-Employee Directors of our audit report dated May 6, 1998 on
the consolidated financial statements of Alpha Industries, Inc. and subsidiaries
as of March 29, 1998 and for each of the years in the three-year period then
ended and to the reference to our firm under the heading "Experts" in the
prospectus.



/s/ KPMG Peat Marwick LLP
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Boston, Massachusetts
January 21, 1999