<DOCUMENT>
<TYPE>EX-23.F
<SEQUENCE>5
<FILENAME>b41977aiex23-f.txt
<DESCRIPTION>CONSENT OF U.S. BANCORP PIPER JAFFRAY INC.
<TEXT>
<PAGE>
                                                                    EXHIBIT 23.f


                   CONSENT OF U.S. BANCORP PIPER JAFFRAY INC.

We hereby consent to the inclusion in the Registration Statement on Form S-4 of
Alpha Industries, Inc. relating to the proposed merger of Washington Sub, Inc.
with and into Alpha Industries, Inc., of our opinion letter, dated December 16,
2001, appearing as an annex to the Proxy Statement/Prospectus-Information
Statement which is a part of the Registration Statement, and to the references
of our firm name therein. In giving such consent, we do not thereby admit that
we come within the category of person whose consent is required under Section 7
or Section 11 of the Securities Act of 1933, as amended, or the rules and
regulations adopted by the Securities and Exchange Commission thereunder, nor do
we admit that we are experts with respect to any part of such Registration
Statement within the meaning of the term "experts" as used in the Securities Act
of 1933, as amended, or the rules and regulations of the Securities and Exchange
Commission thereunder.

Very truly yours,



By /s/ U.S. Bancorp Piper Jaffray Inc.
   ----------------------------------------------
       U.S. Bancorp Piper Jaffray Inc.



Minneapolis, Minnesota
March 5, 2002



</TEXT>
</DOCUMENT>
