<DOCUMENT>
<TYPE>EX-23.B
<SEQUENCE>4
<FILENAME>b41977aiex23-b.txt
<DESCRIPTION>CONSENT OF DELOITTE AND TOUCHE LLP
<TEXT>
<PAGE>

                                                                    Exhibit 23.b


INDEPENDENT AUDITORS' CONSENT


We consent to the use in this Registration Statement of Alpha Industries, Inc.
on Form S-4 of our report dated February 14, 2002, relating to the combined
financial statements of the Washington Business and the Mexicali
Operations of Conexant Systems, Inc. as of September 30, 2000 and 2001, and for
each of the three years in the period ended September 30, 2001, appearing in the
Proxy Statement/Prospectus-Information Statement, which is part of this
Registration Statement. We also consent to the reference to us under the
headings "Historical Selected Combined Financial Data of the Washington
Business and the Mexicali Operations" and "Experts" in such Proxy
Statement/Prospectus-Information Statement.

/S/ DELOITTE & TOUCHE LLP

Costa Mesa, California
March 4, 2002

</TEXT>
</DOCUMENT>
