EXHIBIT 24
				POWER OF ATTORNEY

Know all by these presents, that Paul F. Folino hereby constitutes and appoints
James J. Peterson, David R. Sonksen, Ralph Brandi, Debbie Weber and John M.
Holtrust, or any of them acting singly, each with full power of substitution,
Paul F. Folino's true and lawful attorney in fact to:

(1)	execute for and on behalf of Paul F. Folino, in Paul F. Folino's
capacity as an executive officer and/or director of MICROSEMI CORPORATION
(the "Company"):

(i) a Form 3, Initial Statement of Beneficial Ownership of Securities; (ii) a
Form 4, Statement of Changes in Beneficial Ownership of Securities; and (iii) a
Form 5, Annual Statement of Beneficial Ownership of Securities, in accordance
with Section 16(a) of the Securities Exchange Act of 1934 and the rules
thereunder;

(2)	do and perform any and all acts for and on behalf of Paul F. Folino
which may be necessary or desirable to complete and execute such Form 3,
Form 4, and Form 5 report(s) and to timely file such Form(s) with the United
States Securities and Exchange Commission and any stock exchange or similar
authority; and

(3)	take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney in fact, may be of benefit
to, in the best interest of, or legally required by, Paul F. Folino, it being
understood that the documents executed by such attorney in fact on behalf of
Paul F. Folino pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney in fact may approve
in such attorney in fact's discretion.

Paul F. Folino hereby grants to such attorney in fact full power and authority
to do and perform any and every act and thing whatsoever requisite, necessary,
or proper to be done in the exercise of any of the rights and powers herein
granted, as fully to all intents and purposes as Paul F. Folino might or could
do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney in fact, or such
attorney in fact's substitute or substitutes, shall lawfully do or cause to
be done by virtue of this Power of Attorney and the rights and powers herein
granted.  Paul F. Folino acknowledges that the foregoing attorney in fact, in
serving in such capacity at the request of Paul F. Folino, is not assuming,
nor is the Company assuming, any of Paul F. Folino's responsibility to comply
with Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until revoked by
Paul F. Folino in a signed writing delivered to the foregoing attorney in fact.

IN WITNESS WHEREOF, Paul F. Folino has caused this Power of Attorney to be
executed as of this 20th day of July, 2004.

						/s/ Paul F. Folino
						Signature