POWER OF ATTORNEY


	Know all by these presents, that the undersigned hereby constitutes and appoints Patricia A. Powers,
signing singly, the undersigned's true and lawful attorney-in-fact to:

(1)	execute for an on behalf of the undersigned, in the undersigned's capacity as an officer of Millipore
Corporation (the "Company"), Forms 3, 4 and 5 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 the undersigned, which may be necessary or
desirable to complete and execute any such Form 3, 4 or 5 and timely file such form 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, the
undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the
undersigned 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.

The undersigned 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 the undersigned 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.  The undersigned acknowledges that the foregoing attorneys-in-
fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming,
any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.

	This power of attorney shall remain in full force and effect until the undersigned is no longer required to
file Forms 3, 4 and 5 with respect to the undersigned's holdings of and transactions in securities issued by the
Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact.


	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 17th
day of  September 2002.

							/s/Kevin Sanborn
							Signature

							Kevin Sanborn
							Print Name