Semiconductors

                              RESEARCH AGREEMENT


This Agreement is made effective this 31st day of March, 2001, by and between
Millipore Corporation, a Massachusetts Corporation ("Millipore"), and Mykrolis
Corporation, a Delaware corporation, ("Mykrolis").

                          Introduction and Background

1.   The Board of Directors of Millipore has determined that it is in the best
     interest of Millipore and its stockholders to separate Millipore's existing
     businesses into two independent businesses.

2.   As part of the foregoing, Millipore  . . .

                               RESEARCH AGREEMENT


This Agreement is made effective this ______ day of __________, 2001, by and
between Millipore Corporation, a Massachusetts Corporation ("Millipore"), and
Millipore MicroElectronics, Inc., a Delaware corporation, ("MMI").

                          INTRODUCTION AND BACKGROUND

1.   The Board of Directors of Millipore has determined that it is in the best
     interest of Millipore and its stockholders to separate Millipore's existing
     businesses into two independent businesses.

2.   As part of the foregoing, Millipore  . . .