EXHIBIT 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 of our report dated January 29, 2003, except for the
information in Note 7 describing the transaction involving the Company's wafer
fabrication business, for which the date is February 28, 2003 and the sale of
the Company's investment in ASI for which the date is March 24, 2003, relating
to the financial statements and financial statement schedule, which appears in
the Company's Annual Report on a Form 10-K for the year ended December 31, 2002.

/s/ Pricewaterhousecoopers LLP

PRICEWATERHOUSECOOPERS LLP

Philadelphia, Pennsylvania
April 15, 2003