The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2001
Filed:
Sep. 16, 1998
Benjamin V. Fasano, New Windsor, NY (US);
Lewis S. Goldmann, Bedford, NY (US);
Richard F. Indyk, Wappingers Falls, NY (US);
Sundar M. Kamath, San Jose, CA (US);
Scott I. Langenthal, Hyde Park, NY (US);
Srinivasa S. Reddy, Lagrangeville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Multilayer glass ceramic substrate electronic components having enhanced flexibility and strength are prepared using greensheets as a top and/or bottom layer, which greensheets are made from a glass-ceramic greensheet casting composition comprising crystallizable glass, a binder resin and a solvent system, and preferably a plasticizer. The top and/or bottom greensheets have a lower coefficient of thermal expansion (CTE) than the greensheets used to make the internal layers of the MLC and both greensheets are characterized by having, after sintering, a microstructure which is greater than 99% crystalline. A crystalline matrix forming material such as P,O,is preferably used in the composition. This type structure, in combination with the lower CTE, has been found to provide an MLC having enhanced strength and flexibility.