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. 14, 2009
Filed:
May. 29, 2008
Konstantinos I. Papathomas, Endicott, NY (US);
Konstantinos I. Papathomas, Endicott, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An encapsulant composition. The encapsulant composition includes a resin material consisting of epoxy or cyanate ester resins, from about 1.0% by weight to about 5% by weight of the composition of a flexibilizing agent including a flexibilizer containing functional groups capable of reaction with the epoxy or cyanate ester resin during thermally induced curing, a filler material including substantially spherical or spheroidal particles such that each particle has a diameter less than about 41 microns, and a thermoplastic other than the flexibilizer. The thermoplastic is separated from the cured epoxy or cyanate ester resin. The thermoplastic includes a poly(arylene)ether. The flexibilizer includes bis(2,3-epoxy-2-methylpropyl)ether.