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:
Oct. 14, 2003
Filed:
Sep. 28, 2000
Applicant:
Inventors:
Jerrold C. Rosenfeld, Tonawanda, NY (US);
Jerrine L. Neff, Williamsville, NY (US);
Assignee:
Sumitomo Bakelite Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 2/738 ;
U.S. Cl.
CPC ...
B32B 2/738 ;
Abstract
An adhesive composition that bonds at low temperatures is disclosed. The composition is a solution in an organic solvent of a polyimide, an epoxy resin, and a cyanate. The polyimide can be a polyimidesiloxane, made from a dianhydride, an aromatic diamine that does not contain siloxane, and a siloxane diamine. The adhesive composition can be used to make a single layer tape, a coated tape, or a double-sided trilayer tape. The tape can bond an article, such as a chip, to a substrate, such as a circuit board.