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:
Feb. 22, 1994
Filed:
Jul. 14, 1992
Applicant:
Inventors:
Michael J Cibulsky, Binghamton, NY (US);
Konstantinos I Papathomas, Endicott, NY (US);
William J Summa, Endwell, NY (US);
David W Wang, Vestal, NY (US);
Patrick R Zippetelli, Endwell, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428209 ; 428901 ; 428201 ; 428202 ; 428416 ; 428457 ; 4284735 ; 174250 ; 174254 ; 361750 ; 361751 ; 361792 ;
Abstract
A composite for providing a rigid-flexible circuit board includes at least one core that contains a dielectric substrate and at least one conductive layer thereon; at least one sub-composite that includes a polyimide and a rigid dielectric substrate; a release layer; at least one rigid bonding layer and a second conductive layer. The composite is used in the fabrication of a rigid-flexible circuit board.