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:
May. 27, 1997
Filed:
May. 09, 1996
Applicant:
Inventors:
Kenneth R Carter, San Jose, CA (US);
Richard A DiPietro, San Jose, CA (US);
James L Hedrick, Pleasanton, CA (US);
John P Hummel, Millbrook, NY (US);
Robert D Miller, San Jose, CA (US);
Martha I Sanchez, Menlo Park, CA (US);
Willi Volksen, San Jose, CA (US);
Do Y Yoon, Los Gatos, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; C08G / ;
U.S. Cl.
CPC ...
427 96 ; 4273855 ; 528310 ; 528332 ; 528503 ;
Abstract
The invention relates to a process for forming a circuit assembly comprising (i) coating onto a substrate a layer of polyamic ester selected from a unique class of polyamic esters; (ii) imidizing the polyamic ester to form a layer of polyimide having an even surface and (iii) forming circuit conductors on the even surface of the polyimide.