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:
Mar. 16, 1993
Filed:
Apr. 11, 1991
Applicant:
Inventors:
Frederic Rotman, Tokyo, JP;
Dominique Navarro, Pont de la Maye, FR;
Sylvie Mellul, Vitry-sur-Seine, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
427 96 ; 4273741 ;
Abstract
The invention relates to a process for preparing interconnection substrates of hybrid circuits, comprising effecting on a support the deposition of a thick layer of ink or paste based on a non-noble metal, such as copper or other material having a 'copper compatible' formulation, by carrying out in succession a preliminary drying for eliminating solvents at a temperature on the order of 100.degree. C. to 150.degree. C., a firing comprising: