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. 07, 1989
Filed:
Oct. 02, 1986
Applicant:
Inventors:
Ashok N Prabhu, East Windsor Township, Mercer County, NJ (US);
Kenneth W Hang, West Windsor, Mercer County, NJ (US);
Simon M Boardman, Holland, PA (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252512 ; 106-113 ; 106 20 ; 501 69 ; 501 73 ; 501 77 ;
Abstract
An improved copper via-fill ink for forming post-ups in a thick dielectric layer separating two patterned layers of copper conductor in a multilayer circuit assembly is provided. The via-fill ink comprises copper powder, a suitable organic vehicle and a glass frit consisting of a devitrifying glass and a vitreous glass. The devitrifying glass is a zinc-magnesium-barium-aluminum-zirconium-phosphosilicate glass and the vitreous glass is a barium-calcium-borosilicate glass.