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:
Jul. 14, 1992
Filed:
Oct. 30, 1990
Applicant:
Inventors:
Perminder S Bindra, South Salem, NY (US);
Dennis A Canfield, Montrose, PA (US);
Voya R Markovich, Endwell, NY (US);
Jeffrey McKeveny, Binghamton, NY (US);
Robert E Ruane, Endicott, NY (US);
Edwin L Thomas, Apalachin, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01K / ;
U.S. Cl.
CPC ...
29852 ; 29830 ; 174 36 ; 174262 ; 174263 ;
Abstract
A structure and method are disclosed for making high density circuit board. Using photosensitive or other dielectric materials over a circuitized power core, vias and lands are opened up, filled with joining metal and aligned with the next level, eliminating a major registration problem in building up a high density composite and reducing the number of steps in the manufacturing process.