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:
Nov. 13, 1990
Filed:
May. 08, 1989
Applicant:
Inventors:
Bernd K Appelt, Apalachin, NY (US);
Perminder Bindra, Vestal, NY (US);
Robert D Edwards, Vestal, NY (US);
James R Loomis, Binghamton, NY (US);
Jae M Park, Binghamton, NY (US);
Jonathan D Reid, Johnson City, NY (US);
Lisa J Smith, Maine, NY (US);
James R White, Owego, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ;
U.S. Cl.
CPC ...
204 15 ; 204 20 ; 204 26 ;
Abstract
Substantially nonconductive or semiconductive surfaces of through holes can be electroplated directly, without an intervening non-electrolytic metallization, by a stepwise process which includes the application to the through holes of a polyelectrolyte surfactant in solution in combination with the application of a conductive metal containing material.