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:
Oct. 19, 1982
Filed:
Aug. 07, 1981
Applicant:
Inventors:
Thomas C Dodd, Millstone Township, Somerset County, NJ (US);
John A Emerson, Alexandria Township, Hunterdon County, NJ (US);
Assignee:
Western Electric Company Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
2041 / ; 427304 ; 361397 ;
Abstract
It has been discovered that by cleaning a substrate having a negative ink pattern of a desired circuit in a plasma comprising 60/40 oxygen/argon and then sputtering a thin (10-50 Angstroms) layer of catalytic copper thereover, the treated substrate when exposed to an electroless plating bath will selectively plate only in the areas where there is no ink.