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:
Jan. 03, 1978
Filed:
Jun. 28, 1976
Warren Alan Alpaugh, Chenango Forks, NY (US);
George Joseph Macur, Endwell, NY (US);
Gary Paul Vlasak, Owego, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A three step seeding process with a hot water rinse and bake includes first contacting the surface of a substrate with a stannous chloride sensitizing solution, followed by a hot water rinse to remove any excess stannous chloride. Next, a palladium chloride activator is used to interact with the stannous compounds to form an adherent layer of metallic palladium particles. Thereafter, the surface is subjected to a palladium chloride/stannous chloride/HCL seeder bath which deposits a final catalytic layer on the surface and drilled through holes to facilitate the electroless plating of a metal of the substrate. A subsequent baking at a temperature between 105.degree. C and 120.degree. C sets the seeder on the substrate surface and in the through holes in the substrate.