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:
May. 29, 1984
Filed:
Nov. 19, 1982
Frank Vangaever, Brugge, BE;
Jacky Vanhumbeeck, Brugge, BE;
Laurent Danneels, Varsenare, BE;
Luc Boone, Oostkamp, BE;
Luc Demaegd, Drongen, BE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
An additive-free, fast-precipitating electrolyte bath for precipitating lustrous, crack-free palladium layers on workpieces is formulated, by successively adding to distilled water heated up to about 90.degree. C., phosphoric acid, sufficient ammonia to neutralize the phosphoric acid and palladium, in the form of palladium chloride. After dissolution of the palladium salt, the operating pH value is adjusted by additions of ammonia or phosphoric acid as required and the volume of the bath can be increased as desired by additions of further distilled water. The bath can be filtered prior to use.