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:
Apr. 18, 1978
Filed:
Feb. 22, 1977
Applicant:
Inventors:
Naresh Chakrabarty, Germering, DT;
Artur Weitze, Munich, DT;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DT;
Primary Examiner:
Int. Cl.
CPC ...
H05K / ; H05K / ;
U.S. Cl.
CPC ...
29626 ; 29625 ; 174 685 ; 2281 / ; 228219 ; 228238 ; 427190 ; 427191 ;
Abstract
A process for producing a thick film circuit with terminal elements on an inorganic substrate. A paste of silver powder, copper oxide powder and organic bonding agent is silk screen printed on an inorganic substrate, dried and sintered. Then over preselected locations along individual conductor paths terminal elements are hard soldered. The conductor paths are strongly adhered to the inorganic substrate and the terminal elements are likewise strongly adhered to the individual conductor paths.