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:
Dec. 13, 1976
Filed:
Jan. 21, 1975
Wolf-Dieter Muenz, Unterhaching, DT;
Siemens Aktiengesellschaft, Berlin & Munich, DT;
Abstract
Method for the production of an electric thin-film circuit having a conductor path and at least one capacitor and/or one resistor, and comprising a substrate base member and the forming of a first tantalum-aluminum-alloy layer thereupon and etching the tantalum-aluminum-alloy layer to form the outline of the conductor path. A second tantalum-aluminum alloy layer is then laid on the first tantalum-aluminum-alloy layer and has a tantalum content of approximately 2 through 20 atomic percent at least in the area of the capacitor. An oxidation layer is formed upon the second tantalum-aluminum-alloy layer to constitute the capacitor dielectric. The conductor paths and the opposite capacitor electrode are formed of a conductive layer such as a nickel-chromium-gold layer which is applied as a surface layer and serves as a capacitor electrode and as conductor paths.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile