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. 09, 1986
Filed:
Feb. 08, 1985
Takashi Nakajima, Kanagawa, JP;
Kenji Kubosono, Kanagawa, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A copper-based alloy for use in electrical and electronic devices, particularly as a material used for forming lead frames of semiconductor devices, which is less expensive than phosphor bronze while providing a mechanical strength and durability to repeated bending comparable with those of phosphor bronze, and also a relatively high conductivity. The inventive alloy is a copper-based alloy containing 1.2 to 2.5 wt % tin, 0.01 to 0.15 wt % phosphorous, 0.1 to 0.6 wt % nickel, 0.05 to 1 wt % zinc, and the remainder being copper and minute amounts of unavoidable impurities.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile