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. 06, 1999
Filed:
Feb. 05, 1996
Applicant:
Inventors:
Kiyoshi Yamamoto, Nikko, JP;
Masanori Ozaki, Utsunomiya, JP;
Takeshi Hirasawa, Nikko, JP;
Yoshikazu Ohashi, Imaichi, JP;
Assignee:
The Furukawa Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
335151 ; 335 58 ; 427165 ;
Abstract
In an encapsulated contact material which varies little in contact resistance and has good working life performance, at least one contact coating layer is formed covering the surface of a contact substrate. The contact coating layer includes a substantial matrix formed of at least one element selected from a group including Mo, Zr, Nb, Hf, Ta, and W, the matrix being loaded with 0.5 to 50 atom % of at least one element selected from a group including Zn, Cd, Hg, Al, Ga, In, Tl, Ge, Sn, Pb, As, Sb, and Bi. The contact coating layer has a thickness of 0.1 .mu.m or more.