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:
Oct. 25, 2011
Filed:
Jan. 10, 2011
Guangqiang Jiang, Valencia, CA (US);
Attila Antalfy, Santa Clarita, CA (US);
Gary D. Schnittgrund, Granada Hills, CA (US);
Guangqiang Jiang, Valencia, CA (US);
Attila Antalfy, Santa Clarita, CA (US);
Gary D. Schnittgrund, Granada Hills, CA (US);
Alfred E. Mann Foundation For Scientific Research, Santa Clarita, CA (US);
Abstract
The invention is a method of making a hermetic via in a ceramic substrate that is comprised of noble metal powder in a glass-free paste that contains an admixture of a particulate phase of niobium pentoxide. The electrically conductive platinum provides excellent electrical conductivity while the niobium pentoxide phase prevents shrinkage of the paste during thermal processing and binds to both the ceramic and the noble metal particulates in the via, thus maintaining a hermetic seal around the via.