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. 27, 2020
Filed:
Oct. 24, 2016
Ngk Insulators, Ltd., Nagoya, JP;
Tomoyuki Minami, Handa, JP;
Tetsuya Kawajiri, Handa, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A joined bodyis manufactured by joining a Mo- or Ti-made terminalhaving a Ni coating, a Au coating, a Ni—Au coating (with Ni Serving as a base) to a recessformed in a plate-shaped ceramic membermade of alumina or aluminum nitride through a joint layerThe joint layercontains Au, Sn, Ag, Cu, and Ti and is in contact with a bottom surface of the recessand with at least part of a side surface of the recess(the entire side surface in this case). In the joint layerits joint interface with the ceramic memberis Ti-rich. When the joined bodyis cut in its thickness direction, the ratio of the total cross sectional area of pores to the cross-sectional area of the joint layer(porosity) is 0.1 to 15%.