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:
Sep. 08, 2015
Filed:
Nov. 04, 2013
Ngk Insulators, Ltd., Nagoya, JP;
Tomoyuki Minami, Handa, JP;
Tetsuya Kawajiri, Handa, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A bonded bodyincludes a plate-shaped alumina or aluminum nitride ceramic memberand a Mo or Ti terminalhaving a Ni coating, a Au coating, or a Ni—Au coating (Au on Ni) and joined to a recessin the ceramic memberwith a joint layertherebetween. The joint layercontains Au, Ge, Ag, Cu, and Ti and is in contact with at least part of the side surfaces (herein the entire side surfaces) and the bottom surface of the recess. Ti is rich in the joint interface between the joint layerand the ceramic member. The percentage (porosity) of the sum of the cross-sectional areas of pores to the cross-sectional area of the joint layerin a cross-section taken across the thickness of the bonded bodyis 0.1% to 15%.