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. 20, 1998
Filed:
Jul. 29, 1996
Applicant:
Inventors:
Assignee:
NGK Spark Plug Co., Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257704 ; 428614 ; 428620 ; 428632 ; 428669 ; 174 524 ;
Abstract
A ceramic lid assembly includes an integral metallized layer provided around the periphery of a ceramic lid substrate to serve as a foundation for a solder layer. A portion of the metallized layer for contact with the ceramic lid substrate is formed from a metallized paste containing glass frits so that the metallized layer is baked to adhere to the ceramic lid by reflowed glass frits. A portion of the metallized layer for contact with the solder layer is formed from a metallized paste containing no glass frits so that substantially no void is formed in the solder layer.