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:
Jul. 09, 1991
Filed:
Feb. 20, 1990
Applicant:
Inventors:
Robert E Braun, Norristown, PA (US);
Ronald T Gibbs, King of Prussia, PA (US);
Assignee:
Unisys Corporation, Blue Bell, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 74 ; 357 75 ; 357 81 ; 357 80 ;
Abstract
An individual integrated circuit package utilizing an intermediate die carrier having legs in contact with a wiring substrate and a compatible lid to effect hermeticity. More specifically, the carrier includes on its outer surface a raised section and a peripheral ledge. The cap is formed with a cutout in its closed extremity to accommodate the raised carrier section and the portions of the cap adjacent the cutout rest upon and are sealed to the carrier ledge. The rim of the cap at its open extremity contacts and is sealed to the substrate to form the completed hermetic package.