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:
Nov. 12, 1991
Filed:
Jan. 16, 1990
Alan L Kovacs, Long Beach, CA (US);
Michael R Ehlert, Irvine, CA (US);
Helen Congleton, Huntington Beach, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
An integrated circuit package includes a rectangular base, and a continuous sidewall which extends upwardly from the periphery of the base. Microelectronic circuit components are mounted on the base in a cavity defined within the sidewall. A domed lid includes a resilient central domed portion which arches above the cavity. A peripheral edge portion of the lid extends downwardly into the cavity by a small distance, adjacent to the inner surface of the sidewall. A lip extends outwardly from the edge portion and is sealingly welded at its periphery to the upper surface of the sidewall. The joint between the lip and edge portion is resilient and acts as a hinge, such that when a force or pressure is applied to the domed portion, the edge portion rotates about the hinge into abutment with the inner surface of the sidewall. This transfers a major component of the applied force to the sidewall, and resists deflection of the domed portion into the cavity.