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:
Apr. 28, 1987
Filed:
Oct. 03, 1985
Applicant:
Inventors:
John A Nelson, San Diego, CA (US);
Dale L Robinson, Escondido, CA (US);
Assignee:
Burroughs Corporation, Detroit, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
361399 ; 361400 ; 357 75 ;
Abstract
A magnetically sealed integrated circuit package includes a substrate having a cavity for holding multiple integrated circuit die, a lid for covering the cavity to protect the die, a ferromagnetic seal ring which is fixed to the substrate around the die, and a magnet which is fixed to the lid and coincides in shape to the seal ring for magnetically attracting the seal ring to hold the lid in place when the lid covers the cavity.