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. 18, 2001
Filed:
Sep. 17, 1999
Noriyuki Ashiwake, Tsuchiura, JP;
Toshio Otaguro, Ibaraki-ken, JP;
Atsuo Nishihara, Kashiwa, JP;
Mitsuru Honma, Ibaraki-ken, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
It is an object of the invention to provide a cooler of an electronic apparatus capable of keeping semiconductor chips at a low temperature without care of condensation and which is excellent in compactness. To achieve the above object, the present invention proposes an electronic apparatus in which a heating region is built in the multilayered wiring substrate of the semiconductor package or module on the side near to the input/output pins, the semiconductor package or module and the cooler mounted on the package or module are placed in a moisture proof case, a heat insulating material is filled in the gaps between the moisture proof case, semiconductor package or module and cooler, and a heater is provided on the outer periphery of the heat insulating material.