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:
Jan. 11, 1994
Filed:
Sep. 30, 1991
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A semiconductor device sealed with mold resin is disclosed. The device includes a semiconductor substrate having a main surface and an element formed on the main surface of the semiconductor substrate. A stress buffering film for protecting at least the element from stress of the mold resin is provided on the semiconductor substrate so as to cover at least the element. The entire semiconductor device is covered and sealed with mold resin. The stress buffering film is formed of organo-silicone ladder polymer having a hydroxyl group at its end. In the semiconductor device, water does not get into an interface of the stress buffering film and the underlying substrate, resulting in an enhancement of the moisture resistance of the semiconductor device.