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:
Feb. 11, 1992
Filed:
Aug. 02, 1990
Muneo Hatta, Itami, JP;
Abstract
A semiconductor device having a semiconductor chip packaged in a semiconductor container, which operates in receiving visible light, near infrared light and ultraviolet light, the semiconductor device includes a lower plate formed of a material which hardly transmits light with high insulation resistance and high mechanical intensity and has coefficient of linear expansion almost the same as that of the semiconductor chip, the semiconductor chip mounted on the lower plate, a middle plate comprising a single-layer or a multiple-layer wiring board, and an upper plate formed of a material which hardly transmits light with high insulation resistance and high mechanical intensity and has coefficient of linear expansion almost the same as that of the lower plate and having a window for incident light at one part thereof, in which the lower plate and the upper plate are bonded with putting the middle plate therebetween and an upper part of the upper plate is sealed by a lid formed of glass or a synthetic resin.