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. 12, 2002
Filed:
Jan. 10, 2001
Nobuyoshi Tatoh, Itami, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A hermetically sealed optical-semiconductor container in which an optical-semiconductor element is accommodated, comprising a frame made of a metal, an insulating material or a composite material of a metal and an insulating material, a first bottom plate fixed to the frame, and a second bottom plate fixed to opposite surface of the first bottom plate to the frame, either of the first and second bottom plates being made of a metal and having a smaller Young's modulus than the other. For example, the first bottom plate is not less than 25×10 kg/mm in Young's modulus, and the second bottom plate is not greater than 15×10 kg/mm . An optical-semiconductor element, an electronic cooling device and the like are mounted in this container, thus producing an optical-semiconductor module free from degradation of an electronic cooling element nor deviation of an optical axis occurs.