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:
Jul. 01, 2014
Filed:
Feb. 27, 2009
Masahiko Hata, Tsuchiura, JP;
Tomoyuki Takada, Tsukuba, JP;
Masahiko Hata, Tsuchiura, JP;
Tomoyuki Takada, Tsukuba, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
The objective is to improve capabilities such as high-speed switching of a compound semiconductor device. Provided is a semiconductor wafer comprising a silicon wafer; an insulating film that is formed on the silicon wafer and that has an open portion reaching the silicon wafer; a Ge crystal formed in the open portion; a seed compound semiconductor crystal that is grown with the Ge crystal as a nucleus and that protrudes beyond a surface of the insulating film; and a laterally grown compound semiconductor layer that is laterally grown on the insulating film with a specified surface of the seed compound semiconductor crystal as a seed surface.