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:
Oct. 29, 2013
Filed:
Dec. 08, 2011
Tetsuji Matsuo, Niiza, JP;
Tetsuji Matsuo, Niiza, JP;
Sanken Electric Co., Ltd., Niiza-shi, JP;
Abstract
A semiconductor wafer includes a multilayered film having a structure in which nondoped first nitride semiconductor layers and nondoped second nitride semiconductor layers with a larger lattice constant than the first nitride semiconductor layer are laminated alternately, and a nondoped third nitride semiconductor layer which is located on the multilayered film and has a larger lattice constant than the first nitride semiconductor layer, wherein the semiconductor wafer has conductivity in a film-thickness direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile