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. 10, 2009
Filed:
Feb. 21, 2006
Applicants:
Kunio Takeuchi, Joyo, JP;
Yasumitsu Kunoh, Hirakata, JP;
Inventors:
Kunio Takeuchi, Joyo, JP;
Yasumitsu Kunoh, Hirakata, JP;
Assignee:
Sanyo Electric Co., Ltd., Moriguchi-Shi, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A principal surface at one side of a support substrate has thereon an adjustment layer made of material having a higher thermal expansion coefficient than that of the support substrate. Then, a nitride-base semiconductor element layer and the support substrate on a growth substrate are joined via an adhesion layer. Next, the support substrate is joined to the nitride-base semiconductor element layer via the adhesion layer. Next, the growth substrate is separated from the joined nitride-base semiconductor element layer and the support substrate.