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:
Dec. 02, 2008
Filed:
Jul. 06, 2001
Tadahiro Ohmi, Miyagi, JP;
Shigetoshi Sugawa, Miyagi, JP;
Tatsuo Ito, Gunma, JP;
Koichi Kanaya, Gunma, JP;
Tadahiro Ohmi, Miyagi, JP;
Shigetoshi Sugawa, Miyagi, JP;
Tatsuo Ito, Gunma, JP;
Koichi Kanaya, Gunma, JP;
Shin-Etsu Handotai Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a single crystal wafer, wherein the main surface has a plane or a plane equivalent to a plane tilting with respect to a [100] axis of single crystal by angles of α (0°<α<90°) for the [011] direction, β (0°<β<90°) for the [01-1] direction and γ (0°≦γ<45°) for the [10-1] or [101] direction. Thus, a single crystal wafer that can sufficiently bear device production processes even with a small wafer thickness is provided and thereby loss of single crystal raw material is reduced. Further, by using such a wafer, MIS type semiconductor devices and solar cells are provided at a low cost.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile