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:
Apr. 05, 2005
Filed:
Jun. 27, 2003
Toru Kurosaki, Saitama, JP;
Hiroaki Shishido, Saitama, JP;
Mizue Kitada, Saitama, JP;
Shinji Kunori, Saitama, JP;
Kosuke Ohshima, Saitama, JP;
Toru Kurosaki, Saitama, JP;
Hiroaki Shishido, Saitama, JP;
Mizue Kitada, Saitama, JP;
Shinji Kunori, Saitama, JP;
Kosuke Ohshima, Saitama, JP;
Shindengen Electric Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A semiconductor device having grooves uniformly filled with semiconductor fillers is provided. Both ends of each of narrow active grooves are connected to an inner circumferential groove surrounding the active grooves. The growth speed of semiconductor fillers on both ends of the active grooves becomes equal to that at their central portions. As a result, a semiconductor device having the active grooves filled with the semiconductor fillers at a uniform height is obtained.