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:
May. 19, 1998
Filed:
Oct. 15, 1996
Applicant:
Inventors:
Assignees:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Mitsubishi Electric Engineering Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257547 ;
Abstract
A semiconductor integrated circuit device for driving a motor and including a p-type semiconductor substrate having spaced apart first and second areas; power transistors in the semiconductor substrate within the first area; a small signal system circuit in the semiconductor substrate within the second area; and an n-type isolating region in the semiconductor substrate separated from the first and second areas and disposed at least partially between the first and second areas, the n-type isolating region being connected to ground.