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. 20, 2009
Filed:
Mar. 14, 2006
Applicant:
Sumio Koiwa, Chiba, JP;
Inventor:
Sumio Koiwa, Chiba, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device has a semiconductor circuit provided on a semiconductor substrate. The semiconductor circuit has a source, a drain, a gate and a wiring connected to one of the source, the drain and the gate. Conductors for electrostatic discharge protection are connected to one of a ground line and a power supply line and are disposed over a region of the semiconductor circuit not occupied by the wiring. A ratio of a total area of the conductors disposed over the semiconductor circuit to an area of a chip occupied by the semiconductor circuit is 40% or more.