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. 27, 2007
Filed:
Mar. 15, 2005
Yoshinori Arashima, Gamagoori, JP;
Hirofumi Abe, Gamagoori, JP;
Shigeki Takahashi, Okazaki, JP;
Denso Corporation, Kariya, JP;
Abstract
The semiconductor output circuit of the invention has an insulated gate transistor including a first terminal, a second terminal and a gate terminal, a conductive state of the insulated gate transistor being controlled by a drive circuit connected to the gate terminal, a capacitive element and a first resistor connected in series between the second terminal and the gate terminal, and a second resistor connected between the gate terminal and the first terminal. The insulated gate transistor has a cell area formed on a semiconductor substrate, in which a plurality of unit cells each defining a unit transistor connected between the first and second terminals are laid out. The second resistor has such a resistance that all of the unit transistors defined by the unit cells are turned on uniformly when electrostatic discharge is applied to the first or second terminal.