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. 19, 2005
Filed:
May. 08, 2003
Masanori Miyagi, Chiba, JP;
Masanori Miyagi, Chiba, JP;
Seiko Instruments Inc., Chiba, JP;
Abstract
A latch circuit is configured so that even if a power-on-reset circuit is not operated in putting a power supply to work, a depletion type MIS transistor is connected as a pull-down element to an output terminal of an RS latch to thereby reliably activate the RS latch in a reset state, whereby a circuit or a semiconductor integrated circuit device is prevented from being unintendedly operated. Furthermore, channel impurities of the depletion type MIS transistor are introduced into only a part, whereby it is possible to realize a semiconductor integrated circuit device which is excellent in safety and which is readily operated with less current consumption and with low cost.