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:
Jul. 01, 2003
Filed:
Dec. 13, 2001
Applicant:
Inventor:
Yoshihiro Shibuya, Chiba, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/289 ;
U.S. Cl.
CPC ...
H03K 3/289 ;
Abstract
It is intended to provide a dynamic flip flop that prevents a floating signal from maintaining a voltage below a substrate voltage level in a P-type semiconductor substrate and that prevents a floating signal from maintaining a voltage exceeding the substrate voltage level in an N-type semiconductor substrate. In the dynamic flip flop, an N-type MOSFET ( ) controlled by an output signal MX from an inverter ( ) and an N-type MOSFET ( ) controlled by an output signal Q from an inverter ( ) are provided as switches for short-circuiting a signal M and a signal QX to be brought into a floating state to a substrate.