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:
Jan. 28, 2003
Filed:
Jun. 13, 2001
Applicant:
Inventor:
Tomio Takiguchi, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/18222 ;
U.S. Cl.
CPC ...
H01L 2/18222 ;
Abstract
A reference voltage supply circuit is provided with a PNP transistor. The PNP transistor has an N-type well for a base formed at a surface of a P-type semiconductor substrate. The reference voltage supply circuit is further provided with a resistor element connected to an emitter of the PNP transistor. The resistor element has an N-type well for a resistor at the surface of the P-type semiconductor substrate. The well is fabricated at the same time as when the N-type well for a base is fabricated.
Takiguchi, Tomio. (2003). Reference voltage supply circuit having reduced dispersion of an output voltage (U.S. Patent No. 6511889). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6511889
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile