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:
Dec. 09, 1986
Filed:
May. 22, 1985
Applicant:
Inventor:
Horst Leuschner, Phoenix, AZ (US);
Assignee:
SGS Semiconductor Corporation, Phoenix, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
3072 / ; 307304 ;
Abstract
The invention comprises an improved back bias generator for an integrated circuit wherein a transistor circuit first acts as an isolation device during the charging phase of a charge pump capacitor and acts as a coupling device during a discharge phase of the capacitor, thus providing a higher back bias voltage than is available from prior art circuits and wherein the charge pump capacitor is oriented in the circuit so that its source/drain terminal cannot conduct to the substrate by way of the parasitic diode therebetween.