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:
Jun. 04, 1991
Filed:
Oct. 11, 1988
Applicant:
Inventors:
Assignee:
SGS-Thomson Microelectronics S.r.l., Agrate Brianza, IT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 48 ; 3072962 ; 357 86 ;
Abstract
The device for shielding the electrons injected towards the substrate by an epitaxial pocket which reaches a negative voltage with respect to said substrate, comprises a debiasing transistor arranged in reverse configuration (with collector and emitter swapped) in the same epitaxial pocket reaching a negative voltage. The transistor is connected with its emitter and its collector between the buried layer of the pocket reaching a negative voltage and the substrate, so as to debias the junction formed by the buried layer and the substrate.