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:
Aug. 22, 1995
Filed:
Nov. 20, 1992
Applicant:
Inventors:
Mario Paparo, San Giovanni la Punta, IT;
Natale Aiello, Catania, IT;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257552 ; 257566 ; 257577 ;
Abstract
An integrated bridge device includes at least two arms, each of which is formed of a first and second diode connected transistor in series. The device is formed in an N+ substrate, which forms a positive output terminal. N- and N type epitaxial layers are formed over the substrate, and P and P+ regions are formed therein for each of the aforesaid arms. An N type region is contained within the P and P+ regions, and in turn contains a P type region forming a negative potential output terminal. Also included in the N type region are N++ regions capable of minimizing the current gain of parasitic transistors formed within the device.