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:
May. 02, 2000
Filed:
Nov. 19, 1998
Natale Aiello, Catania, IT;
Atanasio La Barbera, Palermo, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
An integrated structure comprises a protective Zener diode connected between a first and a second terminal of the structure, and is formed in a chip of semiconductor material within an insulating region. The structure includes first and second biasing Zener diodes connected back-to-back between the first and the second terminals of the structure. The first and the second biasing diodes are disposed respectively in the opposite direction to and in the same direction as the protective diode, and having a common terminal connected to the insulating region. The protective diode has a reverse threshold voltage lower than a reverse threshold voltage of the second biasing diode.