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:
Mar. 28, 2006
Filed:
Dec. 29, 1998
Christian Ballon, Tours, FR;
Christian Ballon, Tours, FR;
STMicroelectronics S.A., Gentilly, FR;
Abstract
The present invention relates to a monolithic component of protection of a line against overvoltages than a determined positive threshold or smaller than a determined negative threshold, including in antiparallel a cathode-gate thyristor (Th) and an anode-gate thyristor (Th), the gate of the cathode-gate thyristor being connected to a negative threshold voltage (−V) via a gate current amplification transistor (T), the gate of the anode-gate thyristor being connected to a positive threshold voltage (+V). The monolithic component is made in a substrate divided into wells separated by isolating walls (), the smaller surfaces of which are coated with insulating layers (), the smaller surface of the substrate being uniformly coated with a metallization (M).