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. 09, 2005
Filed:
Dec. 19, 2002
Olivier Ladiray, Montlouis sur Loire, FR;
Olivier Ladiray, Montlouis sur Loire, FR;
STMicroelectronics S.A., Montrouge, FR;
Abstract
A monolithic bidirectional switch formed in an N-type semiconductor substrate, including, in a first area, a first vertical thyristor adjacent to a second vertical thyristor; a triggering area arranged on the front surface side, apart from the first area, including a P-type well in which is formed an N-type region; a first metallization covering the rear surface; a second metallization on the front surface layers of the first and second thyristors; a third gate metallization on said well; on the rear surface side, an additional P-type region and an insulating layer interposed between this additional region and the first metallization, the additional region extending under the triggering area; and a fourth metallization on the region.