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:
Nov. 22, 2005
Filed:
Oct. 11, 2001
Gérard Auriel, Chanceaux, FR;
Gérard Auriel, Chanceaux, FR;
STMicroelectronics S.A., Montrouge, FR;
Abstract
The invention concerns a vertical component with a four-layered structure comprising a thick lightly-doped zone () of a first type of conductivity providing the component voltage strength, enclosed with a peripheral wall () of a second type of conductivity extending vertically from one surface to the other of the component, and highly doped layer () of the second type of conductivity extending over the entire rear surface of the component. A lightly-doped layer () of the second type of conductivity extends over the entire surface of the component at the interface between the lightly-doped thick zone of the first type of conductivity and the highly-doped layer of the second type of conductivity.