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:
Apr. 07, 2008
Filed:
Apr. 23, 2003
Leonardo Fragapane, Catania, IT;
Leonardo Fragapane, Catania, IT;
STMicroelectronics S.r.l., , IT;
Abstract
A device including an IGBT a formed on a chip of silicon consisting of a P type substrate with an N type epitaxial layer that contains a first P type region and a termination structure, and having a first P type termination region that surrounds the first region, a first electrode in contact with the first termination region, and a second electrode shaped in the form of a frame close to the edge of the chip and connected to a third electrode in contact with the bottom of the chip. A fourth electrode made in one piece with the first electrode is in contact with the first region. The termination structure also comprises a fifth electrode in contact with the epitaxial layer along a path parallel to the edge of the first termination region and connected to the second electrode and a second P type termination region that surrounds the fifth electrode and a sixth electrode, and which is in contact with the second termination region, connected to the first electrode.