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:
Jun. 12, 2012
Filed:
Oct. 13, 2008
Gernot Langguth, Oberhaching, DE;
Wolfgang Soldner, Unterhaching, DE;
Cornelius Christian Russ, Diedorf, DE;
Gernot Langguth, Oberhaching, DE;
Wolfgang Soldner, Unterhaching, DE;
Cornelius Christian Russ, Diedorf, DE;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A semiconductor device for protecting against an electro static discharge is disclosed. In one embodiment, the semiconductor device includes a first low doped region disposed in a substrate, a first heavily doped region disposed within the first low doped region, the first heavily doped region comprising a first conductivity type, and the first low doped region comprising a second conductivity type, the first and the second conductivity types being opposite, the first heavily doped region being coupled to a node to be protected. The semiconductor device further includes a second heavily doped region coupled to a first power supply potential node, the second heavily doped region being separated from the first heavily doped region by a portion of the first low doped region, and a second low doped region disposed adjacent the first low doped region, the second low doped region comprising the first conductivity type. A third heavily doped region is disposed in the second low doped region, the third heavily doped region comprising the second conductivity type and being coupled to a second power supply potential node.