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. 04, 2006
Filed:
Apr. 27, 2004
Nils Jensen, München, DE;
Nils Jensen, München, DE;
Infineon Technologies AG, Munich, DE;
Abstract
An ESD protection structure for protecting an integrated circuit from electrostatic discharge, having a bipolar protection element, whose emitter is formed by an emitter zone of the first conduction type, whose collector is formed by a buried layer of the first conduction type, and whose base is formed by a base zone of the second conduction type disposed in-between. The base zone is spaced apart from the buried layer by an intermediate layer. Highly and lightly doped regions alternatively are provided in a section of the buried layer. The highly doped regions are spaced apart from one another by the lightly doped regions. A region with a reduced breakdown voltage of the protection element is disposed in a part of the protection element spaced apart from the section of the buried layer. Also provided is an integrated circuit having such an ESD protection structure.