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:
Sep. 30, 2014
Filed:
Mar. 14, 2013
Globalfoundries Singapore Pte. Ltd., Singapore, SG;
GLOBALFOUNDRIES Singapore Pte. Ltd., Singapore, SG;
Abstract
A device which includes a substrate defined with a device region with an ESD protection circuit having at least first and second transistors is disclosed. Each of the transistors includes a gate having first and second sides, a first diffusion region in the device region adjacent to the first side of the gate, a second diffusion region in the device region displaced away from the second side of the gate, and a drift isolation region disposed between the gate and the second diffusion region. A first device well encompasses the device region and a second device well is disposed within the first device well. The device also includes a drift well which encompasses the second diffusion region. Edges of the drift well do not extend below the gate and is away from a channel region. A drain well is disposed under the second diffusion region and within the drift well.