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:
Mar. 25, 2008
Filed:
Jun. 06, 2006
Applicants:
Gianluca Boselli, Farmers Branch, TX (US);
Charvaka Duvvury, Plano, TX (US);
Inventors:
Gianluca Boselli, Farmers Branch, TX (US);
Charvaka Duvvury, Plano, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor dual guardring arrangement is provided which is useful during electrostatic discharge (ESD) events as well as during normal operating conditions. In particular, an inner guard that is located closer to an active area provides desirable performance during normal operating conditions, while an outer guardring located further from the active area provides desirable performance during an ESD event.