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. 14, 2009
Filed:
Aug. 10, 2006
Applicant:
Robert G. Meyer, Berkeley, CA (US);
Inventor:
Robert G. Meyer, Berkeley, CA (US);
Assignee:
Maxim Integrated Products, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ESD protection device has a multi-stage RC-timed architecture to turn on quickly and sink current for a relatively long time period. For example, a high power voltage clamp and a low power voltage clamp coupled in parallel to protect internal circuitry of an integrated circuit. The high power clamp turns on during the first few microseconds of an ESD event, and sinks current for a brief period of time, during which the low power clamp turns on as well. Once the high power clamp turns off, the low power clamp continues to sink current until a safe level is reached.