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:
May. 31, 2005
Filed:
Jan. 22, 2003
James W. Miller, Austin, TX (US);
Michael G. Khazhinsky, Austin, TX (US);
Michael Stockinger, Austin, TX (US);
James W. Miller, Austin, TX (US);
Michael G. Khazhinsky, Austin, TX (US);
Michael Stockinger, Austin, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
An ESD protection circuit () and a method for providing ESD protection is provided. In some embodiments, an N-channel transistor (), which can be ESD damaged, is selectively turned on and made conducting. The purpose of turning on the N-channel transistor () is to maximize the Vt1 of the N-channel transistor (). Vt1 is the drain-to-source voltage point at which the parasitic bipolar action of the N-channel transistor () first occurs. In some embodiments, the ESD protection circuit () includes a diode () which provides an additional current path from the I/O padto a first power supply node ().