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. 20, 2005
Filed:
May. 14, 2001
Meng-huang Liu, Hsinchu, TW;
Chun-hsiang Lai, Taichung, TW;
Shin Su, Taipei, TW;
Tao-cheng LU, Kaohsiung, TW;
Meng-Huang Liu, Hsinchu, TW;
Chun-Hsiang Lai, Taichung, TW;
Shin Su, Taipei, TW;
Tao-Cheng Lu, Kaohsiung, TW;
Macronix International Co., Ltd., Hsinchu, TW;
Abstract
The present invention relates an electrostatic discharge (ESD) protection device that is applied to a mixed voltage circuit assembly. The device comprises a RC controlled circuit subassembly and a field transistor, which the RC controlled circuit is coupled with the mixed voltage circuit assembly to substantially control the ESD protection device to be ON or OFF. The field transistor is coupled between a first power supply and a second power supply of said mixed voltage circuit assembly, which is off on the condition of a normal operating condition and is conducting as an ESD event occurred.