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. 20, 2007
Filed:
May. 27, 2004
Meng-huang Liu, Hsinchu, TW;
Chun-hsiang Lai, Taichung, TW;
Shin Su, Banchiau, TW;
Yen-hung Yeh, Yangmei Township, Taoyuan County, TW;
Chia-ling LU, Lujhou, TW;
Tao-cheng LU, Kaohsiung, TW;
Meng-Huang Liu, Hsinchu, TW;
Chun-Hsiang Lai, Taichung, TW;
Shin Su, Banchiau, TW;
Yen-Hung Yeh, Yangmei Township, Taoyuan County, TW;
Chia-Ling Lu, Lujhou, TW;
Tao-Cheng Lu, Kaohsiung, TW;
Macronix International Co., Ltd., Hsinchu, TW;
Abstract
In an ESD protection structure and method utilizing substrate triggering for a high-voltage tolerant pad on a substrate, an ESD protection device has a source connected to the pad and a gate and a drain both connected to a ground, and a substrate-triggering control circuit is used to keep the substrate at a low voltage during a normal operation, and pumping the substrate to a high voltage during an ESD event for the ESD protection device to be triggered much easier. The substrate-triggering control circuit is implemented with an active device, thereby reducing the chip size for the circuit and the loading effect on the pad.