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:
Nov. 10, 2009
Filed:
Apr. 13, 2007
Jung Eon Moon, Kyoungki-do, KR;
Dae Gwan Kang, Seoul, KR;
Kook Whee Kwak, Kyoungki-do, KR;
Nak Heon Choi, Kyoungki-do, KR;
SI Woo Lee, Kyoungki-do, KR;
Hee Jeong Son, Seoul, KR;
Suk Yun, Kyoungki-do, KR;
Seong Hoon Jeong, Kyoungki-do, KR;
Joon Won Lee, Kyoungdi-do, KR;
Jung Eon Moon, Kyoungki-do, KR;
Dae Gwan Kang, Seoul, KR;
Kook Whee Kwak, Kyoungki-do, KR;
Nak Heon Choi, Kyoungki-do, KR;
Si Woo Lee, Kyoungki-do, KR;
Hee Jeong Son, Seoul, KR;
Suk Yun, Kyoungki-do, KR;
Seong Hoon Jeong, Kyoungki-do, KR;
Joon Won Lee, Kyoungdi-do, KR;
Hynix Semiconductor Inc., Kyoungki-do, KR;
Abstract
An electrostatic discharge (ESD) protection circuit protects a gate oxide of elements in an internal circuit against ESD. During an ESD test, if the sum of driving voltages of ESD protectors connected between a power pad and a ground pad is higher than the gate oxide breakdown voltage of elements in the internal circuit, the structure of the ESD protector is changed or another ESD protector is additionally provided so as to protect the gate oxide of the elements in the internal circuit against ESD.