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:
Jun. 17, 1997
Filed:
Sep. 12, 1995
Applicant:
Inventors:
Woo Bong Lee, Kyoungkido, KR;
Taek Ki Hong, Kyoungkido, KR;
Tae Jung Yeo, Kyoungkido, KR;
Jae Wan Koh, Kyoungkido, KR;
Se Jeong Kim, Kyoungkido, KR;
Assignee:
Hyundai Electronics Industries Co., Ltd., Kyoungkido, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257355 ; 257356 ; 257357 ; 257358 ; 257360 ; 361 90 ; 361 91 ;
Abstract
The present invention discloses a high voltage cut-off semiconductor device that can prevent unstable supply voltage of several volts that is not cut off by a conventional electrostatic discharge protection circuit from being applied to an internal circuit and apply only stable supply voltage to the internal circuit, thereby enhancing the characteristics of the semiconductor device and shortening the channel length of the transistors forming the internal circuit by suing a constant voltage circuit having a zener diode.