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. 02, 2010
Filed:
Mar. 14, 2008
Jung Eon Moon, Gyeonggi-do, KR;
Jung Eon Moon, Gyeonggi-do, KR;
Hynix Semiconductor Inc., Kyoungki-do, KR;
Abstract
A circuit for protecting a semiconductor device from electrostatic discharge by protecting an internal circuit from electrostatic current flowing into an input/output pad includes a first discharge unit that discharges the electrostatic current to a first power supply line or a second power supply line. A second discharge unit protects the internal circuit from electrostaticity flowing from the input/output pad or the second power supply line. A power clamp unit discharges the electrostatic current, which is discharged to the first power supply line or the second power supply line by the first discharge unit, to the opposite power supply line. A trigger unit drives the first discharge unit and the power clamp unit with first and second detection voltages generated in response to a voltage drop of the discharged electrostatic current.