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. 21, 2000
Filed:
Jun. 29, 1999
Young-Hee Kim, Pahang-Shi, KR;
Kie-Bong Ku, Yicheon-Shi, KR;
Hyundai Electronics Industries, Yicheon-shi, KR;
Abstract
An anti-fuse programming circuit comprising an operation switching part for precharging the anti-fuse programming circuit with a half voltage to operate it, an anti-fuse connected to the operation switching part, the anti-fuse being subjected to a dielectric breakdown when it is supplied with an overcurrent, a sense signal input part for inputting a sense signal to verify a programmed state of the anti-fuse, a breakdown voltage supply part for supplying a source voltage for the dielectric breakdown of the anti-fuse, an output part for outputting a signal indicative of the programmed state of the anti-fuse in response to the sense signal inputted by the sense signal input part, a current blocking part for blocking a current path from the breakdown voltage supply part to the anti-fuse in response to a control signal from the output part, and a latch part for strongly stabilizing the anti-fuse at the level of the half voltage in response to the control signal from the output part. According to the present invention, the programmed state of the anti-fuse can be verified and current consumption can significantly be reduced in programming the anti-fuse.