Patent ID: 7687883
Filing Date: 2010-03-30
Classification: H01L

Abstract:
1. An antifuse device operable at a voltage thereacross, comprising: (a) a first element having a first conductive region, a second conductive region and a tunneling region located between said first and second conductive regions, said tunneling region operatively configured so that in an unprogrammed state a tunneling current is present between said first and second conductive regions of said first element when the voltage is applied across the antifuse device, and that in a programmed state said tunneling region is conductive between said first and second conductive regions when the voltage is applied across the antifuse device; (b) a second element having a first conductive region, a second conductive region and a tunneling region located between said first and second conductive regions, said tunneling region operatively configured so that in an unprogrammed state a tunneling current is present between said first and second conductive regions of said second element when the voltage is applied across the antifuse device, and that in a programmed state said tunneling region is conductive between said first and second conductive regions when the voltage is applied across the antifuse device; and (c) an output node electrically coupled between said first element and said second element.