Patent ID: 7075127

Claim:
An electrically programmable transistor fuse having a substrate of semiconductor material of a first conductivity type, a source region and drain region disposed in said substrate and spaced apart to define a substantially continuous channel region of monolithic substrate material therebetween, and a layer of insulating material having a uniform thickness and disposed over said source region, drain region and channel region, said electrically programmable transistor fuse comprising: a first gate and a second gate disposed in a single layer of polysilicon over said insulating material, said first gate disposed overlapping a portion of said source region and said second gate electrically isolated from said first gate and disposed overlapping a portion of said drain region, wherein said first gate includes a terminal for receiving an externally applied signal and said second gate is capacitively coupled to said drain region; and a coupling device disposed within said substrate and adapted to increase capacitive coupling of said second gate and said drain region, wherein programming is effectuated by charging said second gate via capacitive coupling with said drain region.