Patent ID: 6087707
Filing Date: 2000-07-11
Classification: H01L

Abstract:
An antifuse cell for an integrated circuit, the antifuse cell comprising:an access device formed on a substrate, the access device having a first doped region;a field oxide region formed on the substrate adjacent the access device; andan antifuse formed on the substrate adjacent the field oxide region, the field oxide region being disposed between the access device and the antifuse, the antifuse having a second doped region, a third doped region, a programmable layer, and a conductive layer, the second doped region forming a bottom plate of the antifuse, the third doped region disposed beneath the entire second doped region and extending under the field oxide region and being coupled to the first doped region, the programmable layer being disposed over the second doped region and terminating above the field oxide region, and the conductive layer being disposed over the programmable layer.