Multi-time programmable device

Abstract

Devices and methods for forming a device are presented. The device includes a substrate having a device region and first and second isolation regions surrounding the device region. The device includes a multi-time programmable (MTP) memory cell having a single transistor disposed on the device region. The transistor includes a gate having a gate electrode over a gate dielectric which includes a programmable resistive layer. The gate dielectric is disposed over a channel region having first and second sub-regions in the substrate. The gate dielectric disposed above the first and second sub-regions has different characteristics such that when the memory cell is programmed, a portion of the programmable resistive layer above one of the first or second sub-region is more susceptible for programming relative to portion of the programmable resistive above the other first or second sub-region.