Patent ID: 9679645
Date: 2017-06-13
CPC Classifications: G11C

Claim:
1. A nonvolatile memory storage device, comprising: a storage transistor comprising a ferroelectric (FE) material coupled with a piezoresistive (PR) material through an inherent piezoelectric response of the FE material, wherein an electrical resistance of the PR material is dependent on a compressive stress applied thereto, the compressive stress caused by a remanent strain of the FE material resulting from a polarization of the FE material, such that a polarized state of the FE material results in a first resistance value of the PR material, and a depolarized state of the FE material results in a second resistance value of the PR material; and an access transistor comprising a second FE material, wherein the access transistor is formed in a single stack with the storage transistor and the second FE material is mechanically coupled to and electrically insulated from the first FE material.