Patent ID: 9251884
Filing Date: 2016-02-02
CPC Classification: G11C

Claim Text:
1. A multibit, nonvolatile memory storage device, comprising: a first ferroelectric (FE) material and a second FE material coupled with a piezoresistive (PR) material through an inherent piezoelectric response of the first FE material and second FE material, and arranged in a single stack, wherein an electrical resistance of the PR material is dependent upon on a compressive stress applied thereto, the compressive stress caused by a remanent strain of the first FE material and the second FE material resulting from a polarization of the first FE material and a polarization of the second FE material such that the PR material is set to assume one of a first resistance value, a second resistance value, a third resistance value of the PR material, and a fourth resistance value.