Patent ID: 9653679
Date: 2017-05-16
CPC Classifications: H01L

Claim:
1. A magnetorestrictive structure, comprising a pillar structure comprising a magnetic tunnel junction that comprises a reference magnetic layer, a tunnel barrier layer, and a free magnetic layer, and a hard mask layer above the magnetic tunnel junction, the pillar structure disposed on a substrate comprising a first electrode wherein the pillar structure further comprises an electrically non-conductive sidewall layer over the magnetic tunnel junction; an interlayer dielectric around the pillar structure and a trench in the interlayer dielectric adjacent to a sidewall of the pillar structure; a stressed electrically conductive layer on the sidewall of the pillar structure, wherein the stressed electrically conductive layer covers and extends below the hard mask layer without covering a side of the magnetic tunnel junction, the stressed electrically conductive layer being in direct contact with sides of the electrically non-conductive sidewall layer; and a second electrode disposed in the trench and above the hard mask layer.