PATENT CLAIM ANALYSIS

Application Number: 16157315
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-04
Patent Classification: ["365", "158000"]

Abstract:
Spin-orbit-torque (SOT) control strip lines are provided along the sides of free layers in perpendicular magnetic tunnel junction devices. Current flowing through such SOT control strip lines injects spin current into the free layers such that spin torque is applied to the free layers. The spin torque can be used to force the magnetic state of the free layer to a particular state based on the direction of the current through the SOT control strip line. In other embodiments, the SOT provides an assist to spin-transfer torque generated by current flowing vertically through the magnetic tunnel junction. Some embodiments have dedicated strip lines for a single magnetic tunnel junction such that a three-terminal device results. Other embodiments have multiple magnetic tunnel junctions sharing a strip line, where the strip line can be used to reset all of the magnetic tunnel junctions to the same state and can also be used as an assist such that individual magnetic tunnel junctions can be written using selection circuitry.

Claim (Index 18):
A spin-torque magnetic memory, comprising:\n a first plurality of magnetic tunnel junctions, wherein each magnetic tunnel junction includes:\n a free layer, wherein the free layer has a magnetic state, wherein an easy axis for the magnetic state of the free layer is perpendicular to a film plane in which the free layer is formed; \n a dielectric layer under the free layer; and \n a reference layer under the dielectric layer, the reference layer having a magnetic state perpendicular to the film plane; \n a first spin-orbit-torque control strip line that extends along a side surface of each of the free layers of the first plurality of magnetic tunnel junctions, wherein the side surface for each free layer is perpendicular to the film plane and current in the spin-orbit-torque control strip line causes a spin current in each of the free layers, wherein the spin current is parallel to the film plane; and selection circuitry coupled to the first plurality of magnetic tunnel junctions, wherein the selection circuitry allows at least one of the magnetic tunnel junctions in the first plurality of magnetic tunnel junctions to be selected to allow current flow through the at least one of the magnetic tunnel junctions selected.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 97.0
- Lexical Diversity: 2.10843
- Patent Class: 365.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15247791', '15692920', '15989190', '15185356', '15158658']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8031162626772979
- 35 USC 102 Novelty (BERT): 0.492994671563679
- Combined Prediction Score: 0.772104103565936
- Mean Citation Score: 244.374528
- Max Citation Score: 262.59888
- Similarity Product: 193.82244695860865

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test