PATENT CLAIM ANALYSIS

Application Number: 16142112
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["257", "421000"]

Abstract:
A magnetoresistance effect element has a first ferromagnetic metal layer, a second ferromagnetic metal layer, and a tunnel barrier layer that is sandwiched between the first and second ferromagnetic metal layers, and the tunnel barrier layer has a spinel structure in which cations are disordered, and contains a divalent cation of a non-magnetic element, a trivalent cation of a non-magnetic element, oxygen, and one of nitrogen and fluorine.

Claim (Index 25):
A method of manufacturing a tunnel barrier layer, the method comprising the steps of:\n forming an under layer on a substrate provided with a thermal silicon oxide film using a magnetron sputtering method; forming a first ferromagnetic metal layer on the under layer, forming a tunnel barrier layer on the first ferromagnetic layer; and forming a second ferromagnetic metal layer on the tunnel barrier layer, wherein, the step of forming the tunnel barrier layer comprises the steps of:\n forming a film of Mg 0.9 Al 2  by sputtering with a target having an alloy composition of Mg 0.9 Al 2  to obtain an intermediate laminate; \n performing plasma nitridation on the intermediate laminate in a presence of Ar and nitrogen); \n performing natural oxidation on the intermediate laminate in a presence of Ar, oxygen and nitrogen in ultrahigh vacuum condition in a state in which the substrate is heated after plasma nitridation; and \n performing natural oxidation and inductively coupled plasma oxidation in a presence of Ar and oxygen, and wherein \n the tunnel barrier layer has a spinel structure in which cations are disordered, contains a divalent cation of a non-magnetic element, a trivalent cation of a non-magnetic element, oxygen, and one of nitrogen and fluorine, and has a lattice-matched portion that is lattice-matched with both of the first ferromagnetic metal layer and the second ferromagnetic metal layer, and a lattice-mismatched portion that is not lattice-matched with at least one of the first ferromagnetic metal layer and the second ferromagnetic metal layer.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 97.0
- Lexical Diversity: 1.94872
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15559195', '15554410', '15554089', '15556435', '15554066']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9443550826869264
- 35 USC 102 Novelty (BERT): 0.6106777106802448
- Combined Prediction Score: 0.9109873454862584
- Mean Citation Score: 568.1523199999998
- Max Citation Score: 631.003
- Similarity Product: 461.79772031730414

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