PATENT CLAIM ANALYSIS

Application Number: 16127231
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["257", "427000"]

Abstract:
A magnetic tunnel junction device includes a pinned magnetic layer, a free magnetic layer embodied as a synthetic antiferromagnetic device, and a nonmagnetic barrier layer sandwiched between the pinned magnetic layer and the free magnetic layer. The free magnetic layer includes a first ferromagnetic layer, a second ferromagnetic layer and a nonmagnetic spacing layer sandwiched between them; and can transform from the antiferromagnetic state to the ferromagnetic state regulated by electric field. Under the coaction of the electric field and the current, the ferromagnetic layer close to the barrier layer of the magnetic tunnel junction is switched to write in data. Also, a magnetic random access memory based on a synthetic antiferromagnetic free layer can write in data under the coaction of the electric field and the current, and has advantages such as simple structure, low power consumption, rapid speed, radiation resistant, and non-volatility.

Claim (Index 7):
The magnetic tunnel junction device, as recited in  claim 5 , wherein:\n the pinned magnetic layer is made from Fe, Co, Ni, Mn, NiFe, FePd, FePt, CoFe, CoPd, CoPt, YCo, LaCo, PrCo, NdCo, SmCo, CoFeB, BiMn or NiMnSb, or a composite material of one of Fe, Co, Ni, Mn, NiFe, FePd, FePt, CoFe, CoPd, CoPt, YCo, LaCo, PrCo, NdCo, SmCo, CoFeB, BiMn and NiMnSb, and at least one of B, Al, Zr, Hf, Nb, Ta, Cr, Mo, Pd and Pt; or the pinned magnetic layer is a synthetic multilayer structure which is made from Co/Ir, Co/Pt, Co/Pd, CoCr/Pt, Co/Au or Ni/Co multilayer and stacked by 3d/4d/4f/5d/5f/rare earth metal layer; or the pinned magnetic layer is made from a Heusler alloy in a form of XYZ or X 2 YZ, wherein X is at least one member selected from a group consisting of Mn, Fe, Co, Ni, Pd and Cu; Y is at least one member selected from a group consisting of Ti, V, Cr, Mn, Fe, Co and Ni; Z is at least one member selected from a group consisting of Al, Ga, In, Si, Ge, Sn and Sb; or the pinned magnetic layer is made from a synthetic antiferromagnetic material and comprises two ferromagnetic layers and a spacing layer; every ferromagnetic layer of the pinned magnetic layer is made from Fe, Co, CoFe, Ni, CoCrPt, CoFeB, (Co/Ni) p , (Co/Pd) m  or (Co/Pt) n , wherein m, n and p refer to a repeat time of stacked multi-layer; the spacing layer of the pinned magnetic layer is made from at least one member selected from a group consisting of Nb, Ta, Cr, Mo, W, Re, Ru, Os, Rh, Ir, Pt, Cu, Ag and Au.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 97.0
- Lexical Diversity: 2.33824
- Patent Class: 257.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13452166', '15655212', '16100484', '15639662', '10298868']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9404905905309264
- 35 USC 102 Novelty (BERT): 0.5428629228003707
- Combined Prediction Score: 0.900727823757871
- Mean Citation Score: 379.667852
- Max Citation Score: 387.54855
- Similarity Product: 297.11066217119685

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test