PATENT CLAIM ANALYSIS

Application Number: 15739900
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["257", "004000"]

Abstract:
A phase change memory cell and a preparation method thereof. A phase change material layer having a thickness equal to the size of a single unit cell or a plurality of unit cells is adopted, the phase change material layer fundamentally expresses interfacial characteristics, and body material characteristics are weakened, such that a two-dimensional phase change memory cell storing information through change of interface resistance and having a high density, low power consumption and high speed is prepared. Since the phase change material layer according to the present invention is thin and there are a small number of defects on an interface of the phase change material layer, the operation power consumption of the phase change memory cell is reduced, the operation time of the phase change memory cell is shortened, the damage to a phase change material during each operation process is reduced, the element segregation effect on the material during each operation process is decreased, the maximum operability number of times of the phase change memory cell is increased, and therefore the capacity of circulating operation number of times of a device can be increased.

Claim (Index 13):
A preparation method of phase change memory cell, characterized in that the preparation method at least comprises the following steps:\n 1) providing a Si substrate having a surface on which a second dielectric material is formed, and preparing an electrode pair on the second dielectric material layer, wherein a distance between the electrode pair is a first distance; 2) depositing a phase change material on a surface of the structure obtained in step 1) to form a phase change material layer having a first thickness; 3) photo-etching and etching the phase change material layer to form a phase change material layer having a width less than or equal to the width of the electrode pair; 4) depositing a third dielectric material layer on a surface of the structure obtained in step 3) and filling up the area between the electrode pair.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 93.0
- Lexical Diversity: 2.40964
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13202955', '13063782', '15964900', '13874411', '11398858']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9187087115899638
- 35 USC 102 Novelty (BERT): 0.4700792022445527
- Combined Prediction Score: 0.8738457606554227
- Mean Citation Score: 170.47754000000003
- Max Citation Score: 182.56432
- Similarity Product: 146.98457324169158

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