PATENT CLAIM ANALYSIS

Application Number: 15894822
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["365", "163000"]

Abstract:
Phase change material can be set with a multistage set process. Set control logic can heat a phase change semiconductor material (PM) to a first temperature for a first period of time. The first temperature is configured to promote nucleation of a crystalline state of the PM. The control logic can increase the temperature to a second temperature for a second period of time. The second temperature is configured to promote crystal growth within the PM. The nucleation and growth of the crystal set the PM to the crystalline state. The multistage ramping up of the temperature can improve the efficiency of the set process relative to traditional approaches.

Claim (Index 21):
A memory device, comprising:\n a memory array including multiple memory cells of material that changes resistive state based on being in a crystalline state or a non-crystalline state, the memory cells having a thickness to cause a memory cell to be fully amorphized in all active areas of the memory cell in a non-crystalline state, and to lack sufficient crystal nuclei to promote crystal growth; and interface circuitry coupled to the memory array to control access to the memory cells, including control to change a memory cell from the non-crystalline state to the crystalline state, including application of a nucleation temperature for a first period of time to create crystal nuclei, application of a crystal growth temperature higher than the nucleation temperature for a second period of time to promote crystal growth, and application of a termination temperature lower than the crystal growth temperature for a third period of time to set the crystalline state.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 88.0
- Lexical Diversity: 2.45833
- Patent Class: 365.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14672130', '15442594', '15721388', '15154410', '14328536']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7509348970299697
- 35 USC 102 Novelty (BERT): 0.5166085284542722
- Combined Prediction Score: 0.7275022601723999
- Mean Citation Score: 209.366034
- Max Citation Score: 315.62408
- Similarity Product: 234.69536029622083

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