PATENT CLAIM ANALYSIS

Application Number: 16117947
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["257", "004000"]

Abstract:
Two phase-change memory cells are formed from a first conductive via, a second conductive and a central conductive via positioned between the first and second conductive vias where a layer of phase-change material is electrically connected to the first and second conductive vias by corresponding resistive elements and insulated from the central conductive via by an insulating layer. The conductive vias each include a lower portion made of a first metal (such as tungsten) and an upper portion made of a second metal (such as copper). Drains of two transistors are coupled to the first and second conductive vias while sources of those two transistors are coupled to the central conductive via.

Claim (Index 1):
A method of manufacturing a phase-change memory, comprising:\n forming in a first dielectric layer a first row of first conductive vias, a second row of second conductive vias and a central conductive via formed by an elongated conductive strip that extends parallel to the first and second rows and is positioned between the first and second rows, the first and second conductive vias and the central conductive via all being made of a first metal material; removing the first metal from an upper portion of each of the first conductive via, the second conductive via and the central conductive via to form corresponding via openings; filling each of the via openings with a second metal material different from the first metal material; forming a second dielectric layer; etching in the second dielectric layer a cavity that extends from the first row to the second row, said cavity at least partially exposing an upper end of the second metal material for each of the first conductive via and second conductive vias and exposing an upper end of the second metal material for the central conductive via; depositing a layer of resistive material; removing a portion of the layer of resistive material over the upper end of the second metal material for the central conductive via so as to leave in place other portions of the layer of resistive material, said other portions being in contact with the upper ends of the second metal material of the first conductive via and second conductive via and extending along a sidewall of the cavity; filling the cavity with a third dielectric layer; and depositing a layer of phase-change material that is in contact with upper ends of the other portions of the layer of resistive material extending along the sidewall of the cavity.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 96.0
- Lexical Diversity: 2.14286
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14583180', '12025333', '15374304', '10902508', '14195932']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.912779016435646
- 35 USC 102 Novelty (BERT): 0.4587907314654431
- Combined Prediction Score: 0.8673801879386257
- Mean Citation Score: 177.918702
- Max Citation Score: 179.28076
- Similarity Product: 153.48109795201773

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