PATENT CLAIM ANALYSIS

Application Number: 15956139
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-07
Patent Classification: ["257", "324000"]

Abstract:
A three-dimensional NAND memory string includes an alternating stack of insulating layers and word line layers extending in a word line direction, a memory array region in the alternating stack containing memory stack structures, a group of more than two column stairs located in the alternating stack and extending in the word line direction from one side of the memory array region, and bit lines electrically contacting the vertical semiconductor channels and extending in a bit line direction which is perpendicular to the word line direction. Each column stair of the group of N column stairs has a respective step in a first vertical plane which extends in the bit line direction, and the respective steps in the first vertical plane decrease and then increase from one end column stair to another end column stair.

Claim (Index 10):
A three-dimensional memory device, comprising:\n an alternating stack of insulating layers and word line layers extending in a word line direction; a memory array region in the alternating stack containing memory stack structures, wherein each of the memory stack structures comprises a memory film and a vertical semiconductor channel; a group of N column stairs located in the alternating stack and extending in the word line direction from one side of the memory array region, wherein N is an integer greater than 2; and bit lines electrically contacting the vertical semiconductor channels and extending in a bit line direction which is perpendicular to the word line direction, wherein: the alternating stack containing the memory array region comprises a NAND memory string; each column stair of the group of N column stairs has a respective step in a first vertical plane which extends in the bit line direction; and the respective steps in the first vertical plane decrease and then increase from a first end column stair to a second end column stair.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 91.0
- Lexical Diversity: 2.27419
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15943859', '15717102', '15834261', '15628495', '15685254']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.934702584417308
- 35 USC 102 Novelty (BERT): 0.5276924868591689
- Combined Prediction Score: 0.8940015746614942
- Mean Citation Score: 356.93722599999984
- Max Citation Score: 362.49683
- Similarity Product: 317.62964719059937

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

Dataset: test