PATENT CLAIM ANALYSIS

Application Number: 15909073
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["257", "296000"]

Abstract:
A three-dimensional memory device includes a first-tier structure containing a first alternating stack of first insulating layers and first electrically conductive layers that has first stepped surfaces, and a first retro-stepped dielectric material portion contacting the first stepped surfaces of the first alternating stack, and a second-tier structure containing a second alternating stack of second insulating layers and second electrically conductive layers that has second stepped surfaces, and a second retro-stepped dielectric material portion contacting the second stepped surfaces of the second alternating stack. The first retro-stepped dielectric material portion has a higher etch rate than the second retro-stepped dielectric material portion. Memory stack structures vertically extend through the first alternating stack and the second alternating stack. Each of the memory stack structures includes a memory film and a vertical semiconductor channel.

Claim (Index 16):
The method of  claim 15 , wherein top surfaces of the first and second electrically conductive layers are physically exposed at bottom regions of the contact via cavities.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 90.0
- Lexical Diversity: 2.95745
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15632983', '15877219', '15489050', '15269294', '15269041']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9412681364844848
- 35 USC 102 Novelty (BERT): 0.5701984637280313
- Combined Prediction Score: 0.9041611692088396
- Mean Citation Score: 466.246204
- Max Citation Score: 493.9883400000001
- Similarity Product: 335.22723674823766

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