PATENT CLAIM ANALYSIS

Application Number: 15877219
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["257", "316000"]

Abstract:
A three-dimensional memory device includes semiconductor devices located on a semiconductor substrate, lower interconnect level dielectric layers embedding lower interconnect structures, an alternating stack of insulating layers and electrically conductive layers overlying the lower interconnect level dielectric layers and including stepped surfaces, memory stack structures vertically extending through the alternating stack, and contact via structures extending downward from the stepped surfaces through underlying portions of the alternating stack to the lower interconnect structures. Each of the contact via structures laterally contacts an electrically conductive layer located at the stepped surfaces, and provides electrical interconnection to an underlying semiconductor device. A top portion of each contact via structures contacts an electrically conductive layer, and is electrically isolated from other underlying electrically conductive layers.

Claim (Index 19):
The method of  claim 13 , further comprising:\n forming a retro-stepped dielectric material portion over the stepped surfaces in the word line contact region after formation of the contact via structures; forming an additional alternating stack of additional insulating layers and additional sacrificial material layers over the retro-stepped dielectric material portion; patterning the additional alternating stack to form additional stepped surfaces, wherein the memory stack structures are formed through the additional alternating stack and the alternating stack; replacing the additional sacrificial material layers with additional electrically conductive layers concurrently with replacement of the sacrificial material layers with the electrically conductive layers; and forming additional contact via structures on top surfaces of the additional electrically conductive layers.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 86.0
- Lexical Diversity: 2.29825
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15489050', '15269294', '15632983', '15269041', '15638672']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9421107705139798
- 35 USC 102 Novelty (BERT): 0.5508362786672958
- Combined Prediction Score: 0.9029833213293116
- Mean Citation Score: 437.393132
- Max Citation Score: 450.66562000000016
- Similarity Product: 308.1592601496232

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