PATENT CLAIM ANALYSIS

Application Number: 15770020
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["257", "296000"]

Abstract:
A three-dimensional semiconductor device includes: A peripheral circuit, distributed on a substrate; a plurality of memory cells above the peripheral circuit, each of which includes: a common source region, between the memory cell and the peripheral circuit; a channel layer, distributed in a direction perpendicular to the surface of the substrate; at least one substrate contact layer, extending horizontally from the central portion of the channel layer parallel to the surface of the substrate, each comprising at least one substrate contact region; a plurality of insulating layers, located on sidewalls of the channel layer; a plurality of control gates, sandwiched between adjacent insulating layers; a gate dielectric layer, located between the channel layer and the control gates; a drain region, located at top of the channel layer; a substrate contact lead-out line, electrically connected to the substrate contact regions; and a bit line wiring, electrically connected to the drain region of each memory cell and the peripheral circuit. The substrate contact regions are formed in the middle of the memory strings, improving the erase/write performance and reliability of the memory, increasing the density of the storage array, reducing the entire memory chip area and saving the costs.

Claim (Index 12):
The three-dimensional semiconductor device manufacturing method according to  claim 6 , wherein step (g) or (g2) further comprises:\n selectively etching to remove the second material layers to leave lateral recesses between the remaining first material layers, forming a floating gate in each of the lateral recesses; forming an insulating layer and/or a gate dielectric layer on each floating gate; and forming a control gate on the insulating layer and/or the gate dielectric layer in each of the lateral recesses.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 91.0
- Lexical Diversity: 2.64706
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15503833', '15306225', '15311000', '15211401', '13669021']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9119273365004514
- 35 USC 102 Novelty (BERT): 0.5083279491906951
- Combined Prediction Score: 0.8715673977694759
- Mean Citation Score: 227.289328
- Max Citation Score: 249.8829
- Similarity Product: 179.01191621639728

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

Dataset: test