PATENT CLAIM ANALYSIS

Application Number: 15919375
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["257", "211000"]

Abstract:
A 3-D flash memory device and its manufacturing method, relating to semiconductor technology. The manufacturing method comprises: providing a semiconductor structure comprising a substrate, a first insulation layer on the substrate, a fin structure comprising a first gate layer and a second insulation layer stacked alternately over each other on the first insulation layer, a third insulation layer on two sides of the fin structure, with the first gate layer being surrounded by the first, the second and the third insulation layers, and at least one channel layer covering the fin structure and the third insulation layer; and forming a groove by etching the channel layer, the second insulation layer and the first gate layer along an extension direction of the fin structure. This inventive concept improves the storage density of a 3-D flash memory device.

Claim (Index 11):
The method of  claim 1 , wherein providing the semiconductor structure comprises:\n providing a substrate structure comprising the substrate and the first insulation layer on the substrate; forming a multi-layer structure on the first insulation layer, wherein the multi-layer structure comprises a plurality of the first gate layers and a plurality of the second insulation layers stacked alternately over each other, with one of the first gate layers at the bottom of the multi-layer structure and one of the second insulation layers at the top of the multi-layer structure; forming the fin structure by etching the multi-layer structure; forming recesses on two sides of the fin structure exposing the first insulation layer; forming a third insulation layer on two sides of the fin structure; forming a channel material layer covering the fin structure, the third insulation layer, and the exposed first insulation layer; and forming at least one channel layer by etching the channel material layer.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 90.0
- Lexical Diversity: 2.32812
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15797884', '15440541', '15001568', '13238284', '15671370']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8980006994636739
- 35 USC 102 Novelty (BERT): 0.4823454962449034
- Combined Prediction Score: 0.8564351791417969
- Mean Citation Score: 197.925816
- Max Citation Score: 215.048
- Similarity Product: 179.3295343966484

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