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 6):
The method of  claim 2 ,\n wherein when providing the semiconductor structure, recesses are formed on two sides of the fin structure on the first insulation layer,\n wherein the method of  claim 2  further comprises: \n before forming the groove, forming a sacrificial layer covering the channel layer and filling the recesses; and \n conducting a planarization process on the sacrificial layer to expose an upper surface of the channel layer, \n and wherein the method of  claim 2  further comprises: after the second gate layer is formed, removing the sacrificial layer.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 90.0
- Lexical Diversity: 2.32812
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15797884', '15440541', '15001568', '13238284', '15671370']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9085454179530156
- 35 USC 102 Novelty (BERT): 0.4826796873343227
- Combined Prediction Score: 0.8659588448911464
- Mean Citation Score: 197.925816
- Max Citation Score: 215.048
- Similarity Product: 182.7939198670388

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