PATENT CLAIM ANALYSIS

Application Number: 16046679
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["257", "324000"]

Abstract:
Embodiments of through array contact structures of a 3D memory device and fabricating method thereof are disclosed. The method comprises: forming a recess region in a substrate including multiple protruding islands; forming a gate dielectric layer to cover top surfaces and sidewalls of the multiple protruding islands and a top surface of the recess region of the substrate; forming an underlying sacrificial layer on the gate dielectric layer to surround the sidewalls of the multiple protruding islands; forming an alternating dielectric stack including multiple alternatively stacked insulating layers and sacrificial layers on the underlying sacrificial layer and the multiple protruding islands; forming multiple channel holes penetrating the alternating dielectric stack, each channel hole is located corresponding to one of the multiple protruding islands; and forming a memory layer in each channel hole, wherein a channel layer of the memory layer is electrically connected with a corresponding protruding island.

Claim (Index 4):
The method of  claim 1 , wherein forming the underlying sacrificial layer on the gate dielectric layer to surround the sidewalls of the plurality of protruding islands comprises:\n filling the underlying sacrificial layer to bury the plurality of protruding islands; planarizing the underlying sacrificial layer; and removing a top portion of the underlying sacrificial layer, such that a top surface of the remaining underlying sacrificial layer is lower than the top surfaces of the plurality of protruding islands.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 95.0
- Lexical Diversity: 2.39394
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16046887', '14989206', '15895102', '15720306', '15458269']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.931301299903645
- 35 USC 102 Novelty (BERT): 0.5132509972106776
- Combined Prediction Score: 0.8894962696343482
- Mean Citation Score: 241.82268800000003
- Max Citation Score: 260.4621
- Similarity Product: 165.11033718250394

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