PATENT CLAIM ANALYSIS

Application Number: 16052401
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["438", "257000"]

Abstract:
Methods and apparatuses for selectively depositing silicon nitride (SiN) via high-density plasma chemical vapor deposition (HDP CVD) to form a SiN pad on an exposed flat surface of a nitride layer in a 3D NAND staircase structure with alternating oxide and nitride layers are provided. In some embodiments, selective etching is performed to remove undesirable buildup of SiN on sidewalls of the oxide layers of the staircase structure. Nitride layers of the staircase structure are replaced with tungsten (W) to form tungsten wordlines, while the SiN pads are replaced with tungsten to from landing pads, which prevent punchthrough of the tungsten wordlines on the staircase structure by interconnects extending thereto.

Claim (Index 14):
The method of  claim 10 , wherein the vias have varying depths.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 96.0
- Lexical Diversity: 1.71831
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15972554', '15408291', '15894635', '12122614', '14803578']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.871400281227314
- 35 USC 102 Novelty (BERT): 0.5164004454338212
- Combined Prediction Score: 0.8359002976479648
- Mean Citation Score: 244.015214
- Max Citation Score: 286.54504
- Similarity Product: 191.17044223316188

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

Dataset: test