PATENT CLAIM ANALYSIS

Application Number: 15936740
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["257", "618000"]

Abstract:
Methods for gapfilling semiconductor device features, such as high aspect ratio trenches, with amorphous silicon (a-Si) film that involves pretreating the surface of the substrate to modify the underlying hydroxy-terminated silicon (Si—OH) or hydrogen-terminated silicon (Si—H) surface to oxynitride-terminated silicon (Si—ON) or nitride-terminated silicon (Si—N) and enhance the subsequent a-Si deposition are provided. First, a substrate having features formed in a first surface of the substrate is provided. The surface of the substrate is then pretreated to enhance the surface of the substrate for the flowable deposition of amorphous silicon that follows. A flowable deposition process is then performed to deposit a flowable silicon layer over the surface of the substrate. Methods described herein generally improve overall etch selectivity by the conformal silicon deposition and the flowable silicon deposition process to realize seam-free gapfilling between features with high quality amorphous silicon film.

Claim (Index 2):
The method of  claim 1 , wherein the inert gas comprises one or more of helium and argon.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 90.0
- Lexical Diversity: 2.07792
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15936751', '14268098', '13031077', '12508461', '11323812']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9023630654880256
- 35 USC 102 Novelty (BERT): 0.5268453854182751
- Combined Prediction Score: 0.8648112974810505
- Mean Citation Score: 204.693722
- Max Citation Score: 288.8591600000001
- Similarity Product: 176.03246921106822

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

Dataset: test