PATENT CLAIM ANALYSIS

Application Number: 15870603
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-11
Patent Classification: ["438", "745000"]

Abstract:
A semi-aqueous wet clean system and method for removing carbon-containing silicon material (e.g., plasma residue) or nitrogen-containing silicon material (e.g., plasma residue) includes a hydroxyl-terminated organic compound, a diol, and a fluoride ion donor material. The system is configured to protect silicon oxide and amorphous silicon during a post-dry-etch wet clean. The wet clean system is configured to selectively remove carbon-containing or nitrogen-containing plasma residue. pH of the wet clean system can be modified to tune selectivity for removal of carbon-containing or nitrogen-containing plasma residues. As a result, positive TEOS recession of less than about 3 nanometers may be achieved. Additionally, the wet clean system can be adapted for reclamation and subsequent reuse.

Claim (Index 11):
A method for use in semiconductor device manufacture, the method comprising: etching a semiconductor device layer, wherein the etching produces at least one of a carbon-containing silicon residue or a nitrogen-containing silicon residue; and\n after etching the semiconductor device layer, cleaning the semiconductor device layer to at least partially remove at least one of the carbon-containing silicon residue or the nitrogen-containing silicon residue with a cleaning system comprising:\n water; \n a hydroxyl-terminated organic material; \n a diol; and \n a fluoride ion donor material.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 86.0
- Lexical Diversity: 1.89706
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14976737', '15800777', '15796398', '12203448', '15466420']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8379189780936906
- 35 USC 102 Novelty (BERT): 0.4509930580934286
- Combined Prediction Score: 0.7992263860936645
- Mean Citation Score: 120.47803600000002
- Max Citation Score: 128.79935
- Similarity Product: 103.0148152074814

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

Dataset: test