PATENT CLAIM ANALYSIS

Application Number: 15884304
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["257", "506000"]

Abstract:
In a method for fabricating a semiconductor device, a trench is etched in a semiconductor substrate having a top surface, and a lining oxide layer is formed conformal to the trench. A negatively-charged liner covering the lining oxide layer and conformal to the trench is formed. The trench is partially filled with a flowable oxide to a level below the top surface of the semiconductor substrate, and the flowable oxide in the trench is cured. The negatively-charged liner above the cured flowable oxide is optionally removed. A silicon oxide is deposited in the remaining portion of the trench, and a planarization process is performed to remove excess portions of the silicon oxide over the top surface of the semiconductor substrate.

Claim (Index 10):
A method for fabricating a semiconductor device, the method comprising:\n providing a semiconductor substrate; sequentially forming a pad oxide layer, a silicon nitride layer and a silicon-rich oxide (SRO) layer on the semiconductor substrate; etching a trench in a semiconductor substrate having a top surface; forming a lining oxide layer that is conformal to the trench and adjoins the pad oxide layer; forming a negatively-charged silicon nitride that is conformal to the trench and covers the lining oxide layer, the silicon nitride layer and the SRO layer; forming a high-K dielectric liner that is conformal to the trench and covers the negative charge liner; partially filling the trench with a flowable oxide to a level below the top surface of the semi conductor substrate; curing the flowable oxide in the trench; depositing a silicon oxide in the remaining portion of the trench; and performing a planarization process to remove excess portions of the silicon oxide, the SRO layer, the silicon nitride layer and the pad oxide layer over the top surface of the semi conductor substrate.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 86.0
- Lexical Diversity: 2.48077
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13930189', '13938948', '13222698', '12164579', '10996319']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9203994463051214
- 35 USC 102 Novelty (BERT): 0.5072080113699514
- Combined Prediction Score: 0.8790803028116044
- Mean Citation Score: 227.981708
- Max Citation Score: 281.7122
- Similarity Product: 214.23956291818607

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

Dataset: test