PATENT CLAIM ANALYSIS

Application Number: 16014103
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-12
Patent Classification: ["257", "213000"]

Abstract:
The present disclosure describes a fabrication method that can form air-gaps in shallow trench isolation structures (STI) structures. For example, the method includes patterning a semiconductor layer over a substrate to form semiconductor islands and oxidizing the sidewall surfaces of the semiconductor islands to form first liners on the sidewall surfaces. Further, the method includes depositing a second liner over the first liners and the substrate and depositing a first dielectric layer between the semiconductor islands. The second liner between the first dielectric layer and the first liners is removed to form openings between the first dielectric layer and the first liners. A second dielectric layer is deposited over the first dielectric layer to enclose the openings and form air-gaps between the first dielectric layer and the first liners so that the gaps are positioned along the first liners.

Claim (Index 20):
The method of  claim 16 , wherein the second liner comprises silicon nitride.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 94.0
- Lexical Diversity: 2.59649
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13092037', '15397427', '12125864', '14592069', '15892228']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9190662430490172
- 35 USC 102 Novelty (BERT): 0.490275584722614
- Combined Prediction Score: 0.8761871772163767
- Mean Citation Score: 176.827662
- Max Citation Score: 179.94718999999995
- Similarity Product: 118.9735180666506

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