PATENT CLAIM ANALYSIS

Application Number: 15994614
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["257", "401000"]

Abstract:
A method of reducing parasitic capacitance includes providing a starting semiconductor structure, the starting semiconductor structure including a semiconductor substrate with fin(s) thereon, the fin(s) having at least two dummy transistors integrated therewith and separated by a dielectric region, the dummy transistors including dummy gates with spacers and gate caps, the fin(s) having ends tucked by the dummy gates. The method further includes removing the dummy gates and gate caps, resulting in gate trenches, protecting area(s) of the structure during fabrication process(es) where source/drain parasitic capacitance may occur, and forming air-gaps at a bottom portion of unprotected gate trenches to reduce parasitic capacitance. The resulting semiconductor structure includes a semiconductor substrate with fin(s) thereon, FinFET(s) integral with the fin(s), the FinFET(s) including a gate electrode, a gate liner lining the gate electrode, and air-gap(s) in gate trench(es) of the FinFET(s), reducing parasitic capacitance by at least about 75 percent as compared to no air-gaps.

Claim (Index 16):
The semiconductor structure of  claim 15 , wherein the gate dielectric has a thickness of about 1 nm to about 10 nm.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 93.0
- Lexical Diversity: 2.62821
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15258333', '15219967', '15251435', '14878440', '14609171']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.923413734936354
- 35 USC 102 Novelty (BERT): 0.511217416265974
- Combined Prediction Score: 0.882194103069316
- Mean Citation Score: 225.72386
- Max Citation Score: 315.40378
- Similarity Product: 291.209198135116

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