PATENT CLAIM ANALYSIS

Application Number: 15961621
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["257", "506000"]

Abstract:
Semiconductor structure and fabrication method are provided. The method includes: providing a substrate including device regions and isolation regions, adjacent with one another; providing discrete fins on the substrate, pitches between adjacent fins being substantially same; forming a protective layer on the sidewalls of the fins; removing a partial thickness of the fins in the isolation regions along with a partial thickness of the protective layer in the isolation regions by a first etching process; forming dummy fins by a second etching process to etch the remaining fins in the isolation regions using the remaining protective layers as a mask; removing the remaining protective layer after the second etching process; and forming isolation structures in the isolation regions on the substrate. The isolation structures have a top lower than the fins in the device regions and higher than the dummy fins in the isolation regions.

Claim (Index 7):
The fabrication method according to  claim 1 , wherein:\n the second etching process is the plasma dry etching process, and wherein: an etching gas includes 02, CF 4 , HBr, Cl 2 , or a combination thereof; a process time is about 30 s to about 300 s; a process pressure is about 3 mTorr to about 12 mTorr; a source power is about 200 W to about 800 W; and a bias power is about 150 W to about 500 W.

Metadata:
- Claim Count in Document: 12.0
- Percentile: 91.0
- Lexical Diversity: 2.49206
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14083571', '13474443', '15224128', '15489782', '14984201']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.90917434444384
- 35 USC 102 Novelty (BERT): 0.5163223012694713
- Combined Prediction Score: 0.8698891401264033
- Mean Citation Score: 211.009328
- Max Citation Score: 214.64944
- Similarity Product: 122.46508310934068

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