PATENT CLAIM ANALYSIS

Application Number: 15993922
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["257", "192000"]

Abstract:
A method can be used for fabricating first and second semiconductor regions separated by isolating trenches. A semiconductor substrate is covered with silicon nitride. The silicon nitride situated above the first region is doped by ion implantation. Trenches are etched through the silicon nitride and the doped silicon nitride is partially etching in an isotropic manner. The trenches are filled with an insulator to a level situated above that of the first region. The silicon nitride is removed resulting in the edges of the first region only being covered with an insulator annulus.

Claim (Index 14):
A semiconductor device comprising:\n a semiconductor substrate having a first region and a second region that are surrounded by trenches; and an insulating material filling the trenches; wherein edges of an upper surface of the first region are covered by the insulating material that fills the trenches; and wherein the insulating material that fills the trenches is filled to a level below edges of the second region at a location adjacent the edges.

Metadata:
- Claim Count in Document: 6.0
- Percentile: 93.0
- Lexical Diversity: 1.83333
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15992481', '11024935', '12869978', '10996866', '10616396']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9005258399183065
- 35 USC 102 Novelty (BERT): 0.5075092715216704
- Combined Prediction Score: 0.8612241830786429
- Mean Citation Score: 233.14608400000003
- Max Citation Score: 285.7944
- Similarity Product: 242.5026506289481

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