PATENT CLAIM ANALYSIS

Application Number: 15894954
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["257", "401000"]

Abstract:
A semiconductor device includes a semiconductor substrate, a dielectric layer, a gate structure, a source semiconductor feature, and a drain semiconductor feature. The semiconductor substrate has an active area and a shallow trench isolation (STI) structure surrounding the active area. The semiconductor substrate includes a protrusion structure in the active area and has an undercut at a periphery of the active area. The dielectric layer overlays the protrusion structure of the semiconductor substrate and fills at least a portion of the undercut of the protrusion structure. The gate structure crosses over the protrusion structure. The source semiconductor feature and the drain semiconductor feature are located in the active area and positioned at opposite sides of the gate structure.

Claim (Index 1):
A semiconductor device, comprising:\n a semiconductor substrate having an active area and a shallow trench isolation (STI) structure surrounding the active area, wherein the semiconductor substrate comprises a protrusion structure in the active area and having an undercut at a periphery of the active area; a dielectric layer overlaying the protrusion structure of the semiconductor substrate and filling at least a portion of the undercut of the protrusion structure; a gate structure crossing over the protrusion structure; and a source semiconductor feature and a drain semiconductor feature in the active area and positioned at opposite sides of the gate structure; wherein the STI structure comprises a first portion and a second portion, wherein the first portion is under and aligned with the gate structure, and the second portion is free of overlapping with the gate structure; wherein the second portion has a top structure that is higher than a top surface of the first portion of the STI structure, and the protrusion structure has a top surface on a level between the top surface of the second portion and the top surface of the first portion of the STI structure.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 88.0
- Lexical Diversity: 2.82609
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12343831', '15867329', '13164297', '14694355', '11541267']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9168239293938426
- 35 USC 102 Novelty (BERT): 0.475564956052814
- Combined Prediction Score: 0.8726980320597397
- Mean Citation Score: 203.541446
- Max Citation Score: 208.92574
- Similarity Product: 169.5405259579313

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

Dataset: test