PATENT CLAIM ANALYSIS

Application Number: 16070061
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["257", "288000"]

Abstract:
A compound semiconductor device includes a semiconductor substrate having a ground layer of a first conductivity type made of a compound semiconductor, a first conductivity type region formed at a corner portion of a bottom of a deep trench formed to the ground layer, and a deep layer of a second conductivity type formed in the deep trench so as to cover the first conductivity type region. A cross section of the first conductivity type region is a triangular shape or a rounded triangular shape in which a portion of the first conductivity type region being in contact with the deep layer is recessed to have a curved surface.

Claim (Index 6):
A production method of a compound semiconductor device, comprising:\n preparing a semiconductor substrate including a ground layer of a first conductivity type made of a compound semiconductor; forming a deep trench to the ground layer; forming a first conductivity type region at a corner portion of a bottom of the deep trench by introducing a source gas of the compound semiconductor while introducing a dopant gas including a first conductivity type dopant in an epitaxial growth apparatus; and epitaxially growing a deep layer of a second conductivity type in the deep trench so as to cover the first conductivity type region by introducing the source gas of the compound semiconductor while introducing a dopant gas including a second conductivity type dopant after forming the first conductivity type region.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 95.0
- Lexical Diversity: 2.35417
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16069914', '16069927', '14894668', '15365150', '14400365']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9268566679706156
- 35 USC 102 Novelty (BERT): 0.5254807104904459
- Combined Prediction Score: 0.8867190722225987
- Mean Citation Score: 310.384496
- Max Citation Score: 356.01843
- Similarity Product: 328.92891053465735

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