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 13):
The production method of the compound semiconductor device according to  claim 6 , further comprising:\n forming the semiconductor substrate including a rear surface layer that is provided on a rear surface side and has a high impurity concentration, and a drift layer of the first conductivity type that is provided on a front surface side to form the ground layer and has a lower impurity concentration than the rear surface layer; forming a first conductivity type high concentration layer having a higher impurity concentration than the drift layer on the drift layer; forming a Schottky electrode being in contact with the first conductivity type high concentration layer; and forming a rear electrode being in contact with the rear surface layer, wherein the forming the deep trench includes forming the deep trench so as to penetrate the first conductivity type high concentration layer from a surface of the first conductivity type high concentration layer to the drift layer.

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): 0.9270627545888502
- 35 USC 102 Novelty (BERT): 0.5270917322693703
- Combined Prediction Score: 0.8870656523569023
- Mean Citation Score: 310.384496
- Max Citation Score: 356.01843
- Similarity Product: 282.3483279452276

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