PATENT CLAIM ANALYSIS

Application Number: 15755098
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["257", "077000"]

Abstract:
An active cell region, an edge termination region surrounding the active cell region and an intermediate region located at an intermediate position between these regions are provided, the active cell region has a trench gate type MOS structure on a top side, and a vertical structure on a bottom side includes a p-collector layer, an n-buffer layer on the p-collector layer, and an n-drift layer on the n-buffer layer, the n-buffer layer has a first buffer portion provided on the p-collector layer side, and a second buffer portion provided on the n-drift layer side, the peak impurity concentration of the first buffer portion is higher than the peak impurity concentration of the second buffer portion, and the impurity concentration gradient on the n-drift layer side of the second buffer portion is gentler than the impurity concentration gradient on the n-drift layer side of the first buffer portion.

Claim (Index 16):
The semiconductor device according to  claim 2 , wherein the cathode layer has a p-cathode layer.

Metadata:
- Claim Count in Document: 53.0
- Percentile: 88.0
- Lexical Diversity: 3.07843
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14678797', '15533615', '14111168', '14784170', '13994424']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9199536035739534
- 35 USC 102 Novelty (BERT): 0.5183514097220684
- Combined Prediction Score: 0.879793384188765
- Mean Citation Score: 287.140746
- Max Citation Score: 302.5694
- Similarity Product: 240.0545912156224

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