PATENT CLAIM ANALYSIS

Application Number: 15982543
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["257", "077000"]

Abstract:
In a vertical MOSFET of a trench gate structure, a high-concentration implantation region is provided in a p-type base region formed from a p-type silicon carbide layer formed by epitaxial growth, so as to include a portion in which a channel is formed. The high-concentration implantation region is formed by ion implantation of a p-type impurity into the p-type silicon carbide layer. The high-concentration implantation region is formed by p-type ion implantation and has an impurity concentration profile in which concentration differences in a depth direction form a bell-shaped curve at a peak of impurity concentration that is higher than that of the p-type silicon carbide layer. In the p-type base region, disorder occurs partially in the crystal structure consequent to the ion implantation for forming the high-concentration implantation region.

Claim (Index 6):
The method of manufacturing a silicon carbide semiconductor device according to  claim 1 , wherein\n the ion implantation is performed using an accelerating voltage so that the peak of the impurity concentration in the second-conductivity-type impurity concentration profile is formed at a depth position farther on a first electrode side than a border of the second epitaxial layer and the first epitaxial layer.

Metadata:
- Claim Count in Document: 28.0
- Percentile: 93.0
- Lexical Diversity: 2.2459
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15397677', '15394950', '15846075', '15279450', '14428840']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9392464272914453
- 35 USC 102 Novelty (BERT): 0.5647959344534282
- Combined Prediction Score: 0.9018013780076436
- Mean Citation Score: 380.60464
- Max Citation Score: 443.02316
- Similarity Product: 391.1178437448264

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

Dataset: test