PATENT CLAIM ANALYSIS

Application Number: 16048509
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-12
Patent Classification: ["438", "511000"]

Abstract:
Hydrogen atoms and crystal defects are introduced into an n-semiconductor substrate by proton implantation. The crystal defects are generated in the n-semiconductor substrate by electron beam irradiation before or after the proton implantation. Then, a heat treatment for generating donors is performed. The amount of crystal defects is appropriately controlled during the heat treatment for generating donors to increase a donor generation rate. In addition, when the heat treatment for generating donors ends, the crystal defects formed by the electron beam irradiation and the proton implantation are recovered and controlled to an appropriate amount of crystal defects. Therefore, for example, it is possible to improve a breakdown voltage and reduce a leakage current.

Claim (Index 40):
A semiconductor device, comprising:\n a semiconductor substrate having a first and a second side, and comprising a donor layer with a doping concentration higher than the doping concentration of the semiconductor substrate, with a doping concentration profile in a depth direction from the first side to the second side of the substrate; at least a first peak in said doping concentration profile, situated at a first distance Rp 1  from the first side of said substrate; a region adjacent to Rp 1  and extending in the depth direction from Rp 1  toward the first side, which has a doping concentration which is greater than a doping concentration at the distance beyond Rp 1  toward the second side of the substrate; a second peak in doping concentration, situated at a second distance Rp 2  from the first side of said substrate, wherein said second distance Rp 2  is less than said first distance Rp 1 ; and a region adjacent to Rp 2  and extending in the depth direction from Rp 2  toward the first side of the substrate, which has a doping concentration which is greater than the doping concentration of the region adjacent to Rp 1  and extending in the depth direction from Rp 1  toward the first side.<Doping concentration of (B) is higher than the doping concentration of (A)>15. A semiconductor device according to claim  14 , wherein doping concentration in a region between Rp 1  and Rp 2  is greater than the doping concentration of the semiconductor substrate.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 95.0
- Lexical Diversity: 2.0
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15651612', '14276546', '15008826', '14372450', '15837318']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8807557044224815
- 35 USC 102 Novelty (BERT): 0.5588440632353854
- Combined Prediction Score: 0.8485645403037719
- Mean Citation Score: 354.76655
- Max Citation Score: 420.94998
- Similarity Product: 403.9491088513898

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