PATENT CLAIM ANALYSIS

Application Number: 16047057
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-12
Patent Classification: ["257", "139000"]

Abstract:
A p anode layer is formed on one main surface of an n −  drift layer. N +  cathode layer having an impurity concentration more than that of the n −  drift layer is formed on the other main surface. An anode electrode is formed on the surface of the p anode layer. A cathode electrode is formed on the surface of the n +  cathode layer. N-type broad buffer region having a net doping concentration more than the bulk impurity concentration of a wafer and less than the n +  cathode layer and p anode layer is formed in the n −  drift layer. Resistivity ρ 0  of the n −  drift layer satisfies 0.12V 0 ≤ρ 0 ≤0.25V 0  with respect to rated voltage V 0 . Total amount of net doping concentration of the broad buffer region is equal to or more than 4.8×10 11  atoms/cm 2  and equal to or less than 1.0×10 12  atoms/cm 2 .

Claim (Index 25):
The semiconductor device according to  claim 24 , wherein the sum of integrated concentrations of the plurality of broad buffer layers is equal to or more than 5.2\u00d710 11  atoms/cm 2 .

Metadata:
- Claim Count in Document: 8.0
- Percentile: 95.0
- Lexical Diversity: 2.59375
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14980433', '14730940', '14283578', '13505294', '14079072']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9453654884551872
- 35 USC 102 Novelty (BERT): 0.5737729673380783
- Combined Prediction Score: 0.9082062363434764
- Mean Citation Score: 422.573156
- Max Citation Score: 478.16306
- Similarity Product: 405.7200802608955

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