PATENT CLAIM ANALYSIS

Application Number: 15946060
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["257", "493000"]

Abstract:
To provide a semiconductor device including a power semiconductor element having improved reliability. The semiconductor device has a cell region and a peripheral region formed outside the cell region. The n type impurity concentration of n type column regions in the cell region is made higher than that of n type column regions comprised of an epitaxial layer in the peripheral region. Further, a charge balance is kept in each of the cell region and the peripheral region and each total electric charge is set so that a total electric charge of first p type column regions and a total electric charge of n type column regions in the cell region become larger than a total electric charge of third p type column regions and n type column regions comprised of an epitaxial layer in the peripheral region, respectively.

Claim (Index 2):
The method of manufacturing a semiconductor device according to  claim 1 ,\n wherein a width, in the first direction, of the second column regions in the cell region is equal to a width, in the first direction, of the third column regions in the peripheral region, and wherein a concentration of the impurity of the second conductivity type of the second column regions in the cell region is higher than a concentration of the impurity of the second conductivity type of the third column regions in the peripheral region.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 91.0
- Lexical Diversity: 2.68519
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14705057', '15062029', '13105889', '14995996', '13731065']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9335057737904338
- 35 USC 102 Novelty (BERT): 0.6031891459886048
- Combined Prediction Score: 0.9004741110102509
- Mean Citation Score: 353.0692
- Max Citation Score: 555.88916
- Similarity Product: 457.66235484584325

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

Dataset: test