PATENT CLAIM ANALYSIS

Application Number: 16289166
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["257", "139000"]

Abstract:
A method of processing a semiconductor device, comprising: providing a semiconductor body having dopants of a first conductivity type; forming at least one trench that extends into the semiconductor body along a vertical direction, the trench being laterally confined by two trench sidewalls and vertically confined by a trench bottom; applying a substance onto at least a section of a trench surface formed by one of the trench sidewalls and/or the trench bottom of the at least one trench, such that applying the substance includes preventing that the substance is applied to the other of the trench sidewalls; and diffusing of the applied substance from the section into the semiconductor body, thereby creating, in the semiconductor body, a semiconductor region having dopants of a second conductivity type and being arranged adjacent to the section.

Claim (Index 2):
A power semiconductor transistor comprising:\n a semiconductor body; and at least one transistor cell, the at least one transistor cell comprising:\n a semiconductor drift region included in the semiconductor body and having dopants of a first conductivity type; \n a semiconductor body region included in the semiconductor body and having dopants of a second conductivity type; \n a source region, wherein the semiconductor body region isolates the source region from the semiconductor drift region; \n a trench extending into the semiconductor body along a vertical direction and comprising a control electrode electrically insulated from each of the semiconductor drift region, the semiconductor body region and the source region; and \n a semiconductor region having dopants of the second conductivity type and being arranged adjacent to the trench and separated from the semiconductor body region, wherein a transition between the trench and the semiconductor region extends along a trench sidewall of the trench, \n wherein a dopant concentration of the semiconductor region adjacent to the trench sidewall changes, in a portion amounting to at least 80% of a total extension of the semiconductor region in the vertical direction, by at least 30% from a dopant concentration value being present in the portion of the total extension.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 99.0
- Lexical Diversity: 2.30159
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15295109', '15331415', '15854478', '16167926', '16241303']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.923642295130122
- 35 USC 102 Novelty (BERT): 0.5107115749741501
- Combined Prediction Score: 0.8823492231145248
- Mean Citation Score: 277.115048
- Max Citation Score: 314.21918
- Similarity Product: 266.65432789167284

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