PATENT CLAIM ANALYSIS

Application Number: 15863704
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["257", "330000"]

Abstract:
A semiconductor device includes a semiconductor substrate, a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type, a first semiconductor region of the first conductivity type, a second semiconductor region of the second conductivity type, a gate insulating film, and a gate electrode. The semiconductor device further includes, in a region of the first semiconductor layer across or adjacent to a p-n junction therein that does not overlap the second semiconductor region in a plan view except lateral edges thereof, a lifetime killer region having lifetime killers implanted therein.

Claim (Index 14):
The method of manufacturing the semiconductor device according to  claim 12 , further comprising, after forming the second semiconductor region and before forming the gate electrode:\n forming a trench going through the second semiconductor layer and reaching the first semiconductor layer, a vertical sidewall of said trench exposing said face of said region of the second semiconductor layer that is sandwiched between the first semiconductor layer and the first semiconductor region, wherein in forming the gate electrode, the gate electrode is formed inside the trench across said face of said region of the second semiconductor layer with the gate insulating film interposed therebetween, and wherein said p-n junction is defined by an interface between the first semiconductor layer and a third semiconductor region of the second conductivity that is formed to extend downwardly into the first semiconductor layer from a bottom of the second semiconductor layer and that has a higher impurity concentration than the second semiconductor layer.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 86.0
- Lexical Diversity: 2.32609
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15846040', '15800870', '15692690', '15397677', '15609487']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9258904265615931
- 35 USC 102 Novelty (BERT): 0.5090172875696937
- Combined Prediction Score: 0.8842031126624033
- Mean Citation Score: 277.945936
- Max Citation Score: 287.13644
- Similarity Product: 203.9898693397284

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