PATENT CLAIM ANALYSIS

Application Number: 16259733
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["257", "331000"]

Abstract:
In an embodiment, a power semiconductor device includes: a semiconductor body for conducting a load current between first and second load terminals; source and channel regions and a drift volume in the semiconductor body; a semiconductor zone in the semiconductor body and coupling the drift volume to the second load terminal, a first transition established between the semiconductor zone and the drift volume; a control electrode insulated from the semiconductor body and the load terminals and configured to control a path of the load current in the channel region; and a trench extending into the drift volume along an extension direction and including a field electrode. A cross-sectional area of the field electrode is smaller than a cross-sectional area of the control electrode in a plane parallel to the extension direction.

Claim (Index 19):
A power semiconductor device, comprising:\n a semiconductor body configured to conduct a load current between a first load terminal and a second load terminal of the power semiconductor device; a source region, a channel region and a drift volume, each included in the semiconductor body, the source region being electrically connected to the first load terminal and the channel region isolating the source region from the drift volume, wherein at least a total extension of the drift volume along an extension direction defines a blocking voltage of the semiconductor device; a control electrode insulated from each of the semiconductor body and the load terminals and configured to control a path of the load current in the channel region; and a trench extending into the drift volume along the extension direction and including a field electrode isolated from the drift volume by a field insulator, wherein:\n an uncontacted region of the field electrode has a greater lateral extension than an uncontacted region of the control electrode; and/or \n the field electrode extends further along the extension direction than the control electrode; and/or \n a total extension of the field electrode is smaller than a total extension of the control electrode in a plane parallel to the extension direction.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 99.0
- Lexical Diversity: 2.37288
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15651126', '15704269', '15647885', '15986301', '15708180']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9203221996938168
- 35 USC 102 Novelty (BERT): 0.5254479809695819
- Combined Prediction Score: 0.8808347778213933
- Mean Citation Score: 271.725306
- Max Citation Score: 355.8658
- Similarity Product: 348.7270249979496

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