PATENT CLAIM ANALYSIS

Application Number: 16116463
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["327", "109000"]

Abstract:
A power semiconductor device includes a semiconductor body coupled to first and second load terminal structures, and first and second cells each configured for controlling a load current and electrically connected to the first load terminal structure and to a drift region. A first mesa in the first cell includes a port region electrically connected to the first load terminal structure, and a first channel region coupled to the drift region. A second mesa included in the second cell includes a port region electrically connected to the first load terminal structure, and a second channel region coupled to the drift region. The mesas are spatially confined in a direction perpendicular to a direction of the load current by an insulation structure, and have a total extension of less than 100 nm in that direction. The first channel region includes an inversion channel. The second channel region includes an accumulation channel.

Claim (Index 19):
A method of operating a power semiconductor device that includes a semiconductor body coupled to a first load terminal structure and a second load terminal structure and configured to conduct a load current, a first cell and a second cell, each cell being configured for controlling the load current and each cell being electrically connected to the first load terminal structure on the one side and electrically connected to a drift region of the semiconductor body on the other side, the drift region having a first conductivity type, a first mesa included in the first cell, the first mesa including: a first port region having the first conductivity type and being electrically connected to the first load terminal structure, and a first channel region being coupled to the drift region, a second mesa included in the second cell, the second mesa including: a second port region having the second conductivity type and being electrically connected to the first load terminal structure, and a second channel region being coupled to the drift region, each of the first mesa and the second mesa having a total extension of less than 100 nm in a direction perpendicular to a direction of the load current within the respective mesa, at least one control electrode for inducing a current path for mobile charge carriers of the first conductivity type within the first channel region and fully depleting both the first and second channel regions of mobile charge carriers of the second conductivity type in a conducting state of the semiconductor device; the method comprising:\n operating the power semiconductor device in the conducting state by providing, to the at least one control electrode, a control signal having a voltage within a first range; operating the power semiconductor device in a blocking state by providing the control signal with a voltage within a second range different from the first range; and switching the power semiconductor device from the conducting state to the blocking state by changing the voltage of the control signal from the first range to the second range, wherein changing the voltage of the control signal from the first range to the second range comprises providing a control signal with a voltage within a third range for a hold time period so as to simultaneously provide a current path for mobile charge carriers of the first conductivity type within the first channel region and an accumulation channel for charge carriers of the second conductivity type within the second channel region.

Metadata:
- Claim Count in Document: 56.0
- Percentile: 96.0
- Lexical Diversity: 2.85714
- Patent Class: 327.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15637170', '15637459', '15634720', '15635300', '15635987']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8084719527227014
- 35 USC 102 Novelty (BERT): 0.541465052342108
- Combined Prediction Score: 0.7817712626846421
- Mean Citation Score: 387.73899
- Max Citation Score: 397.92432
- Similarity Product: 392.14264443540566

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

Dataset: test