PATENT CLAIM ANALYSIS

Application Number: 15989337
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["257", "077000"]

Abstract:
A main semiconductor element and a temperature sensing part are arranged on a single silicon carbide base. The main semiconductor element is a vertical MOSFET and the temperature sensing part is a horizontal diode. An anode region of the temperature sensing part and an n + -type source region and a p + -type contact region of the main semiconductor element are connected by wiring by an anode electrode on a front surface of the silicon carbide base. The temperature sensing part, when the main semiconductor element is ON, is forward biased by drift current flowing in the main semiconductor element. The temperature sensing part, for example, is a poly-silicon diode constituted by a p-type poly-silicon layer and an n-type poly-silicon layer arranged on the front surface of the silicon carbide base. With such configuration, a semiconductor device having high reliability may be provided.

Claim (Index 1):
A semiconductor device comprising:\n a semiconductor element having:\n a first semiconductor layer of a first conductivity type, the first semiconductor layer being a portion of a front surface side of a semiconductor substrate of the first conductivity type; \n a first semiconductor region of a second conductivity type provided selectively in the first semiconductor layer; \n a second semiconductor region of the first conductivity type provided selectively in the first semiconductor region; \n a gate insulating film provided in contact with a region of the first semiconductor region between the first semiconductor layer and the second semiconductor region; \n a gate electrode provided opposing the first semiconductor region, across the gate insulating film; \n a first electrode layer in contact with the first semiconductor region and the second semiconductor region; \n a second semiconductor layer of the first conductivity type, the second semiconductor layer being a portion of a rear side of the semiconductor substrate, in contact with the first semiconductor layer, the second semiconductor layer having an impurity concentration that is higher than an impurity concentration of the first semiconductor layer; and \n a second electrode layer in contact with the second semiconductor layer; and \n a diode arranged in the semiconductor substrate, the diode detecting a temperature of the semiconductor element by passing current through the diode based on the semiconductor substrate having a predetermined temperature, wherein the diode has an anode region electrically connected to the first semiconductor region and the second semiconductor region, via a third electrode layer arranged on a front surface of the semiconductor substrate.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 93.0
- Lexical Diversity: 2.31343
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15941752', '15988661', '15581021', '15669168', '15686662']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.907612148657753
- 35 USC 102 Novelty (BERT): 0.5025570577391142
- Combined Prediction Score: 0.8671066395658891
- Mean Citation Score: 259.0085
- Max Citation Score: 277.2644
- Similarity Product: 239.59977963106635

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

Dataset: test