PATENT CLAIM ANALYSIS

Application Number: 15753342
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["257", "076000"]

Abstract:
A semiconductor device includes a conductive substrate, a channel forming layer, a first electrode, and a second electrode. The channel forming layer is located above the conductive substrate and includes at least one hetero-junction structure. The hetero-junction structure includes a first GaN-type semiconductor layer providing a drift region and a second GaN-type semiconductor layer having a bandgap energy greater than the first GaN-type semiconductor layer. A total fixed charge quantity of charges in the first GaN-type layer and the second GaN-type layer is from 0.5×10 13  to 1.5×10 13  cm −2 . The charges in the first GaN-type layer and the second GaN-type layer include charges generated by the polarization in the first GaN-type layer. Accordingly, the semiconductor device capable of improving a break-down voltage and decreasing an on-resistance is obtained.

Claim (Index 1):
A semiconductor device comprising:\n a conductive substrate; a channel forming layer that is located above the conductive substrate and includes at least one hetero-junction structure, the hetero-junction structure including a first GaN-type semiconductor layer providing a drift region and a second GaN-type semiconductor layer having a bandgap energy greater than the first GaN-type semiconductor layer; a first electrode that is in contact with the second GaN-type semiconductor layer; and a second electrode that is in contact with the second GaN-type semiconductor layer and is located separately from the first electrode, wherein a distance between the first electrode and the second electrode is greater than a thickness of the hetero-junction structure including the first GaN-type semiconductor layer and the second GaN-type semiconductor layer, the channel forming layer is configured to generate a current by a carrier of a 2-dimensional electron gas, the 2-dimensional electron gas being generated by a polarization in the first GaN-type semiconductor layer adjacent to an interface between the first GaN-type semiconductor layer and the second GaN-type semiconductor layer, a total fixed charge quantity of charges in the first GaN-type layer and the second GaN-type layer is from 0.5\u00d710 13  to 1.5\u00d710 13  cm \u22122 , and the charges in the first GaN-type layer and the second GaN-type layer include charges generated by the polarization in the first GaN-type layer.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 88.0
- Lexical Diversity: 2.25806
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15573200', '12589945', '15578403', '14890659', '14275276']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9181282273709992
- 35 USC 102 Novelty (BERT): 0.4912782459328368
- Combined Prediction Score: 0.8754432292271831
- Mean Citation Score: 233.846724
- Max Citation Score: 249.4485
- Similarity Product: 198.6134622759819

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