PATENT CLAIM ANALYSIS

Application Number: 15873438
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["257", "389000"]

Abstract:
A parasitic capacitance and a leak current in a nitride semiconductor device are reduced. For example, a 100 nm-thick buffer layer made of AlN, a 2 μm-thick undoped GaN layer, and 20 nm-thick undoped AlGaN having an Al composition ratio of 20% are epitaxially grown in this order on, for example, a substrate made of silicon, and a source electrode and a drain electrode are formed so as to be in ohmic contact with the undoped AlGaN layer. Further, in the undoped GaN layer and the undoped AlGaN layer immediately below a gate wire, a high resistance region, the resistance of which is increased by, for example, ion implantation with Ar or the like, is formed, and a boundary between the high resistance region and an element region is positioned immediately below the gate wire.

Claim (Index 6):
The semiconductor device according to  claim 1 , further comprising:\n a second source electrode, a second drain electrode and a second gate electrode, each of which is formed on the element region of the nitride semiconductor layer, the second source electrode and the second drain electrode, wherein: the second gate electrode includes a third extending portion and a fourth extending portion arranged in parallel with each other, the first gate wiring layer further includes a third portion and from which the third and fourth extending portions of the second gate electrode protrude, the third portion being arranged such that the second portion is disposed between the first portion and the third portion, and at least one of the second source electrode and the second drain electrode is disposed between the third extending portion and the fourth extending portion of the second gate electrode in plan view.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 86.0
- Lexical Diversity: 1.97403
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14636149', '14887249', '13231514', '11109858', '13150574']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.903585343855617
- 35 USC 102 Novelty (BERT): 0.5459233466550869
- Combined Prediction Score: 0.867819144135564
- Mean Citation Score: 271.804574
- Max Citation Score: 383.62396
- Similarity Product: 371.189325690732

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