PATENT CLAIM ANALYSIS

Application Number: 15863393
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["257", "076000"]

Abstract:
A nitride semiconductor device is disclosed. The semiconductor device includes a semiconductor stack with a top layer containing gallium (Ga) and nitrogen (N), electrodes of a source, a gate and a drain provided on the semiconductor stack, and a silicon nitride (SiN) film provided on the GaN layer between the drain electrode and the gate electrode but apart from the gate electrode. The SiN film has a silicon rich composition with a composition ratio of Si/N that is greater than 3/4 and substantial oxygen contents.

Claim (Index 15):
A process of forming a nitride semiconductor device on a substrate, comprising steps of:\n growing a semiconductor stack on the substrate, where the semiconductor stack includes at least a top layer containing gallium (Ga) and nitrogen (N), and doped with silicon (Si); forming a second insulating film made of silicon nitride (SiN) in a portion on the top layer of the semiconductor stack by a plasma-enhanced chemical vapor deposition (p-CVD) technique; forming a drain electrode by depositing ohmic metals on the semiconductor stack so as to have a portion overlapping with the first insulating film, and alloying the ohmic metals; forming a gate electrode on the semiconductor stack so as to apart from the first insulating film; and covering the gate electrode, the drain electrode, and the first insulating film between the gate electrode and the drain electrode by a second insulating film formed by the p-CVD technique, wherein the p-CVD technique for the second insulating film uses a frequency higher than a frequency of the p-CVD technique for the first insulating film.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 86.0
- Lexical Diversity: 1.86538
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13945613', '13023146', '12190216', '13981048', '12532743']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9060947552123912
- 35 USC 102 Novelty (BERT): 0.5028263030854336
- Combined Prediction Score: 0.8657679099996954
- Mean Citation Score: 246.68365
- Max Citation Score: 261.93457
- Similarity Product: 207.0561668222129

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