PATENT CLAIM ANALYSIS

Application Number: 16028128
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["257", "194000"]

Abstract:
In a manufacturing method of a semiconductor device according to the present invention, a buffer layer including a first nitride semiconductor layer, a channel layer including a second nitride semiconductor layer, and a barrier layer including a third nitride semiconductor layer are sequentially laminated, and a fourth nitride semiconductor layer is further laminated thereover. Then, a laminate of a gate insulating film and a gate electrode is formed over a first region of the fourth nitride semiconductor layer, and a silicon nitride film is formed over the fourth nitride semiconductor layer and the laminate. By bringing the fourth nitride semiconductor layers on both sides of the gate electrode into contact with the silicon nitride film in this way, the function of suppressing 2DEG can be lowered, and the 2DEG that has been eliminated after the formation of the fourth nitride semiconductor layer can be restored. The lowering in the function of suppressing 2DEG is maintained even after the silicon nitride film is removed.

Claim (Index 10):
The manufacturing method of a semiconductor device according to  claim 2 ,\n wherein the silicon nitride film contains Si\u2014H bonds and N\u2014H bonds and a ratio of the Si\u2014H bonds to the N\u2014H bonds is 0.3 or more and 0.45 or less.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 95.0
- Lexical Diversity: 2.46479
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14961545', '15670982', '15841676', '15904701', '15966773']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9217894011924196
- 35 USC 102 Novelty (BERT): 0.5315986060698816
- Combined Prediction Score: 0.8827703216801658
- Mean Citation Score: 300.7343259999999
- Max Citation Score: 340.5009
- Similarity Product: 263.966083262086

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