PATENT CLAIM ANALYSIS

Application Number: 16377405
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-07
Patent Classification: ["257", "043000"]

Abstract:
A semiconductor device including a highly reliable transistor is provided. A semiconductor device includes a transistor. The transistor includes first and second gate electrodes, first and second gate insulators, a source electrode, a drain electrode, first to sixth oxides, first and second layers, and first and second gate insulators. The third oxide is under the source electrode. The fourth oxide is under the drain electrode. The sixth oxide is under the second gate electrode. The third and fourth oxides each have a function of supplying oxygen to the second oxide. The sixth oxide has a function of supplying oxygen to the second gate insulator.

Claim (Index 1):
A method for manufacturing a semiconductor device, comprising the steps of:\n forming a second insulator over a first insulator; forming a first opening whose bottom portion reaches the first insulator in the second insulator; forming a first gate electrode in the first opening; forming a first gate insulator over the second insulator and the first gate electrode; forming a first oxide over the first gate insulator; forming a second oxide over the first oxide; forming a third oxide over the second oxide; forming a conductor over the third oxide; forming a first layer over the conductor; forming a second opening by processing the first layer by a lithography method so that the conductor is exposed in a bottom portion of the second opening; forming a second layer comprising the second opening, the third oxide, the conductor, and the first layer by processing the third oxide, the conductor, and the first layer by a lithography method; processing the second oxide and the first oxide with use of the second layer as an etching mask; removing the third oxide and the conductor exposed in the bottom portion of the second opening to expose the second oxide in the bottom portion of the second opening, to divide the conductor into a source electrode and a drain electrode, the third oxide into a fourth oxide and a fifth oxide, and the first layer into a third layer and a fourth layer, and to form a fifth layer comprising the first oxide, the second oxide, the source electrode, the drain electrode, the fourth oxide, the fifth oxide, the third layer, and the fourth layer; performing plasma treatment using an oxidizing gas to release and reduce an impurity included in the first oxide and the second oxide; performing heat treatment in an atmosphere comprising a nitrogen gas and heat treatment in an atmosphere comprising an oxygen gas to release and reduce hydrogen and water included in the first oxide and the second oxide; forming a sixth oxide over the fifth layer; forming a second gate insulator over the sixth oxide; forming a seventh oxide over the second gate insulator; and forming a second gate electrode over the seventh oxide, wherein oxygen is added to the second gate insulator in the step of forming the seventh oxide.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 100.0
- Lexical Diversity: 2.95
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15455637', '15383478', '15390894', '15420628', '15056356']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9213657924180536
- 35 USC 102 Novelty (BERT): 0.5252767558148876
- Combined Prediction Score: 0.8817568887577371
- Mean Citation Score: 299.640668
- Max Citation Score: 347.1864
- Similarity Product: 308.2640297864914

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