PATENT CLAIM ANALYSIS

Application Number: 15921730
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["257", "043000"]

Abstract:
A highly reliable semiconductor device exhibiting stable electrical characteristics is provided. Further, a highly reliable semiconductor device is provided. Oxide semiconductor films are stacked so that the conduction band has a well-shaped structure. Specifically, a transistor having a multi-layer structure is manufactured in which a second oxide semiconductor film having a crystalline structure is stacked over a first oxide semiconductor film, and at least a third oxide semiconductor film is provided over the second oxide semiconductor film. When a buried channel is formed in the transistor, few oxygen vacancies are generated and the reliability of the transistor is improved.

Claim (Index 2):
A semiconductor device comprising:\n a substrate; a first oxide semiconductor film over the substrate; a second oxide semiconductor film over the first oxide semiconductor film; a third oxide semiconductor film over the second oxide semiconductor film; a gate electrode overlapping with the first oxide semiconductor film, the second oxide semiconductor film, and the third oxide semiconductor film; and a source electrode and a drain electrode each electrically connected to the second oxide semiconductor film, wherein the second oxide semiconductor film comprises In, Ga and Zn, wherein the first oxide semiconductor film comprises a first side surface and a second side surface at edges in a channel length direction, wherein the second oxide semiconductor film comprises a third side surface and a fourth side surface at edges in the channel length direction, wherein the third oxide semiconductor film is in direct contact with each of the first side surface, the second side surface, the third side surface and the fourth side surface, wherein the third oxide semiconductor film comprises a source region, a drain region, a first region, and a second region, and wherein the drain region is between the first region and the second region when seen from a direction perpendicular to a top surface of the substrate.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 90.0
- Lexical Diversity: 1.96364
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13959862', '15005785', '13959878', '15276921', '13934274']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9200656078312348
- 35 USC 102 Novelty (BERT): 0.5261807956414168
- Combined Prediction Score: 0.880677126612253
- Mean Citation Score: 295.3941200000001
- Max Citation Score: 315.1542
- Similarity Product: 274.37835125727656

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test