PATENT CLAIM ANALYSIS

Application Number: 16226719
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-06
Patent Classification: ["349", "046000"]

Abstract:
The present invention provides a thin film transistor substrate capable of stabilizing TFT characteristics, a liquid crystal display device including the thin film transistor substrate, and a method for producing a thin film transistor substrate. The thin film transistor substrate of the present invention is a thin film transistor substrate including a bottom gate thin film transistor. The thin film transistor includes a semiconductor layer which includes an In—Ga—Zn—O first oxide semiconductor layer and an In—Ga—Zn—O second oxide semiconductor layer covering the first oxide semiconductor layer. In the first oxide semiconductor layer, indium has a higher proportion than gallium and than zinc. In the second oxide semiconductor layer, gallium has a higher proportion than indium and than zinc.

Claim (Index 4):
A method for producing a thin film transistor substrate comprising:\n a first patterning step of forming a conductive film on a base substrate and patterning the conductive film with a first photomask to form a gate electrode; a gate insulating film forming step of forming a gate insulating film to cover the gate electrode; a second patterning step of forming a first semiconductor film containing a first oxide semiconductor on the gate insulating film and patterning the first semiconductor film with a second photomask to form a first semiconductor layer; a third patterning step of forming a second semiconductor film containing a second oxide semiconductor to cover the first semiconductor layer and patterning the second semiconductor film with a third photomask to form a second semiconductor layer to cover the first semiconductor layer; and a fourth patterning step of forming a conductive film to cover the first semiconductor layer and the second semiconductor layer and patterning the conductive film by dry etching with a fourth photomask to form a source electrode and a drain electrode.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 2.70213
- Patent Class: 349.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13698093', '13698750', '13578738', '13885768', '14422807']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8707615816005279
- 35 USC 102 Novelty (BERT): 0.5350794148644759
- Combined Prediction Score: 0.8371933649269226
- Mean Citation Score: 361.751364
- Max Citation Score: 385.06888
- Similarity Product: 349.4874771076011

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