PATENT CLAIM ANALYSIS

Application Number: 15923697
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["257", "057000"]

Abstract:
Provided are a thin film transistor having properties properly adjusted by adjusting crystallinity of a polycrystalline silicon, and a method of manufacturing the same. The silicon layer functioning as a channel layer of a TFT comprises an amorphous part, a first polycrystalline part and a second polycrystalline part. The first and second polycrystalline parts are formed by irradiating the silicon layer with laser beams (energy beams) through the mask comprising the shielding part for shielding the energy beams, the first transmission part for transmitting the energy beams and the second transmission part for transmitting the energy beams at a transmittance lower than that of the first transmission part. By the presence of the second polycrystalline part, properties of the TFT such as an electron mobility are properly adjusted. Further, properties of the TFT can be adjusted easily by adjusting the configuration of the mask.

Claim (Index 4):
A method of manufacturing a thin film transistor comprising:\n a step of forming a gate electrode on a substrate, a step of forming a silicon layer comprising an amorphous silicon on the gate electrode, a step of forming a first polycrystalline part comprising a polycrystalline silicon by irradiating a part of the silicon layer with a first energy beam and forming a second polycrystalline part comprising a polycrystalline silicon having crystallinity lower than that of the first polycrystalline part by irradiating a part of other portion of the silicon layer with a second energy beam having an intensity lower than that of the first energy beam, a step of etching the silicon layer so that the first polycrystalline part, the second polycrystalline part and the silicon layer other than the first polycrystalline part and the second polycrystalline part remain un-etched, and a step of forming a source electrode and a drain electrode on the silicon layer.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 2.36364
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15923546', '15140725', '11506723', '11984031', '10755303']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9199395868653172
- 35 USC 102 Novelty (BERT): 0.5101876232187316
- Combined Prediction Score: 0.8789643905006588
- Mean Citation Score: 255.263632
- Max Citation Score: 304.8285
- Similarity Product: 242.7848071573377

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