PATENT CLAIM ANALYSIS

Application Number: 15967153
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-10
Patent Classification: ["250", "493100"]

Abstract:
An extreme ultra-violet (EUV) lithography system includes an EUV source and EUV scanner. A droplet generator provides a droplet stream in the EUV source. A gas shield is configured to surround the droplet stream. When a laser reacts a droplet in the stream, EUV radiation and ionized particles are produced. The gas shield can reduce contamination resulting from the ionized particles by conveying the ionized particles to a droplet catcher. Components of the EUV source may be biased with a voltage to repel or attract ionized particles to reduce contamination from the ionized particles.

Claim (Index 16):
An apparatus, comprising:\n an extreme ultra-violet (EUV) source device, comprising:\n a droplet generator, \n a droplet catcher, \n a gas injection system, and \n a vacuum exhaust system, \n wherein the gas injection system comprises a gas injection tube disposed around an outlet of the droplet generator such that a stream of droplets generated by the droplet generator passes lengthwise through the gas injection tube, the gas injection tube including a first gas outlet and a second gas outlet, the first gas outlet being inset in the second gas outlet, and wherein the vacuum exhaust system comprises a vacuum exhaust tube disposed around an inlet of the droplet catcher such that the stream of droplets generated by the droplet generator passes through the vacuum exhaust tube.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 91.0
- Lexical Diversity: 1.83929
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15704437', '15800215', '14803849', '13075500', '11733845']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6940921329535646
- 35 USC 102 Novelty (BERT): 0.4471381319863297
- Combined Prediction Score: 0.6693967328568412
- Mean Citation Score: 150.491764
- Max Citation Score: 155.06529
- Similarity Product: 132.4624835096383

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