PATENT CLAIM ANALYSIS

Application Number: 16124357
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2020-01
Patent Classification: ["355", "067000"]

Abstract:
A method for generating EUV radiation is provided. The method includes generating a target droplet with a target droplet generator. The method further includes recording an image of the target droplet on a first image plane to detect a first position of the target droplet. The method also includes recording an image of the target droplet on a second image plane to detect a second position of the target droplet. In addition, the method includes projecting a laser pulse onto the target droplet when the target droplet is located on a focus plane. The method further includes adjusting at least one parameter of the target droplet generator according to the first position and the second position.

Claim (Index 8):
A lithography system, comprising:\n a radiation source module, wherein the radiation source module comprises: a target droplet generator configured to generate a target droplet along an x-axis direction; a first laser source configured to generate a first laser pulse that extends the target droplet; a second laser source configured to generate a second laser pulse that heats the target droplet to produce plasma emitting EUV radiation; a first camera configured to generate a first image of the target droplet at a first image plane which is perpendicular to the x-axis direction and parallel to a y-z plane; a second camera configured to generate a second image of the target droplet at a second image plane which is perpendicular to the x-axis direction and parallel to the y-z plane, the second image plane being different from the first image plane, wherein the first image plane and the second image plane are arranged along the x-axis direction and located between the target droplet generator and the first laser source; and a controller configured to: determine a position of the target droplet at the first image plane based on the image captured by the first camera; determine a position of the target droplet at the second image plane based on the image captured by the second camera; and adjust at least one parameter of the target droplet generator based on a set of data, wherein the set of data comprises a difference between the position of the target droplet at the first image and the position of the target droplet at the second image; and a collector configured to collect and reflect the EUV radiation; a mask stage configured to secure a mask; a wafer stage configured to secure a semiconductor wafer; and one or more optical modules configured to direct the EUV radiation from the radiation source module to image an integrated circuit (IC) pattern defined on the mask onto the semiconductor wafer.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 97.0
- Lexical Diversity: 2.61702
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15905951', '14803849', '15906574', '14412819', '16117545']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7057837868112838
- 35 USC 102 Novelty (BERT): 0.4450548544793319
- Combined Prediction Score: 0.6797108935780887
- Mean Citation Score: 188.09251
- Max Citation Score: 197.40898
- Similarity Product: 179.1575622324574

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