PATENT CLAIM ANALYSIS

Application Number: 16215822
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["372", "002000"]

Abstract:
A high power extreme ultraviolet (EUV) beam is produced. An electron beam is injected in a compact electron storage ring configured for emission of free-electron laser (FEL) radiation. The electron beam is passed through a magnetic undulator on each of a plurality of successive revolutions of the electron beam around the compact electron storage ring. The electron beam is induced to microbunch and radiate coherently while passing through the magnetic undulator. A portion of the free-electron laser radiation at an extreme ultraviolet wavelength produced by an interaction of the electron beam through the magnetic undulator is outputted.

Claim (Index 22):
A method for producing a high power extreme ultraviolet (EUV) beam, including:\n injecting an electron beam in a compact electron storage ring configured for emission of free-electron laser (FEL) radiation, and the compact electron storage ring includes a plurality of bending magnets and a plurality of quadrupole magnets interspersed along the compact electron storage ring, and at least a corresponding one of the quadrupole magnets is between any two of the bending magnets along the compact electron storage ring; passing the electron beam through a magnetic undulator on each of a plurality of successive revolutions of the electron beam around the compact electron storage ring, wherein the electron beam is induced to microbunch and radiate coherently while passing through the magnetic undulator, and the magnetic undulator is a transverse gradient undulator that includes a plurality of transverse gradient undulator components and each of the transverse gradient undulator components includes a periodic structure of mechanically coupled set of magnetic components with alternating poles that create alternating transverse magnetic fields along at least a portion of a length of the transverse gradient undulator to generate at least a portion of the free-electron laser radiation when the electron beam travels along at least the portion of the length of the transverse gradient undulator, and for each of the plurality of transverse gradient undulator components, the included corresponding mechanically coupled set of magnetic components with alternating poles is uniformly tilted in a transverse direction to a path of the electron beam; and outputting a portion of the free-electron laser radiation at an extreme ultraviolet wavelength produced by an interaction of the electron beam through the magnetic undulator, wherein the output portion of the free-electron laser radiation is provided to a lithography system as a light source for the lithography system and an average power of the output portion of the free-electron laser radiation is greater than 250 W.

Metadata:
- Claim Count in Document: 59.0
- Percentile: 98.0
- Lexical Diversity: 1.92727
- Patent Class: 372.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15438611', '15502462', '14645871', '16060792', '15298032']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.828401810365155
- 35 USC 102 Novelty (BERT): 0.560758946923446
- Combined Prediction Score: 0.8016375240209842
- Mean Citation Score: 283.5230160000001
- Max Citation Score: 419.97043
- Similarity Product: 386.75607044401767

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