PATENT CLAIM ANALYSIS

Application Number: 15747499
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["250", "358100"]

Abstract:
A target structure (T) made by lithography or used in lithography is inspected by irradiating the structure at least a first time with EUV radiation ( 304 ) generated by inverse Compton scattering. Radiation ( 308 ) scattered by the target structure in reflection or transmission is detected ( 312 ) and properties of the target structure are calculated by a processor ( 340 ) based on the detected scattered radiation. The radiation may have a first wavelength in the EUV range of 0.1 nm to 125 nm. Using the same source and controlling an electron energy, the structure may be irradiated multiple times with different wavelengths within the EUV range, and/or with shorter (x-ray) wavelengths and/or with longer (UV, visible) wavelengths. By rapid switching of electron energy in the inverse Compton scattering source, irradiation at different wavelengths can be performed several times per second.

Claim (Index 24):
A radiation source apparatus based on inverse Compton scattering, the apparatus comprising an electron source and a photon source, and a controller for controlling the electron source and the photon source to deliver one or more bunches of electrons to an interaction point at the same time as a pulse of photons, whereby a proportion of the photons acquire additional energy by inverse Compton scattering to and are output by the apparatus, wherein the additional energy is controllable such that the photons output by the apparatus have a wavelength in the range 0.1 nm to 125 nm.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 86.0
- Lexical Diversity: 1.88235
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15875156', '15388601', '15079860', '15230937', '15614551']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7204699986120497
- 35 USC 102 Novelty (BERT): 0.4995538786103536
- Combined Prediction Score: 0.6983783866118801
- Mean Citation Score: 247.455584
- Max Citation Score: 259.09894
- Similarity Product: 182.33600258535148

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