PATENT CLAIM ANALYSIS

Application Number: 16096520
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["355", "071000"]

Abstract:
The invention relates to a measurement system for a projection system of a lithographic apparatus, comprising: —a sensor plate; —a detector comprising an array of detector areas; —a randomly ordered optical fiber bundle; —a positioner to position the sensor plate in the projection system; and —a control unit to control the positioning of the sensor plate and to obtain measurement data from an output of the detector, wherein a first free end of the optical fiber bundle is arranged to receive light from the sensor plate, wherein a second free end of the optical fiber bundle opposite the first free end of the optical fiber bundle is aligned with the array of detector areas of the detector, and wherein the control unit is configured to match each detector area with a corresponding location in a pupil plane of the projection system by collecting measurement data corresponding to different positions of the sensor plate relative to the projection system.

Claim (Index 29):
A lithographic apparatus comprising:\n an illumination system configured to condition a radiation beam; a support constructed to support a patterning device, the patterning device being capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam; a substrate table constructed to hold a substrate with a multiple target portions arranged in one or more columns parallel to an axis; a projection system configured to project the patterned radiation beam onto a target portion of the substrate; and a positioner configured to position the substrate table, the positioner comprising:\n a long-stroke module configured for coarse positioning of the substrate table relative to a reference; \n a short-stroke module supported by the long-stroke module configured for fine positioning of the substrate table relative to the reference; \n a sensor plate arranged on the short-stroke module; \n a detector arranged on the long-stroke module; \n an optical fiber bundle arranged on the long-stroke module, wherein a cross-section of a fiber in the optical fiber bundle has an outer diameter; and \n a control unit configured to control the long-stroke module and the short-stroke module to position the substrate table relative to the reference, \n wherein a first free end of the optical fiber bundle is arranged to receive light from the sensor plate, \n wherein a second free end of the optical fiber bundle opposite the first free end of the optical fiber bundle is arranged such that light emanating from the fibers of the optical fiber bundle at the second free end illuminates the detector, and \n wherein the control unit is configured to keep a moving range of the short-stroke module relative to the long-stroke module within at most half the outer diameter of the cross-section of the optical fibers during at least a predetermined measurement period.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 97.0
- Lexical Diversity: 2.54545
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11487607', '14436046', '15486077', '10988845', '10740823']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7125177922414943
- 35 USC 102 Novelty (BERT): 0.4704447388180174
- Combined Prediction Score: 0.6883104868991466
- Mean Citation Score: 246.614856
- Max Citation Score: 261.5179
- Similarity Product: 242.04071782152653

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