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 22):
The method of  claim 21 , wherein:\n the positioning the sensor plate in different positions includes positioning the sensor plate at planes displaced along an optical axis relative to each other, the collecting measurement data includes projecting a test pattern in the lithographic apparatus, the projecting is performed multiple times to obtain a plurality of images corresponding to the planes displaced along the optical axis relative to each other, and the matching each detector area of the detector with a corresponding location in the pupil plane of the projection system comprises calculating, for the plurality of images, a rate of change of displacement of portions of the test pattern with respect to displacement along the optical axis, and calculating a location in the pupil plane of the projection system traversed by radiation for particular portions of the test pattern using the calculated rate of change.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 97.0
- Lexical Diversity: 2.54545
- Patent Class: 355.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11487607', '14436046', '15486077', '10988845', '10740823']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7342532080436801
- 35 USC 102 Novelty (BERT): 0.4848761633529758
- Combined Prediction Score: 0.7093155035746097
- Mean Citation Score: 246.614856
- Max Citation Score: 261.5179
- Similarity Product: 204.95157543668748

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