PATENT CLAIM ANALYSIS

Application Number: 16251149
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["355", "067000"]

Abstract:
A method of operating an illumination system of a microlithographic projection exposure apparatus is provided. A set of illumination parameters that describe properties of a light bundle which converges at a point on a mask to be illuminated by the illumination system is first determined. Optical elements whose optical effect on the illumination parameters can be modified as a function of control commands are furthermore determined, as well as sensitivities with which the illumination parameters react to an adjustment of the optical elements, induced by the control commands. The control commands are then determined while taking the previously determined sensitivities into account, such that deviations of the illumination parameters from predetermined target illumination parameters satisfy a predetermined minimisation criterion. These control commands are applied to the optical elements, before the mask is illuminated.

Claim (Index 19):
The method of  claim 2 , wherein the optical element comprises an optical element selected from a group consisting of:\n a light source having a modifiable position relative to an optical axis of the illumination system; a diffractive optical element having a modifiable spatial orientation with respect to the optical axis of the illumination system; a zoom objective comprising lens which that is displaceable along the optical axis of the illumination system; an axicon group comprising two axicon elements having modifiable spacing; a transmission filter in or in a vicinity of a pupil surface of the illumination system; a transmission filter in or in a vicinity of a field plane of the illumination system; a transmission filter between a pupil surface and a field plane of the illumination system; and a variable-position lens in a condenser of the illumination system, by which ray bundles coming from secondary light sources are superimposed in a field plane.

Metadata:
- Claim Count in Document: 51.0
- Percentile: 99.0
- Lexical Diversity: 1.94521
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13902100', '12853971', '15627816', '14948589', '15146350']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7459888489242635
- 35 USC 102 Novelty (BERT): 0.5209362716743862
- Combined Prediction Score: 0.7234835911992757
- Mean Citation Score: 350.443864
- Max Citation Score: 378.09048
- Similarity Product: 351.23702657662864

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