PATENT CLAIM ANALYSIS

Application Number: 15743661
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["355", "067000"]

Abstract:
A lithographic apparatus applies a device pattern at multiple fields across a substrate. A height map is decomposed into a plurality of components. A first height map component represents topographical variations associated with the device pattern. One or more further height map components represent other topographical variations. Using each height map component, control set-points are calculated according to a control algorithm specific to each component. The control set-points calculated for the different height map components are then combined and used to control imaging of the device pattern to the substrate. The specific control algorithms can be different from one another, and may have differing degrees of nonlinearity. The combining of the different set-points can be linear. Focus control in the presence of device-specific topography and other local variations can be improved.

Claim (Index 13):
A method of controlling a lithographic apparatus to manufacture a plurality of devices on a substrate, the method comprising:\n obtaining a height map representing a topographical variation across the substrate; and using the height map to control a positioning system of the lithographic apparatus for applying a device pattern at multiple locations across the substrate, wherein using the height map comprises:\n subtracting from the height map a first height map component representing topographical variations associated with the device pattern so as to obtain a second height map component representing other topographical variations; \n using the obtained second height map component, calculating control set-points according to a control algorithm specific to the other topographical variations; and \n using the calculated set-points to control the positioning system to apply the device pattern to the substrate.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 86.0
- Lexical Diversity: 1.91892
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15752658', '15736142', '15121340', '16076743', '11588281']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6933137171605755
- 35 USC 102 Novelty (BERT): 0.4668192394709067
- Combined Prediction Score: 0.6706642693916087
- Mean Citation Score: 203.894416
- Max Citation Score: 241.6026
- Similarity Product: 212.75047705060248

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test