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 15):
A non-transitory computer program product comprising machine readable instructions for causing a general purpose data processing apparatus to at least:\n obtain a height map representing a topographical variation across a substrate; and use the height map to control a positioning system of a lithographic apparatus for applying a device pattern at multiple locations across the substrate, wherein use of the height map comprises: (a) decomposition of the height map into a plurality of components, including a first height map component representing topographical variations associated with the device pattern and a second height map component representing other topographical variations, calculation of control set-points according to a control algorithm specific to each of the first and second height map components, combination of the control set-points calculated for the first height map component and the second height map component, and use of the combined set-points to control the positioning system to apply the device pattern to the substrate, or (b) subtraction 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, calculation of control set-points, using the obtained second height map component, according to a control algorithm specific to the other topographical variations, and use of 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): 0.6921765473803739
- 35 USC 102 Novelty (BERT): 0.4726685015408687
- Combined Prediction Score: 0.6702257427964233
- Mean Citation Score: 203.894416
- Max Citation Score: 241.6026
- Similarity Product: 198.7397371516228

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