PATENT CLAIM ANALYSIS

Application Number: 15927235
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-11
Patent Classification: ["355", "067000"]

Abstract:
An illumination system of a microlithographic projection exposure apparatus includes a spatial light modulator which varies an intensity distribution in a pupil surface. The modulator includes an array of mirrors that reflect impinging projection light into directions that depend on control signals applied to the mirrors. A prism, which directs the projection light towards the spatial light modulator, has a double pass surface on which the projection light impinges twice, namely a first time when leaving the prism and before it is reflected by the mirrors, and a second time when entering the prism and after it has been reflected by the mirrors. A pupil perturbation suppressing mechanism is provided that reduces reflections of projection light when it impinges the first time on the double pass surface, and/or prevents that light portions being a result of such reflections contribute to the intensity distribution in the pupil surface.

Claim (Index 12):
The illumination system of  claim 9 , further comprising a polarizing unit configured positioned in the light path, the polarizing unit being configured to transform the light when it impinges on the polarizing unit from an initial state to a p-polarization state.

Metadata:
- Claim Count in Document: 66.0
- Percentile: 90.0
- Lexical Diversity: 2.08
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15270201', '14743017', '13625072', '14543079', '14845574']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7173986202148253
- 35 USC 102 Novelty (BERT): 0.5915698350209989
- Combined Prediction Score: 0.7048157416954426
- Mean Citation Score: 413.347008
- Max Citation Score: 511.5911
- Similarity Product: 500.27464442802665

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