PATENT CLAIM ANALYSIS

Application Number: 16131326
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-02
Patent Classification: ["355", "071000"]

Abstract:
An attenuation filter is configured to define attenuation of the intensity of ultraviolet radiation with a specified working wavelength from a wavelength range of 150-370 nm according to a specifiable local distribution in a projection lens of a microlithographic projection exposure apparatus. The attenuation filter has a substrate and an absorption layer on the substrate. The substrate is sufficiently transparent at the working wavelength. The absorption absorbs incident ultraviolet radiation of the working wavelength according to the specifiable local distribution at different locations of a used area to varying degrees. The attenuation filter reduces or avoids a thermally induced wavefront variation error in the ultraviolet radiation which has passed through the attenuation filter owing to locally varying heating of the substrate, which is caused by the absorption of the ultraviolet radiation that varies locally over the substrate. A thickness of the substrate is less than 100 um.

Claim (Index 9):
The attenuation filter according to  claim 1 , wherein the absorption layer comprises an absorption layer material configured to absorb the radiation at the wavelength, and the absorption layer has a thickness varies locally over the substrate according to the local distribution.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 97.0
- Lexical Diversity: 2.0
- Patent Class: 355.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14454939', '12369460', '15441441', '12129161', '15814765']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7246653432353616
- 35 USC 102 Novelty (BERT): 0.4990774560265337
- Combined Prediction Score: 0.7021065545144789
- Mean Citation Score: 232.250184
- Max Citation Score: 279.80145
- Similarity Product: 188.9909129835605

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