PATENT CLAIM ANALYSIS

Application Number: 15894293
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["355", "067000"]

Abstract:
A projection objective with obscurated pupil for microlithography has a first optical surface, which has a first region provided for application of useful light, and at least one second optical surface, which has a second region provided for application of useful light. A beam envelope of the useful light extends between the first region and the second region. At least one tube open on the input side and on the output side in the light propagation direction severs to screen scattered light. The at least one tube is between the first optical surface and the second optical surface. The wall of the tube is opaque in the wavelength range of the useful light. The tube extends in the propagation direction of the useful light over at least a partial length of the beam envelope and circumferentially surrounds the beam envelope.

Claim (Index 35):
An apparatus, comprising:\n a projection objective being configured so that, during use of the apparatus, useful light can propagate through the projection objective along a light propagation direction, the projection objective comprising:\n a first optical surface having a first region that interacts with the useful light during use of the apparatus; \n a second optical surface having a second region that interacts with the useful light during use of the apparatus; \n a third optical surface comprising a reflective surface and a through hole; and \n a tube between the first and second optical surfaces along the light propagation direction, \n wherein:\n the apparatus is a microlithography projection exposure apparatus; \n during use of the apparatus, a beam envelope of the useful light extends between the first and second regions; \n during use of the objective, an intermediate image is generated between the first and second optical surfaces; \n the intermediate image is in the through hole; \n the tube is arranged at least in proximity to the intermediate image; \n the tube is open on an input side in the light propagation direction; \n the tube is open on an output side in the light propagation direction; \n the tube screens scattered light during use of the apparatus; \n the tube has a wall that is opaque in a wavelength range of the useful light; \n the tube extends in the propagation direction of the useful light over at least a partial length of the beam envelope; \n the tube extends circumferentially surrounding the beam envelope; \n the reflective surface comprises first and second portions; \n the through hole is between the first and second portions of the reflective surface; and \n during use of the objective, the useful light is reflected from the first and second portions of the reflective surface.

Metadata:
- Claim Count in Document: 56.0
- Percentile: 88.0
- Lexical Diversity: 2.61404
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13107011', '15414005', '14337475', '12624993', '12547135']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6974131966352166
- 35 USC 102 Novelty (BERT): 0.4630436012379748
- Combined Prediction Score: 0.6739762370954925
- Mean Citation Score: 193.36899
- Max Citation Score: 205.89203
- Similarity Product: 163.4003622087735

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