PATENT CLAIM ANALYSIS

Application Number: 16013687
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["355", "071000"]

Abstract:
A projection lens of an EUV-lithographic projection exposure system with at least two reflective optical elements each comprising a body and a reflective surface for projecting an object field on a reticle onto an image field on a substrate if the projection lens is exposed with an exposure power of EUV light, wherein the bodies of at least two reflective optical elements comprise a material with a temperature dependent coefficient of thermal expansion which is zero at respective zero cross temperatures, and wherein the absolute value of the difference between the zero cross temperatures is more than 6K.

Claim (Index 1):
A projection lens of an EUV-lithographic projection exposure system, comprising\n a plurality of reflective optical elements M i , each comprising a body MB i  and a reflective surface MS i  for projecting an object field on a reticle onto an image field on a substrate if the projection lens is exposed with an exposure power of EUV light with a wavelength in a wavelength range of less than 50 nm, being reflected from the reticle while illuminated by an illumination system of the EUV-lithographic projection exposure system, wherein the lens comprises support means for passively or actively supporting at least one optical element M k , the support means comprising a temperature sensitive element selected from the group consisting of linking points, bipod structures, linking elements, support element and housing structure, wherein the temperature sensitive element is controlled to a constant or to a predefined temperature, the lens further comprises a first tempering element for heating and/or cooling the at least one optical element M k  to a temperature T k , a second tempering element for tempering the temperature sensitive element to the predefined temperature, wherein the second tempering element is spatially arranged between the temperature sensitive element and the first tempering element.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 94.0
- Lexical Diversity: 1.68333
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13754720', '15070872', '15650533', '14309017', '13366593']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7182187820580918
- 35 USC 102 Novelty (BERT): 0.6128740491682102
- Combined Prediction Score: 0.7076843087691036
- Mean Citation Score: 435.084982
- Max Citation Score: 593.6444
- Similarity Product: 519.5426311651945

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