PATENT CLAIM ANALYSIS

Application Number: 16222512
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["355", "071000"]

Abstract:
A projection optical unit for EUV projection lithography has a plurality of mirrors for imaging an object field into an image field with illumination light. At least one of the mirrors is an NI mirror and at least one of the mirrors is a GI mirror. A mirror dimension Dx of the at least one NI mirror in a plane of extent (xz) perpendicular to a plane of incidence (yz) satisfies the following relationship: 4  LLWx/IWPV max <Dx.  A mirror dimension Dy of the at least one GI mirror in the plane of incidence (yz) satisfies the following relationship: 4  LLWy /( IWPV max  cos( a ))< Dy.

Claim (Index 15):
The projection optical unit of  claim 11 , wherein the plurality of mirrors further comprises an NI mirror arranged so that a reflection surface of the NI mirror is impinged upon with a maximum angle of incidence of a chief ray of a central field point,\n wherein:\n the maximum angle of incidence upon the NI mirror of the chief ray of the central field point is less than 45\u00b0; \n a ray portion of the chief ray incident on the reflection surface of the NI mirror and a ray portion of the chief ray emerging from the reflection surface of the NIT mirror lie in a plane of incidence (yz); and \n a mirror dimension Dx of the NI mirror in a plane of extent (xz) perpendicular to the plane of incidence (yz) satisfies the following relationship:\n 4  LLWx/IWPV\u2032 max <Dx,  \n \n wherein:\n LLWx: \u00e9ndue of the projection optical unit in the plane of extent (xz); \n IWPV\u2032 max : maximum difference between a maximum angle of incidence and a minimum angle of incidence of the illumination light, respectively, at the same location and determined on the entire reflection surface of the NI mirror.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 98.0
- Lexical Diversity: 2.19298
- Patent Class: 355.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16139474', '14962130', '15728812', '15596628', '15966947']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7709817167946179
- 35 USC 102 Novelty (BERT): 0.5235016337029239
- Combined Prediction Score: 0.7462337084854486
- Mean Citation Score: 357.308172
- Max Citation Score: 381.40622
- Similarity Product: 296.12095882244824

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