PATENT CLAIM ANALYSIS

Application Number: 15744577
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["355", "067000"]

Abstract:
An exposure apparatus includes an exposure unit for exposing a wafer. The exposure unit includes an illumination system and masks. The illumination system includes a light-homogenizing unit. The light-homogenizing unit includes a light-homogenizing quartz rod having a regular hexagonal cross section. Each of the masks has a regular hexagonal shape matching with the cross section of the light-homogenizing quartz rod. A field of exposure resulting from this arrangement is less affected by objective field of view distortion and allows a higher useful depth of focus (UDoF) when compared to other fields of exposure of the same size. In addition, with the same projection objective DoF, a greater field of exposure can be obtained.

Claim (Index 1):
An exposure apparatus, comprising an exposure unit for exposing a wafer, the exposure unit comprising an illumination system and masks, the illumination system comprising a light-homogenizing unit, wherein the light-homogenizing unit comprises a light-homogenizing quartz rod having a cross section of a regular hexagonal shape.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 86.0
- Lexical Diversity: 1.82353
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12984078', '10142498', '15813464', '11175172', '14239515']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6746168840452332
- 35 USC 102 Novelty (BERT): 0.466644784042089
- Combined Prediction Score: 0.6538196740449189
- Mean Citation Score: 155.951014
- Max Citation Score: 161.83393999999996
- Similarity Product: 110.6778358616936

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