PATENT CLAIM ANALYSIS

Application Number: 16033596
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["430", "005000"]

Abstract:
The present invention provides a halftone mask comprising an assist pattern and a manufacturing method of the halftone mask, which uses an ArF excimer laser as an exposing source, is used for a projection exposure by an off axis illumination, does not resolve the assist pattern while keeping the focal depth magnification effect as the assist pattern, and may form a transferred image having high contrast of a main pattern. A photomask is a photomask comprising the main pattern which is transferred to a transfer-target surface by the projection exposure and the assist pattern which is formed nearby the main pattern and not transferred, characterized in that the main pattern and the assist pattern are each constituted from a semi-transparent film made of the same material, a retardation of 180° is generated between the light transmitting through the main pattern and the light transmitting through a transparent region of a transparent substrate, and a predetermined retardation within the scope of 70° to 115° is generated between the light transmitting through the assist pattern and the light transmitting through the transparent region of the transparent substrate.

Claim (Index 8):
The photomask according to  claim 1 , wherein both the main pattern and the assist pattern are line patterns, and the main pattern is an isolated pattern or a periodic pattern.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 95.0
- Lexical Diversity: 2.25581
- Patent Class: 430.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13147634', '14607541', '15341480', '11884554', '13706978']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8391584517826235
- 35 USC 102 Novelty (BERT): 0.6270531092903103
- Combined Prediction Score: 0.8179479175333921
- Mean Citation Score: 462.73819
- Max Citation Score: 586.9111
- Similarity Product: 539.0714471673368

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