PATENT CLAIM ANALYSIS

Application Number: 16101948
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["430", "005000"]

Abstract:
In a phase shift mask blank comprising a transparent substrate and a phase shift film deposited thereon and having a phase shift of 150-200° with respect to sub-200 nm light, the phase shift film is composed of a silicon base material consisting of silicon, nitrogen and optionally oxygen, has a thickness of up to 70 nm, and provides a warpage change of up to 0.2 μm in a central region of a surface of the substrate before and after the deposition of the phase shift film on the substrate.

Claim (Index 25):
A method for preparing a phase shift mask blank comprising the steps of:\n sputter depositing a phase shift film on a transparent substrate, said depositing step including a step of depositing a layer composed of a silicon base material consisting of silicon, nitrogen and oxygen on a transparent substrate by using a sputtering system with a chamber and at least one silicon target, and feeding argon gas, and at least one gas selected from nitrogen gas, oxygen gas and nitrogen oxide gas into the chamber, and heat treating the phase shift film on the substrate at 400\u00b0 C. or above for at least 5 minutes.

Metadata:
- Claim Count in Document: 65.0
- Percentile: 96.0
- Lexical Diversity: 1.84314
- Patent Class: 430.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15077296', '15077258', '15717136', '15078618', '11093295']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8035279138518553
- 35 USC 102 Novelty (BERT): 0.5569191539703873
- Combined Prediction Score: 0.7788670378637086
- Mean Citation Score: 372.456968
- Max Citation Score: 435.32162
- Similarity Product: 422.0984646599746

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