Phase Shift Mask Inspector
Advanced optical interferometer for inspecting phase shift photomasks used in semiconductor lithography, measuring phase uniformity and defects. Critical for 193nm immersion lithography processes. HTS 9031.41.0060 covers other wafer inspection optical tools.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general optical comparators for mask alignment
Non-semiconductor specific mask inspection under other optical appliances.
If for binary masks rather than phase shift types
Statistical breakout for different mask inspection configurations.
If incorporating spectroscopic analysis
Spectrometers for optical property measurement shift classification.
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Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Specify phase measurement accuracy (e.g
• 1° phase error detection)
• Document as complete inspection instrument, not photomask handling part
• Include lithography wavelength compatibility for classification support
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