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Photolithography Filter

Asahi Spectra introduces the photolithography filters, including i-line bandpass filter and cold mirror and so on. Our experienced filter technology achieves maximum throughput for the exposure process in semiconductor or printing market.

Hg Filter
Hg filter effectively transmits emission line of mercury lamp, therefore they are often used for the field of lithography.This line includes filters that transmit a single emission line and multiple emission line of mercury lamp. Each product has its high transmittance and great durability against heat because they are assembled without epoxy adhesive, and made of fused silica.

Others
Super Cold Filter
Cold Mirror
Custom Filter

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• Shortpass Filters
• Longpass Filters
• Bandpass Filters
• Neutral Density Filters
• Super Cold Filters
• UV Filters
• Astronomical Filters
• Defense & Security
• Photolithography Filters
• Custom Filters