Introduction Without suited yellow filters, artificial light as well as daylight will expose substrates coated with photoresist within seconds or minutes with a dose of several mJ/cm2 making reproducible litho-processes impossible. Today, Yellow LED tube with special UV cut material has enough brightness to illuminate the clean room and to enable reproducible litho-processes.
• Uniform lighting without glare and flicker.
• Blue light at 0.01%-0.02%.
• The yellow led tube can effectively filter out the light wavelength under 520nm.
• Designed and manufactured to replace the 18W, 36W fluorescent tube.