An unique UV LED exposure and masking system (in option) with available light sources at wavelengths of 365 nm or 385 nm. This is a very compact table-top system capable of exposing a wafer surface area of up to 4 inches in diameter. This automatic UV system is compatible with hard (physical) or soft (proximity) masking contacts, and features variable mask to substrate distance control.
A device adapted for Soft-lithography applications
With 2μm resolution, the device is particularly well tuned for soft-lithography applications. The exposure in flash enables to reduce the internal mechanical stress of the photoresist. Its little size enables to install it everywhere you want, especially outside a clean room.
Major strengths:
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Perfectly monochromatic exposure over the wafer surface area (bandwidth lower than 10 nm)
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Cold UV exposure
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Divergence angle of the light < 2°
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Strong power density
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Long LED lifetime: more than 10 000 hours equivalent to 8 – 10 years of use
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User-friendly touch screen interface for exposure cycles programming
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No warm-up time required
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Intuitive control of UV source intensity
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Automated wafer loading and unloading system
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Usable with glass and plastic photomask
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High UV uniformity on 4 inches wafer
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Integrated UV meter