Photolithography involves the selective exposure of a photosensitive material to light, using a UV light source and a collimating optical system to create an image of a patterned mask onto a substrate ...
Eric McNair-Landry and Kate Breen, pictured here during a trip across Baffin Island. The couple has started 3D printing mask tension relievers at their home for health-care workers in Yellowknife.
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