Bitumen of Judea
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Bitumen of Judea is a naturally occurring asphalt used since antiquity as a wood colorant, and in early photography as a light-sensitive coating.
Natural bitumen from the Dead Sea
Photolithography
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Photolithography is a process that involves using light to transfer a pattern onto a photoresist layer deposited on a sample, typically a silicon wafer. It is used in the manufacturing of integrated c
Silicon wafer that has undergone photolithography
The wafer track portion of an aligner that uses 365 nm ultraviolet light.