The Tiny Star Explosions Powering Moore’s Law
Cars That Think
MARCH 5, 2025
We even used some of the same equipment, such as a filter tuned to the characteristic deep-red emission of energized hydrogen atoms, called a Hydrogen-alpha, or H-alpha, filter. Lithography systems in the 1980s used mercury lamps that radiated at wavelengths of 436 nanometers (violet light) and eventually 365 nm (near-ultraviolet).
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