ASML Holding (NASDAQ: ASML), which is based in the Netherlands, is one of the world's most important semiconductor equipment suppliers. It's the top producer of lithography systems, which optically etch patterns onto silicon wafers, and it serves all of the largest chip foundries -- including Taiwan Semiconductor Manufacturing, Samsung and .
ASML's deep ultraviolet (DUV) lithography systems are used to produce older and larger chips. It's also the only producer of high-end extreme ultraviolet (EUV) lithography systems, which are used to produce the smallest, densest, and most power-efficient chips in the world.
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