Apparatus for etching substrate bevel and semiconductor fabrication method using the same
Abstract:
A bevel etching apparatus includes a chuck plate that is configured to receive a substrate, a lower ring surrounding a circumference of the chuck plate, a cover plate on the chuck plate, and an upper ring surrounding a circumference of the cover plate. The lower ring includes a ring base and a protrusion that extends upwardly from an edge of the ring base and surrounds a lower portion of a sidewall of the substrate.
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