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Dummy Wafers

POCO's line of SUPERSiC® silicon carbide dummy and baffle wafers provide the user with maximum flexibility while meeting SEMI standard wafer dimensions. Wafers can be specified as full round or with user defined notches or flats. They are available in sizes up to 300mm.


POCO offers user defined serialization on each wafer regardless of size or thickness. Custom engraving eliminates the risk of cross contamination in the fab.


SUPERSiC dummy wafers contain no silicon backfill and have high purity and durability. Due to their acid resistance, SUPERSiC wafers can be cleaned and reused indefinitely in LPCVD or diffusion processes and can withstand extended high temperature cycling


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For over forty years, POCO has been recognized for producing the world's best graphites.

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News, Quality Program and Contact information for Poco Graphite