Substrate treating method and apparatus

Coating processes – Centrifugal force utilized

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118 52, 118320, 118321, 134 33, 1341042, 134172, 134198, 4273855, 437231, B05D 312, B05C 1102, B08B 700

Patent

active

059620706

ABSTRACT:
A substrate treating method and apparatus for treating a substrate by supplying a developing solution thereto while spinning the substrate. A nozzle having a plurality of discharge openings for discharging the developer is disposed such that the discharge openings are at different distances from the spin center of the substrate. The developer is discharged from the nozzle while the latter is moved radially of the substrate. The discharge openings then describe loci not overlapping one another over the substrate. The developer is evenly supplied over the substrate to promote the uniformity of development on the substrate surface.

REFERENCES:
patent: 5427820 (1995-06-01), Biche et al.
patent: 5571560 (1996-11-01), Lin
patent: 5695817 (1997-12-01), Tateyama et al.

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