Coating processes – Spraying – Heated coating material
Patent
1990-09-20
1992-02-18
Beck, Shrive
Coating processes
Spraying
Heated coating material
427425, 118 52, 118600, 118302, 118321, B05D 130
Patent
active
050893050
ABSTRACT:
Disclosed is a coating apparatus for applying a resist or developing solution to a semiconductor wafer. This coating apparatus comprises a plurality of nozzles supplied with various resist from a resist source and each adapted to drip the different solution onto the wafer, a vessel in which the nozzles is kept on stand-by, while maintaining the liquids in a predetermined state in the vicinity of discharge port portions of the nozzles, when the nozzles need not be operated, and a nozzle operating mechanism for selecting one of the nozzles kept on stand-by in the vessel, and transporting the selected nozzle to the location of the wafer, whereby the resist is applied to the wafer by means of only the nozzle transported by the nozzle operating mechanism.
REFERENCES:
patent: 691075 (1902-01-01), Riguad
patent: 3908592 (1975-09-01), Ordway et al.
patent: 4416213 (1983-11-01), Sakiya
patent: 4564280 (1986-01-01), Fukuda
patent: 4872417 (1989-10-01), Kunabara et al.
patent: 4886012 (1989-12-01), Ikeno et al.
patent: 4932353 (1990-06-01), Kawata et al.
Akimoto Masami
Anai Noriyuki
Hirakawa Osamu
Kimura Yoshio
Ushijima Mitsuru
Bashore Alain
Beck Shrive
Tel Kyushu Limited
Tokyo Electron Limited
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