Apparatus for exposure of photo-curing resin applied to printed circuit board
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United States of America Patent
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Jun 24, 2003
Issued Date -
N/A
app pub date -
Jul 31, 2000
filing date -
Jan 9, 1998
priority date (Note) -
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status (Latency Note)
Importance
Abstract
In exposing a photocurable resin to light, the light is irradiated on the photocurable resin while a base material to which the photocurable resin is applied is immersed in a liquid. An apparatus for carrying out the exposure includes an exposure tank in which a liquid does not dissolve the photocurable resin is reserved and a light source irradiating light to the photocurable resin is immersed in the liquid reserved in the tank. The exposure tank has two opposite side walls which have exposure windows closed by transparent plates respectively. The apparatus may include a plurality of light sources disposed so as to correspond to the representative exposing window. A temperature of the liquid in which the base material is immersed is controlled.
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