Method and apparatus for thermocapillary drying
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United States of America Patent
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Aug 29, 2000
Grant Date -
N/A
app pub date -
Apr 27, 1999
filing date -
May 5, 1998
priority date (Note) -
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Abstract
A method for thermocapillary drying of substrates includes the step of elevating a submerged substrate away from a rinsing liquid. Such movement of the substrate forms a meniscus on opposite sides of the substrate. The curved raised portion of the meniscus at each side of the substrate is gently heated in such a way as to induce thermocapillary flows, which cause the rinsing fluid to flow away from the substrate so that the withdrawing substrate may be pulled out dry and clean. Heating may be accomplished by directing a warm gas onto the meniscus or by heating the meniscus with rays from a radiation/light source. Apparatus is also provided for performing the various method steps.
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