Method and apparatus for the treatment of substrates
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United States of America Patent
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Aug 3, 2004
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N/A
app pub date -
Jun 27, 2002
filing date -
Dec 29, 1999
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Abstract
In a method and apparatus for the thermal treatment of semiconductor substrates, such as a wafer, a wafer is brought into a heat treatment apparatus wherein the heat treatment apparatus comprises two substantially flat parts parallel to the introduction position of the wafer, between which the wafer is taken in. The first part is heated to a first high temperature and the second part is cooled with the help of cooling means and is at a second temperature lower than 70.degree. C. By controlling the heat conductivity between the wafer and at least one of the parts, the temperature of the wafer can be influenced to such an extent that during a certain period, the wafer takes on a temperature that is comparatively closer to the first, high temperature and then takes on a temperature which is comparatively closer to the second low temperature.
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