Heat processing apparatus of substrate
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 22, 2003
Grant Date -
Dec 20, 2001
app pub date -
Mar 8, 2001
filing date -
Mar 9, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is an apparatus for operating heat processing to a substrate, and comprises a heating plate to mount and heat the substrate thereon, a supporting member to support a lower surface of a periphery of the heating plate, and a supporter to support the supporting member. The supporting member has a stepped portion to surround an outer peripheral surface of the heating plate. The supporting member is fixed to the supporter by a fixing member penetrating through the stepped portion in a vertical direction. The fixing member is provided between an inner peripheral surface of the stepped portion and the outer peripheral surface of the heating plate. According to the present invention, since the fixing member is provided between the outer peripheral surface of the heating plate and the inner peripheral surface of the stepped portion, the supporting member does not exist between the fixing member and the outer peripheral surface of the heating plate. Therefore, even when the heating plate is cooled, a part of the supporting member does not shrink toward the heating plate side, contrary to the conventional art. Thus, it is prevented that the part of the supporting member partially compresses the heating plate to distort the heating plate.
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