Electric resistance heating devices – Heating devices – Radiant heater
Reexamination Certificate
2008-01-31
2011-12-06
Robinson, Daniel L (Department: 3742)
Electric resistance heating devices
Heating devices
Radiant heater
C118S725000
Reexamination Certificate
active
08073316
ABSTRACT:
An oven is described that can more evenly heat the semiconductor wafer, even though the wafer may warp during heating. The oven may provide relatively uniform heating even though the type and location of warping may be unpredictable for any given wafer. The oven may have a heating surface divided into a plurality of heating zones that may each independently provide a given amount of heat to the wafer. The amount of heat provided by each zone may be determined using signals from sensors that sense the warping of the wafer.
REFERENCES:
patent: 6002109 (1999-12-01), Johnsgard et al.
patent: 6043460 (2000-03-01), Johnsgard et al.
patent: 6172337 (2001-01-01), Johnsgard et al.
patent: 6191394 (2001-02-01), Shirakawa et al.
patent: 6403925 (2002-06-01), Johnsgard et al.
patent: 6403933 (2002-06-01), Strodtbeck et al.
patent: 2007/0125762 (2007-06-01), Cui et al.
patent: 2001274069 (2001-10-01), None
Banner & Witcoff , Ltd.
Kabushiki Kaisha Toshiba
Robinson Daniel L
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