Electric resistance heating devices – Heating devices – Radiant heater
Reexamination Certificate
2008-01-08
2008-01-08
Campbell, Thor S. (Department: 3742)
Electric resistance heating devices
Heating devices
Radiant heater
C392S407000
Reexamination Certificate
active
11137653
ABSTRACT:
Pulsed processing methods and systems for heating objects such as semiconductor substrates feature process control for multi-pulse processing of a single substrate, or single or multi-pulse processing of different substrates having different physical properties. Heat is applied a controllable way to the object during a background heating mode, thereby selectively heating the object to at least generally produce a temperature rise throughout the object during background heating. A first surface of the object is heated in a pulsed heating mode by subjecting it to at least a first pulse of energy. Background heating is controlled in timed relation to the first pulse. A first temperature response of the object to the first energy pulse may be sensed and used to establish at least a second set of pulse parameters for at least a second energy pulse to at least partially produce a target condition.
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Acharya Narasimha
Timans Paul J.
Campbell Thor S.
Mattson Technology Inc.
Pritzkau Patent Group LLC
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