Layered thin film heater and method of fabrication
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United States of America Patent
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Nov 22, 2016
Grant Date -
Sep 3, 2015
app pub date -
Mar 3, 2014
filing date -
Mar 3, 2014
priority date (Note) -
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Abstract
A method of forming thin film heater traces on a wafer chuck includes positioning a pattern, that forms openings corresponding to a desired layout of the heater traces, in proximity to the wafer chuck. The method includes sputtering a material toward the pattern and the wafer chuck such that a portion of the material passes through the openings and adheres to the wafer chuck to form the heater traces. A method of forming thin film heater traces on a wafer chuck includes sputtering a blanket layer of a material onto the wafer chuck, and patterning a photoresist layer utilizing photolithography. The photoresist layer covers the blanket layer in an intended layout of the heater traces, exposing the blanket layer in areas that are not part of the intended layout. The method removes the areas that are not part of the intended layout by etching, and removes the photoresist layer.
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