Dependence of Oxide Pattern Density Variation on Motor Current Endpoint Detection during Shallow Trench Isolation Chemical Mechanical Planarization
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概要
- 論文の詳細を見る
In this study, we evaluate the limitations associated with variable shallow trench isolation (STI) oxide pattern densities for accurate motor current endpoint detection during chemical mechanical planarization (CMP). Results indicate that repeatable motor current endpoint detection can be achieved for STI wafers with oxide pattern density variations of up to 17.4%. Furthermore, results show that a dependence exists between the STI oxide pattern density variation and motor current endpoint success during polishing. According to the findings of this study, a suitable motor current endpoint detection system could yield successful termination points for STI polishing, as well as reduce the need for polishing reworks.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-03-15
著者
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PHILIPOSSIAN Ara
Department of Chemical and Environmental Engineering University of Arizona
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Sorooshian Jamshid
Department Of Chemical And Environmental Engineering University Of Arizona
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Stein David
Sandia National Laboratories, Albuquerque, New Mexico 87114, USA
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Timon Robert
Sandia National Laboratories, Albuquerque, New Mexico 87114, USA
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Hetherington Dale
Sandia National Laboratories, Albuquerque, New Mexico 87114, USA
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Hetherington Dale
Sandia National Laboratories
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Stein David
Sandia National Laboratories
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Timon Robert
Sandia National Laboratories
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