Semiconductor device manufacturing apparatus and a method of controlling a semiconductor device manufacturing process
A particle monitor in the process chamber of a semiconductor device manufacturing apparatus provides a measure of a flux of contaminant particles in the chamber. The flux is measured whilst process conditions are produced in the process chamber and a process parameter is adjusted in response to the...
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Sprache: | eng |
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Zusammenfassung: | A particle monitor in the process chamber of a semiconductor device manufacturing apparatus provides a measure of a flux of contaminant particles in the chamber. The flux is measured whilst process conditions are produced in the process chamber and a process parameter is adjusted in response to the measured flux in order to reduce this flux during the process. In an ion implanter, the particle sensor (24) measures the flux of particles entrained with the ion beam (32) at a location in front of the wafer being processed. |
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