Devices, systems and methods for determining temperature and/or optical characteristics of a substrate
A system for measuring the true temperature of a substrate in a deposition system is disclosed. The temperature measurement system has at least one opening formed within a showerhead or manifold placed above a substrate of the deposition system. The temperature measurement system includes an optical...
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| creator | CHAMPETIER ROBERT J |
| description | A system for measuring the true temperature of a substrate in a deposition system is disclosed. The temperature measurement system has at least one opening formed within a showerhead or manifold placed above a substrate of the deposition system. The temperature measurement system includes an optical pyrometer and reflectometer external to the coating chamber that looks through a window or windows and through the at least one opening in the showerhead to sense the substrate being coated. Depending on the particular chamber and showerhead configuration, the system either makes a passive emissivity correction or has an integral reflectometer for an active emissivity correction. Optical features confer an insensitivity to small motions of the showerhead in large coaters where optical alignment is not assured due to thermal and mechanical influences. |
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The temperature measurement system has at least one opening formed within a showerhead or manifold placed above a substrate of the deposition system. The temperature measurement system includes an optical pyrometer and reflectometer external to the coating chamber that looks through a window or windows and through the at least one opening in the showerhead to sense the substrate being coated. Depending on the particular chamber and showerhead configuration, the system either makes a passive emissivity correction or has an integral reflectometer for an active emissivity correction. 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The temperature measurement system has at least one opening formed within a showerhead or manifold placed above a substrate of the deposition system. The temperature measurement system includes an optical pyrometer and reflectometer external to the coating chamber that looks through a window or windows and through the at least one opening in the showerhead to sense the substrate being coated. Depending on the particular chamber and showerhead configuration, the system either makes a passive emissivity correction or has an integral reflectometer for an active emissivity correction. Optical features confer an insensitivity to small motions of the showerhead in large coaters where optical alignment is not assured due to thermal and mechanical influences.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | COLORIMETRY MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE PHYSICS RADIATION PYROMETRY TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR |
| title | Devices, systems and methods for determining temperature and/or optical characteristics of a substrate |
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