Homogeneous substrate heating using a CO2 laser with feedback, rastering, and temperature monitoring
Homogeneous substrate heating using a CO2 laser with feedback, rastering, and temperature monitoring
We report results from a highly versatile and scalable raster-scanned continuous wave CO2 laser heater incorporating a dual wavelength photodiode-based temperature monitoring system with feedback control. The system is able to uniformly heat substrates inside a vacuum chamber, reduce the occurrence of substrate fracture and allow almost negligible heat loss to the deposition chamber and surroundings. The minimum achievable temperature difference across the substrate is, in practice, limited by the fastest achievable raster scan speed.
4223-4225
Barrington, S.J.
bf10bec5-2c40-4470-a0ef-5bcc69282d1a
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
2000
Barrington, S.J.
bf10bec5-2c40-4470-a0ef-5bcc69282d1a
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Barrington, S.J. and Eason, R.W.
(2000)
Homogeneous substrate heating using a CO2 laser with feedback, rastering, and temperature monitoring.
Review of Scientific Instruments, 71 (11), .
(doi:10.1063/1.1311938).
Abstract
We report results from a highly versatile and scalable raster-scanned continuous wave CO2 laser heater incorporating a dual wavelength photodiode-based temperature monitoring system with feedback control. The system is able to uniformly heat substrates inside a vacuum chamber, reduce the occurrence of substrate fracture and allow almost negligible heat loss to the deposition chamber and surroundings. The minimum achievable temperature difference across the substrate is, in practice, limited by the fastest achievable raster scan speed.
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Published date: 2000
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Local EPrints ID: 13626
URI: http://eprints.soton.ac.uk/id/eprint/13626
ISSN: 0034-6748
PURE UUID: 2247ad76-7c28-4d3f-8e2d-b3a48454cf41
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Date deposited: 06 Jan 2005
Last modified: 16 Mar 2024 02:37
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Author:
S.J. Barrington
Author:
R.W. Eason
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