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Title: Theoretical modeling for laser cleaning of micro-particles from solid surface
Authors: Lu, Y.F. 
Song, W.D. 
Hong, M.H. 
Chan, D.S.H. 
Low, T.S. 
Issue Date: 1998
Source: Lu, Y.F.,Song, W.D.,Hong, M.H.,Chan, D.S.H.,Low, T.S. (1998). Theoretical modeling for laser cleaning of micro-particles from solid surface. Materials Research Society Symposium - Proceedings 501 : 399-408. ScholarBank@NUS Repository.
Abstract: In laser cleaning of micro-particles from solid surface, the adhesion force between the particles and the substrate surface and the thermal expansion of both particles and substrate play important roles in determining the threshold laser fluence. Taking Van der Waals force and cleaning force due to fast thermal expansion of particles and substrate surface induced by pulsed laser irradiation into account, a cleaning model was established for removal of tiny particles from substrate surfaces. The cleaning condition and cleaning threshold can be obtained from this model. This model can qualitatively and quantitatively predict how the laser cleaning process depending on laser incident direction, laser wavelength, particle size, particle material and substrate material. Theoretical predictions have been verified by the experimental results. Laser cleaning of micro-particle has wide applications in microelectronics and magnetic recording industries.
Source Title: Materials Research Society Symposium - Proceedings
ISSN: 02729172
Appears in Collections:Staff Publications

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