Universiti Teknologi Malaysia Institutional Repository

Optimized distance for non-damaging in laser cleaning preparation

Sin, Chong Hai and Abu Bakar, Mohd. Aizat and Abd. Munap, Daing Farhana Hanum and Krishnan, Ganesan and Bidin, Noriah (2016) Optimized distance for non-damaging in laser cleaning preparation. Jurnal Teknologi, 78 (3). pp. 231-234. ISSN 0127-9696


Official URL: http://dx.doi.org/10.11113/jt.v78.7505


Laser Technology has wide application in industry as well as in scientific research. Semiconductor industry also interested to use laser for cleaning contaminant. However, until today, no laser has been deployed to take over the traditional method due to lack of intension on it. As a first step to embark into industrial solution, initiative has been carried out to do fundamental experiment. Optimization has been established to find out the best position for cleaning without associated with damage. A Q-switched Nd:YAG laser was focused to create breakdown in the air. This is an indicator for plasma formation and shock wave generation as the main mechanisms of damage. Pure aluminium was used as a substrate and mounted on précised a 3D linear translational stage. The defocused distance was varied in the range of 0-25 mm. The damage image was recorded and analysed via the aid of ImageJ software. Small and deep dense deformation was observed as the target located at the focal point. As the defocused distance move further away, the damage tend to be eliminated and its depth approaching the same level as original

Item Type:Article
Uncontrolled Keywords:damage, Nd:YAG laser, breakdown, optimization, distance, dept
Subjects:Q Science > QC Physics
ID Code:70143
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:12 Aug 2018 03:56
Last Modified:02 Aug 2021 03:53

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