Please use this identifier to cite or link to this item: https://doi.org/10.1117/12.596543
Title: Low resistivity glass metallization by laser induced plasma assisted ablation (LIPAA)
Authors: Hong, M.H. 
Xie, Q.
Lim, B.C.
Sugioka, K.
Midorikawa, K.
Ye, K.D.
Shi, L.P.
Chong, T.C. 
Keywords: Glass metallization
Laser annealing
Laser induced plasma assisted ablation
Resistivity
Thin film ablation
Issue Date: 2004
Source: Hong, M.H., Xie, Q., Lim, B.C., Sugioka, K., Midorikawa, K., Ye, K.D., Shi, L.P., Chong, T.C. (2004). Low resistivity glass metallization by laser induced plasma assisted ablation (LIPAA). Proceedings of SPIE - The International Society for Optical Engineering 5662 : 532-537. ScholarBank@NUS Repository. https://doi.org/10.1117/12.596543
Abstract: A novel direct-write glass metallization based on laser induced plasma assisted ablation (LIPAA) was investigated. Laser is passed through a glass substrate and irradiated onto a metal target placed beneath the substrate. By tuning laser fluence above target ablation threshold, target ablation and plasma generation occur. The plasma flies towards the glass at a high speed and deposits metal materials onto glass backside surface. Metal films were fabricated and their sheet resistances were measured by a four-point probe. It was found that sheet resistances of the metal films vary with processing parameters. Experimental results reveal that low resistivity metal film (< 0.3 Ω/□) can be obtained at an optimal laser scanning speed and pulse repetition rate. When target-to-substrate distance increases, film resistance also increases. Optimal design of overlap schemes among metal tracks provides a lower film resistance. Meanwhile, thin film and bulk metal targets were used to study their difference on film resistance. It was discovered that deposition using thin film target is more efficient. Laser annealing technique was also applied to activate the deposited metal materials to get higher quality glass surface metallization.
Source Title: Proceedings of SPIE - The International Society for Optical Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/70839
ISSN: 0277786X
DOI: 10.1117/12.596543
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