Automated Wafer Separation from the Stacked Array of Solar Cell Silicon Wafers Using Continuous Water Jet

  • Kim, Kyoung-Jin (School of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Kim, Dong-Joo (School of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Kwak, Ho-Sang (School of Mechanical Engineering, Kumoh National Institute of Technology)
  • 투고 : 2010.05.14
  • 심사 : 2010.05.31
  • 발행 : 2010.06.30

초록

In response to the industrial needs for automated handling of very thin solar cell wafers, this paper presents the design concept for the individual wafer separation from the stacked wafers by utilizing continuous water jet. The experimental apparatus for automated wafer separation was constructed and it includes the water jet system and the microprocessor controlled wafer stack advancing system. Through a series of tests, the performance of the proposed design is quantified into the success rate of single wafer separation and the rapidity of processing wafer stack. Also, the inclination angle of wafer equipped cartridge and the water jet flowrate are found to be important parameters to be considered for process optimization. The proposed design shows the concept for fast and efficient processing of wafer separation and can be implemented in the automated manufacturing of silicon based solar cell wafers.

키워드

참고문헌

  1. Burtescu, S., Parvulescu, C., Babarada, F., and Manea, E., "The Low Cost Multicrystalline Silicon Solar Cells," Materials Science and Engineering B, Vol. 165, pp. 190-193, 2009. https://doi.org/10.1016/j.mseb.2009.08.009
  2. Goetzberger, A., Luther, J., and Willeke, G., "Solar Cells: Past, Present, Future," Solar Energy Materials & Solar Cells, Vol. 74, pp. 1-11, 2002. https://doi.org/10.1016/S0927-0248(02)00042-9
  3. Bagnall, D. M. and Boreland, M., "Photovoltaic Technologies," Energy Policy, Vol. 36, pp. 4390-4396, 2008. https://doi.org/10.1016/j.enpol.2008.09.070
  4. Brand, M., "Solar Cells from Q-Cells," http://www.q-cells.com, 2008.
  5. Legtenberg, R., Tilmans, H. A. C., Elders, J., and Elwenspoek, M., "Stiction of Surface Micromachined Structures After Rinsing and Drying: Model and Investigation of Adhesion Mechanisms," Sensors and Actuators A, Vol. 43, pp. 230-238, 1994. https://doi.org/10.1016/0924-4247(93)00654-M
  6. Kim, K., Kwak, H. S., and Park, K. S., "An Experimental Study on Wafer Demounting by Water Jet in a Waxless Silicon Wafer Mounting System," Journal of the Semiconductor & Display Equipment Technology, Vol. 8, pp. 31-35, 2009.