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Volume 2 Issue 1
Mar.  2020
Article Contents

Wu Y Q, Mu D K, Huang H. 2020. Deformation and removal of semiconductor and laser single crystals at extremely small scales. Int. J. Extrem. Manuf. 2, 012006.
Citation: Wu Y Q, Mu D K, Huang H. 2020. Deformation and removal of semiconductor and laser single crystals at extremely small scales. Int. J. Extrem. Manuf2, 012006.

Deformation and removal of semiconductor and laser single crystals at extremely small scales


doi: 10.1088/2631-7990/ab7a2a
More Information
  • Publish Date: 2020-03-01
  • Semiconductor and laser single crystals are usually brittle and hard, which need to be ground to have satisfactory surface integrity and dimensional precision prior to their applications. Improvement of the surface integrity of a ground crystal can shorten the time of a subsequent polishing process, thus reducing the manufacturing cost. The development of cost-effective grinding technologies for those crystals requires an in-depth understanding of their deformation and removal mechanisms. As a result, a great deal of research efforts were directed towards studying this topic in the past two or three decades. In this review, we aimed to summarize the deformation and removal characteristics of representative semiconductor and laser single crystals in accordance with the scale of mechanical loading, especially at extremely small scales. Their removal mechanisms were critically examined based on the evidence obtained from high-resolution TEM analyses. The relationships between machining conditions and removal behaviors were discussed to provide a guidance for further advancing of the grinding technologies for those crystals.

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Deformation and removal of semiconductor and laser single crystals at extremely small scales

doi: 10.1088/2631-7990/ab7a2a
  • 1 School of Mechanical and Mining Engineering, The University of Queensland, QLD 4072, Australia
  • 2 Institute of Manufacturing Engineering, Huaqiao University, Xiamen, 361021, People’s Republic of China

Abstract: 

Semiconductor and laser single crystals are usually brittle and hard, which need to be ground to have satisfactory surface integrity and dimensional precision prior to their applications. Improvement of the surface integrity of a ground crystal can shorten the time of a subsequent polishing process, thus reducing the manufacturing cost. The development of cost-effective grinding technologies for those crystals requires an in-depth understanding of their deformation and removal mechanisms. As a result, a great deal of research efforts were directed towards studying this topic in the past two or three decades. In this review, we aimed to summarize the deformation and removal characteristics of representative semiconductor and laser single crystals in accordance with the scale of mechanical loading, especially at extremely small scales. Their removal mechanisms were critically examined based on the evidence obtained from high-resolution TEM analyses. The relationships between machining conditions and removal behaviors were discussed to provide a guidance for further advancing of the grinding technologies for those crystals.

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