Convex-Shape Tool in Nano-Fabrication of Digital-Paper Display

Abstract:

This study describes a new module that uses micro electrochemical machining, and a new design of a convex-shaped tool, in a precision reclamation process to remove defective Indium-tin-oxide (ITO) nanostructures from the optical PET diaphragm surfaces of a digital-paper display. This process takes very little time to remove the ITO layers easily and cleanly and is highly efficient both technically and economically. A small end radius of the cathode or a thin cathode of the bulge-form tool takes less time for the same amount (20 nm) of ITO removal. A large diameter of the cathode of the bulge-form tool combined with a small gap between the cathode and the workpiece corresponds to a higher removal rate of ITO. A high rotational speed of the bulge-form tool can also improve dregs discharge and allows a higher feed rate of the optical PET diaphragm. This higher feed rate combined with enough voltage results in a shorter machining time.

• Periodical: Advanced Materials Research (Volume 135)
• Pages: 36-40
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.135.36
• Online since: October 2010
• Authors: Pai Shan Pa
• Keywords: Convex-Shaped Tool, E-Paper Display, ITO Nanostructure, Micro Electrochemical Machining (Micro ECM), Polymer PET, Reclamation Fabrication

References

[1] S. Besbes, H.B. Ouada, J. Davenas, L. Ponsonnet, N. Jaffrezic: Materials Science and engineering Vol. 26 (2006), p.505.

DOI: 10.1016/j.msec.2005.10.078

[2] K. Daeil, K. Steven: Int'l J. of Surface and Coatings Technology Vol. 154 (2002), p.204.

[3] R. Cueff, G. Baud, M. Benmalek, J.P. Besse: Appl. Sur. Sci. Vol. 115 (1997), p.292.

[4] C.C. Lai, C.C. Tsai: Proceedings of the 2004 IEEE International Conference on Control Applications Vol. 2 (2004), p.1491.

[5] M.S. Park, C.N. Chu: Accounts of Chemical Research Vol. 17 (2007), p.1451.

[6] V.K. Jain, N.V. Nanda: Precision Engineering Vol. 8 (1986), p.27.

[7] S.S. Mansour: I A S; Sedahmed, G H Surface Technology Vol. 10, No. 5 (1980), p.357.

[8] L. Cagnon, V. Kirchner, M. Kock, R. Schuster, G. Ertl, W.T. Gmelin, H. Kuck: Z. Phys. Chem. Vol. 217 (2003), p.299.

[9] A.R. Mileham, S.J. Harrey, K.J. Stout: Wear Vol. 109 (2007), p.207.