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http://dx.doi.org/10.6111/JKCGCT.2020.30.5.208

Thermal displacement minimization of an oxide target for bonding process by finite element analysis and optimal design  

Cha, Hanyoung (Virtual Engineering Center, Korea Institute of Ceramic Engineering & Technology)
Chung, Chan-Yeup (Virtual Engineering Center, Korea Institute of Ceramic Engineering & Technology)
Abstract
In this research, design optimization was investigated using the finite element analysis and the optimal design technique based on the PQRSM algorithm to minimize the thermal deformation of IGZO oxide in a target module in which IGZO oxide and a copper backplate are bonded to each other. In order to apply the optimal design technique in conjunction with finite element analysis, the x-coordinate of lower supports and upper fixed boards used as design valuables, and the optimal design was performed to minimize the thermal displacement of IGZO materials as the objective function. After the optimization process, the thermal displacement within IGZO oxide could be reduced to 42 % comparing with the initial model. The result is thought to be useful in the industry as it can reduce the thermal deformation of target oxides materials only by changing the position of the subsidiary materials during the bonding process.
Keywords
Thermal deformation; Oxide sputtering targets; Ceramic-metal bonding; Thermal displacement; Finite element analysis; Optimal design; PQRSM;
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1 T. Kamiya and H. Hosono, "Materials characteristics and applications of transparent amorphous oxide semiconductors", NPG Asia Mater. 2 (2010) 15.   DOI
2 X. Yu, L. Zeng, N. Zhou, P. Guo, F. Shi, D.B. Buchholz, Q. Ma, J. Yu, V.P. Dravid, R.P.H. Chang, M. Bedzyk, T. Marks and A. Facchetti, "Ultra-Felxible, "Invisible" thin-film transistors enabled by amorphous metal oxide/polymer channel layer blends", Adv. Mater. 27 (2015) 2390.   DOI
3 H.-K. Lee, J.-H. Yoon and K.-S. Cho, "Multicomponent IGZO ceramics for transparent electrode target fabricated from oxides and nitrates", J. Korean Powder Metall. 26 (2019) 375.   DOI
4 H.-K. Kim and J.-W. Lim, "Flexible IZO/Ag/IZO/Ag multilayer electrode grown on a polyethylene terephthalate substrate using roll-to-roll sputtering", Nanoscale Research Letters 7 (2012) 67.   DOI
5 H.-J. Kim and Y.-J. Kim, "Influence of external forces on the mechanical characteristics of the a-IGZO and graphene based flexible display", IOP Conf. Series: Materials Science and Engineering 62 (2014) 012022.   DOI
6 K.J. Hong, M.S. Kim and D.H. Choi, "Efficient approximation method for constructing quadratic response surface model", KSME Int. Journal 15 (2001) 876.   DOI
7 COMSOL Multiphysics v.5.5, www.comsol.com, COMSOL AB, Stockholm, Sweden.
8 PIAnO (Process Integration, Automation and Optimization) User's Manual, Version 2020, PIDOTECH Inc., 2020.