田口方法在手機面板熱週期檢測之變形改善

Taguchi Method for Warping Improvement of LCD Lamination in Thermal Cycle Test of Cellphone

陳裕文(Yu-Wen Chen)

指導教授 ： 康淵

中原大學/工學院/機械工程學系/碩士(2008年)

https://doi.org/10.6840/CYCU.2007.00682

摘要

摘要
台灣手機面板製造業，面臨到高精密加工技術的全球化競爭，為了提出一套有效的方法可以提高手機面板的機械性質且能降低整機高度，及在不影響原有加工效率下達到所需性能。光學面板的品質與製造的品質控制有極重要的關聯性，如何選擇原材料及設計製程去達到目標是非常重要。
本文旨在探討田口方法（Taguchi Method）在手機面板熱週期檢測之變形改善，如何選擇原材料及設計製程去達到目標及對品質維持與參數決策之方案來規劃前置實驗，並運用田口式實驗法則調整設計製程參數及原材料參數，求得較好的表面段差值，本文中，使用塑膠玻璃疊層面板設計參數及原材料參數、壓感膠帶的原材料參數、偶合液及酒精的製程參數為控制因子，依據SN比之回應分析，可得知手機面板的所需性能之參數組合。將這幾個參數在不同條件時之最佳組合，將此結果會使有較精確條件及增加其能力。

關鍵字

手機面板 ； 田口方法 ； 塑膠玻璃疊層面板 ； 表面段差 ； 翹曲變形

並列摘要

ABSTRACT
Taiwan mobile phone industry (own-brand or OEM) demands high precision designs and machining technology to confronts global competition. This thesis presents a set of methodology to improve mechanical properties, reduce mobile phone height, and at the same time, sustain production effectiveness. LCD lamination, as a critical user-interface component, machining and assembly quality is directly related to material selection, design tolerance, and production sequences in order to achieve engineering specifications and market/customer acceptance.
This thesis applies Taguchi method in reducing LCD lamination deformation over thermal cycling tests. This Taguchi derivation intends to generate a systematic design experiments to zoom-in optimal parameters, starting from material selection, all the way, to quality and manufacturing processes. A LCD plexi-glass lamination, for example, its inset matching flatness (assembled plexi-glass height and chassis surface) is a critical dimension. The direct control parameters are material properties, pressure sensitive adhesives, primer, and alcohol applications, etc. Based on SN feedback analysis, optimal control parameters can be derived. Under different boundary conditions, Taguchi method derives respective optimal control parameters that are able to zoom-in overall accuracy, and inherently improve product’s mechanical strengths upon assembly.

並列關鍵字

Taugchi method ； cellular phone LCD lamination ； Step on surface ； Warpage ； glass and plastic lamination

參考文獻

11. Takino Hideo, Kusano Masaaki, Nakayama Takayuki, 〝Relationship between Surface Shape of The Plastic Lens and Molding Conditions in The Injection Molding,〞 Kobunshi Ronbunshu Japanese Journal of Polymer Science and Technology, Vol. 53, NO.6, p.345-351, 1996.

14. Lu X., Lau Soo Khim, 〝A Statistical Experimental Study of The Injection Molding of Optical Lenses,〞 Journal of Materials Processing Technology, Vol. 113, NO.1-3, p.189-195, 2001.

24. Phadke, M. S., 〝Quality Engineering Using Robust Design,〞 Prentice-Hall, 1989.

27. Myung-Jin Yim, Kyung-Wook Paik, 〝Design and Understanding of Anisotropic Conductive Films(ACF) for LCD Packaging,〞 IEEE Transactions on Components, Packaging, and Manufacturing Technology, 1998.

28. Myung-Jin Yim, Kyung-Wook Paik, 〝The Contact Resistance and Reliability of Anisotropically Conductive Film(ACF),〞 IEEE Transactions on Components, Packaging, and Manufacturing Technology, 1999.