Yield Improvement of TFT-LCD Thinning Glass Cutting

• Main Author: 李威萱
• Other Authors: 呂宗熙
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/95550380644727791110

碩士 === 國立交通大學 === 工學院精密與自動化工程學程 === 101 === This study aims to optimize the cutting process of thinning TFT-LCD display glass with the Taguchi method. I find the top 5 experiment factors by fishbone diagram and C&;E matrix, including cutting wheel angle，cutting wheel teeth，cutting wheel depth，scribe speed，scribe load. This thesis executes the experiment by L18(21X37) orthogonal arrays including one 2-level factor and four 3-level factor. The response variable is designated as the cutting vertical depth of glass cross sections. Response variables are transformed into signal - to - noise ratios to investigate the relationship between effects of every factor and the change of factor levels. Finally,optimized cutting wheel types and cutting process recipes are determined. The test result of this thesis shows the defect rate is thus reduced by 0.115%.