Study of components with micron features

• Main Authors: Huang-Ya Lin, 林晃業
• Other Authors: Wen-Bin Young
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/33320304988766953960

碩士 === 國立成功大學 === 航空太空工程學系碩博士班 === 93 === 　Injection molding is an important fabrication process for polymer plastics. It needs to be adjusted for modern products focusing on light weight, thin thickness, small volume and micro feature. This research uses the LIGA-LIKE lithography process to define the micro feature and the micro electroforming to form the mold insert with replicated micro feature. The mold insert is used in the experiment of injection molding. The effects of the injection molding process parameters on filling of microstructrures will be investigated. The scope is to obtain the feasible process parameters to replicate microstructrures completely. The result shows that the effects of mold temperature, melt temperature and packing pressure are more important on microstructrue filling. High temperature reduces viscosity of the plastics so that the plastic can fill the microstructrures easily. High packing pressure improves the plastic filling the microstructrures before the plastic solidification. However, the microstructures are difficult to be filled completely because of the problem of the air traps. The molding products with feature of 4μm line width and 3.4μm height microstructure can be achieved.