發明
中華民國
100123951
I 477893
光罩之製造方法MANUFACTURING METHOD OF PHOTOMASK
國立成功大學
2015/03/21
一種新型態的光罩製作技術。首先,透過微米等級的製程製作出具有尖錐狀的立體陣列式結構,接著於尖錐狀立體陣列式結構表面塗佈光阻擋層與蝕刻阻擋層,最後經由蝕刻製程的控制,可以在立體結構的尖端處,產生特徵圖案為次微米甚至是奈米尺度的陣列式三維立體光罩。此一新型式的立體光罩,可減少了光罩的損耗、縮小曝光時光徑的擴散、以及增加光罩與光阻層間的貼合度。此一光罩如果搭配一奈米精密定位平台,可以複製小線寬且多變化的特徵圖形於基板上的光阻層,達到次微米與奈米尺度製成的目的。 A method for fabricating a new type of photo-masks which contain arrayed convex 3D micro-structures and are capable of sub-micrometer/nano-scaled patterning. This novel fabrication process starts from conventional micro-scale fabrication methods to create arrayed and convex micro-structures with sharp points or edges. A light-stopping layer and a cover layer are then deposited on top of these micro-structures. By adjusting etching parameters on these two layers, a 3D photo-mask with sub-micro/nano-patterning capability is obtained. This novel mask can reduce contact damages, narrow the diameter of probe beam, and be in good contact with the photoresist. Working along with a precision moving stage, this mask can yield a variety of complicate patterns with sub-micrometer/nanometer line-width.
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