如何防止FPC贴膜起卷

How to prevent FPC from rolling up after dry film pasted

由于FPC基材轻薄柔软,在干膜贴膜后基材往往会弯曲起翘起卷,严重时卷成"管状"。基材变形后给曝光作业带来不少麻烦,要将基材打开压平后才能进行曝光,这样的作业方式导致作业效率非常低下。另外由于基材弹性弯曲,尖锐的基材角部划伤照相底版的几率增大,带来严重的品质隐患。本文对干膜贴膜过程进行分析,为控制FPC贴膜起卷作出了一套控制方法。

FPC is very easy to roll up after dry film pasted on the thin and soft material. Sometimes FPC is rolling up like a tube. It is difficult to the exposure process, and press down first before put into exposure machine. Otherwise because the FPC is bended resiliently, the sharp angle will stab the photo tool, so it also makes a serious hazardous effect. Dry film pasting was analyzed in this paper, and a way to prevent FPC from rolling up was found.