Etching - 軟板(FPC)蝕刻

By etching resisting selecting then apply corrosion agent called etching solution that non-protected copper will be moved away by chemical reaction.  

Those protected area will leave there.

蝕刻:曝光完成的材料基板經過蝕刻藥水沖洗,會將沒有乾膜保護的部分銅層蝕刻去除,而留下有硬化乾膜保護的線路。

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