Photoresist Bonding Agent

Pattern shape

Normal Process
PBA Process

* 未經PBA處理,銅表面氧化乾膜附著較差,邊緣不平整。

 

* 經PBA處理後可以增強銅表面與乾膜的附著力,乾膜邊緣平整呈現。

Test

PBA -Process  For Cu Metal Testing Result

Photoresist width:7  μm
Thickness:20 μm
OM Magnification:200X

Metal material

PBA -Process  For Glass SubstrateTesting Result

Photoresist width:2 μm
Thickness:20 μm
OM Magnification:200X

Nonmetal Material