The use of a two layer photoimageable, aqueous processable, resist with an amphoteric binder in the layer laminated directly to a printed circuit board provides a permanent coating with improved adhesion throughout the lamination process while maintaining other desirable properties such as storage stability and circuit encapsulation.
                            使用双层光成像
水性抗蚀剂,并在层中加入两性粘合剂,直接层压到印刷电路板上,可提供一种永久性涂层,在整个层压过程中具有更好的附着力,同时还能保持其他理想特性,如存储稳定性和电路封装性。