一.Product Description AXE-662 is a copper chloride series microetching fluid, which can produce a layer of uneven roughening surface on copper and copper alloy surfaces, which is suitable for dry film, green oil and hole plugging process of BGA or FLIP, and can be applied to the pretreatment of chemical tin and electroless nickel gold (wet film and green oil) of FPC and PCB. 二.product advantages 1. The bite amount is stable, rough, Ra value is 0.2-0.6μm, and it can provide strong adhesion to the copper surface such as solder mask green oil and dry/wet film Good adhesion to the copper surface. 2. The production control is simple and easy to control. 3. Spray type and soak type, both can be used. 4. Good chloride ion resistance, can maintain stable micro-etching efficiency.