The influences of microetch,temperature and pH on deposit were discussed,and hence some suitable process conditions were obtained as follows: an optimum microetch solution of a mixed solution with the volume ratio of hydrogen peroxide to sulfuric acid being 1∶4,an optimum temperature 85～90 ℃ an.

Introduce one-step microetch cleaner ST-10 for photoresist adhesion and it s performances.

The factors which affect hydrogen peroxide s decomposition and the mechanism of hydro-gen peroxide s stabilization in microetchant has been described.

Comparative Study on Potassium Monopersulfate Compound and Sodium Persulfate in the PCB Micro-etch Field;

In this case,it is likely that some micro-etching holes can be found on the surface of the film.

Research on microetchant for black oxide pretreatment of PCB lining;