Menu 6. How does the 9524 deal with LPISM in the barrels?
LPISM in the barrels is a significant problem in silk screen application methods. Because the silk screen squeegee forces LPISM into the holes, higher developer pressure is required to obtain clear holes. Spray coating with the 9524 does not result in significant amounts of LPISM in the barrels, as the mask is not forced into the holes as it is by the squeegee; therefore, lower developer pressure can be used, and process speed is improved. LPISM dams between fine pitch patterns are more easily held, under-cut during development is reduced and the surface cosmetics are improved because proper developing procedure can be maintained.
