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Electroform Beats Laser-cut Stencil in Comparison Study
February 23, 2006 |Estimated reading time: Less than a minute
COLORADO SPRINGS, Colo. — Photo Stencil released results of its Advanced Microfabrication Technology Xerox (AMTX) E-Fab electroform vs. laser-cut electroform nickel foil comparison study.
Performed by Heraeus, the study showed that the AMTX E-Fab electroform stencil produced better printing performance than the electroform nickel foil, which has apertures formed by laser-cutting. There have been debates in the past as to whether laser-cut electroform nickel foils offer comparable performance to electroform stencils. This study demonstrated a difference in consistency and yield, especially with finer-pitch features and lead-free paste, claims Bill Coleman, vice president of technology at Photo Stencil.
"Photo Stencil is the only Xerox-authorized stencil manufacturer to use the SMTX Electroform stencil technology, licensed under U.S. Patents 5,359,928 and 5,478,699, owned by Xerox," states Harry Williams, vice president and general manager of Xerox Corporation's Intellectual Property Organization.
Because of smooth aperture walls and improved solder paste release, the AMTX E-Fab electroformed stencil technology and manufacturing process were acquired from Xerox in 1998 for use exclusively in the SMT industry.