Effects of Bath Composition and Current Density on the Electrodeposition Behavior of Fe–Ni Invar Alloy

Abstract Fe–Ni invar alloy (Fe 64–Ni 36 wt%) has a very low coefficient of thermal expansion (CTE) than any other metals. For this reason, it been used as fine metal mask (FMM) in RGB patterning OLED manufacture process. However, the resolution display is getting higher, thickness FMM thinner and then conventional extruded sheet cannot be directly. The electrodeposition can alternative for fabrication thin FMM. In study, were electrodeposited varying bath compositions current density. Also, effects ferric ion 3+ ), produced during on inert anode, behavior deposition investigated. Finally, with 36–40 wt% Ni obtained at 50 mA/cm 2 0.30 M Fe 2+ bath. back side front composition deposits analyzed to evaluate uniformity alloys. Generally, content higher that side. Graphical