|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XXII
||Multistep Electroplating for the Uniform Composition of Invar Electroplating
||Na-Young Kang, Jaeho Lee
|On-Site Speaker (Planned)
Invar is the Fe-Ni alloy (64Fe36Ni) which has the low coefficient of thermal expansion. Due to this property it has been used in many applications which need tight size restrictions in wide range of temperature. Recently invar has been used as shadow mask in OLED industry. As the resolution of OLED was increased, the thickness of shadow mask was reduced. The limit of extruded invar alloy is 20 micron and it cannot be used in high resolution OLED. Electrodeposition of invar can vary the thickness of film and can solve the problems. However it is not easy to obtain the uniform composition. In this study, invar was electroplated varying of current density as well as the bath composition to obtain uniform composition of electrodeposits. The composition of invar films from front to back of deposits were analyzed with FESEM and EDS. The phase of deposits were investigated using XRD.