Abstract: Several investigators have proposed controlling the size and shape of the weld pool based on the weld pool oscillations. This paper proposes two models that could be used to predict the weld ...

Abstract: Sensors of the weld in progress are necessary to provide feedback control of the arc welding process. Signal processing of the arc voltage and current is proposed as a dynamic sensor of the ...

Abstract: The Pb/Sn electroplating process for C4 technology requires the ability to etch Ball Limiting Metallurgy (BLM) in the presence of the Pb/Sn bumps. Upon etching, a surface corrosion layer is ...