... bondability for different palladium based finishes under different preconditioning environments. 1 Schematic of a thermosonic wire bonding machine The thermosonic bonding method, as schematically shown in Fig. 1 , is basically a combination of ultrasonic bonding with additional heat source...

...Yeau-Ren Jeng; Jeng-Haur Horng Wire bonding is a popular joining technique in microelectronic interconnect. In this study, the effects of applied load, surface roughness, welding power and welding time on bonding strength were investigated using an ultrasonic bonding machine and a pull tester...