Project(50675227) supported by the National Natural Science Foundation of China;Project(07JJ3091) supported by Natural Science Foundation of Hunan Province, China;Project(2007001) supported by the State Key Laboratory of Digital Manufacturing Equipment and Technology;Project(2009CB724203) supported by the Major State Basic Research Development Program of China
The driving voltage and current signals of piezoceramic transducer (PZT) were measured directly by designing circuits from ultrasonic generator and using a data acquisition software system. The input impedance and pow...
Projects(50390064, 50675227) supported by the National Natural Science Foundation of China;Project(2003CB716202) supported by the National Basic Research Program of China
During the aluminum wire wedge bonding, the ultrasonic power and bonding strength were obtained. Based on those data, the relationship between ultrasonic power and bonding strength was studied. The results show that: ...