Title :
Studies of electrical characteristics of wire bonder transducer by clamp condition and on/off of bonding tool
Author :
Ming´an, Guang ; Lei, Han ; Li Hanxiong
Author_Institution :
Central South Univ., Changsha
Abstract :
Dynamical characteristics of transducer are important for ultrasonic bonding quality. The admittance curves of transducer were studied, by tool on/off test and clamping tightness changing test. The model of equivalent circuit is used for parameter analysis, based on admittance circle of the transducer. The results show that additive mass of bonding tool and clamp tightness may not affect resonance frequency of a PZT transducer so much, but bonding tool is one of main factors affecting performance, because it changes the distribution and dissipation of energy in the PZT transducer. These results will be helpful for optimization of the ultrasonic bonding transducer
Keywords :
lead bonding; piezoelectric transducers; ultrasonic bonding; ultrasonic transducers; PZT transducer; admittance curves; bonding tool; clamp condition; clamping tightness changing test; transducer dynamical characteristics; ultrasonic bonding quality; ultrasonic bonding transducer; wire bonder transducer; Admittance; Bonding; Circuit testing; Clamps; Electric variables; Equivalent circuits; Resonance; Resonant frequency; Ultrasonic transducers; Wire;
Conference_Titel :
High Density Microsystem Design and Packaging and Component Failure Analysis, 2006. HDP'06. Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0488-6
DOI :
10.1109/HDP.2006.1707570
