Dynamic Analysis And Optimization Of Wire Bonder Base On Virtual Prototyping Technology

With the development of the integrated circuit industry, the welding speed and welding line quality of the wire bonding machine appear new demands and challenges. While the domestic development of wire bonding machine is slow, most of the wire bonders still rely on imports. ?Automatic bonding machine technology cooperation'is an international cooperation project of science and technology ministry which is undertaken by 45 Institute of China Electronics Technology Group developed the first domestic full-automatic bonding machine. Now the main problems for design large equipment are the long cycle of design and the higher cost in designing, but the development of virtual technology can better solve these problems. In this issue, we use virtual prototype technology to do some dynamic simulation and optimization on the wire bonding machine. Transducer part is the key component of the whole equipment, which plays a main role in the entire equipment's accuracy and bonding speed. We use a series of simulation software (MSC.ADAMS / PATRAN / NASTRAN) and the MATLAB software to create a virtual model.First of all, with the application of the basic mechanical theory of knowledge, we re-assemble the mechanical model in SOLIDWORKS according to the different movement relationship between different parts. Then we establish a basic geometric model in ADAMS by importing these parts into ADAMS with a correct file format.Secondly, according to the actual movement relationship, we use the constraints and driver library database of ADAMS to add quality information, such as constraints and drivers to the established geometric model. In order to check the constraints and drivers, we add a simple test driver function to the model, and then make some simulations and experiments on the established rigid body model. Once again, in order to get the flexible body models, we use MSC.PATRAN / NASTRAN software to do some finite element analysis on some key components of the wire bonder. Replacing the original rigid part with the flexible one, we can establish a rigid-flexible hybrid model. In order to find the problem, we did some experiments on the rigid-flexible hybrid model and compared the results with the original rigid model results that we have gotten before. Finally, by using the theoretical knowledge related to the design processing of transducer, we optimized the transducer which plays an important role in the whole wire bonding equipment. Replacing the original components with the optimized one, we did some simulations on the new model. In order to verify the accuracy, we compared the results with the results we have gotten before. At last we use MATLAB and ADAMS software to do some co-simulink experiments on the virtual prototyping.