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Gold wire ball welding inner lead welding
The welding process of connecting the metallized circuit leads or electrodes on a circuit chip to the metal lead frame or shell lead wire of the assembled chip. The inner lead welding process is a welding process after the completion of chip welding, commonly used methods include hot pressing welding, ultrasonic pressing welding, thermal ultrasonic welding (ball welding), planar welding, and beam lead welding.