Patent ID: 6607112
Filing Date: 2003-08-19
Classification: B23K,H01L

Abstract:
A wire bonding apparatus comprising an XY axis driving mechanism for driving an XY stage, a Z axis driving mechanism for driving a capillary, and controlling means to connect a wire between an electrode on a semiconductor chip and a package by controlling said XY stage and capillary so that they go along a target path specified in advance;wherein said apparatus further comprises a composite target path generating means for generating a composite target accelerating path as part of said target path for a reciprocating movement of either one or both of said XY stage and capillary; said composite target accelerating path including: a first wave, a second wave subsequent in time to said first wave and a third wave subsequent in time to said second wave; wherein the amplitude of said first and third waves project in a direction opposite of said second wave; said second wave being wider in width as to time scale than that of said first and third waves, such that the deceleration part of said composite target accelerating path in a go path of said reciprocating movement and the acceleration part of said composite target accelerating path in a return path of said reciprocating movement are one continuous path in said second wave.