Patent ID: 6530512
Filing Date: 2003-03-11
Classification: B23K,H01L,H05K

Abstract:
A wire bonding apparatus for connecting an IC lead frame and an IC chip mounted on the IC lead frame with a metal wire, the wire bonding apparatus including:a heat block; a platen disposed on the heat block as a heat transfer element and having a surface transferring heat to lead frames, the heat block heating the platen; a heating part on a first part of the surface of the platen for heating a first IC chip and a first IC lead frame, a first upper surface of the heating part having a shape conforming to the first IC lead frame; and a first preheating part on a second part of the surface of the platen and having a second upper surface for preheating a second IC chip and a second IC lead frame that are next to be heated by the heating part, wherein a third part of the surface of the platen has a third upper surface next to the first preheating part, the third upper surface is closer to the heat block than the second upper surface, and the second upper surface is closer to the heat block than the first upper surface.