Patent ID: 6068174
Filing Date: 2000-05-30
Classification: B23K,H01L

Abstract:
A bonding machine for wire bonding leads of a Tape-Under-Frame (TUF) lead frame to bond pads on a front-side surface of an integrated circuit die attached to the TUF lead frame, a first set of the leads of the TUF lead frame extending substantially in a plane of a back-side surface of the die in order to support the die and terminating beyond an edge of the die in order to be wire-bonded to the bond pads on the front-side surface of the die, a second set of the leads of the TUF lead frame extending substantially in a plane of the front-side surface of the die in order to be wire-bonded to the bond pads on the front-side surface, the bonding machine comprising:a heat block for supporting and heating the die and the TUF lead frame;a clamp mechanism for fixedly holding the first and second sets of leads of the TUF lead frame against the heat block one set at a time; anda wire-bonding tool for wire-bonding the leads in each set of leads fixedly held against the heat block by the clamp mechanism to bond pads on the integrated circuit die.