Patent classifications
H01L2224/849
APPARATUS FOR BONDING CLIP, METHOD OF BONDING CLIP, AND SEMICONDUCTOR PACKAGE INCLUDING SEMICONDUCTOR CHIP TO WHICH CLIP IS BONDED USING THE METHOD
The present invention relates to an apparatus for bonding clips, a method of bonding clips, and a semiconductor package including semiconductor chips to which the clips are bonded using the method, and more particularly, to an apparatus for bonding clips, a method of bonding clips, and a semiconductor package including semiconductor chips to which the clips are bonded using the method, wherein the clips are sequentially bonded to the semiconductor chips by 1 unit so that a pitch difference between a lead frame array and a clip array is separately corrected to be the same and thereby, misalignment may be minimized so as to increase bonding accuracy of the clips to the semiconductor chips.
Solder bump cleaning before reflow
Generally, the subject matter disclosed herein relates to methods for forming modern sophisticated semiconductor devices, and more specifically, methods wherein substantially lead-free solder bumps may be formed above a contact layer of a semiconductor chip. One illustrative method disclosed herein includes forming a solder bump above a metallization layer of a semiconductor device, removing an oxide film from a surface of the solder bump, and, after removing the oxide film, performing a solder bump reflow process in a reducing ambient to reflow the solder bump.
Solder bump cleaning before reflow
Generally, the subject matter disclosed herein relates to methods for forming modern sophisticated semiconductor devices, and more specifically, methods wherein substantially lead-free solder bumps may be formed above a contact layer of a semiconductor chip. One illustrative method disclosed herein includes forming a solder bump above a metallization layer of a semiconductor device, removing an oxide film from a surface of the solder bump, and, after removing the oxide film, performing a solder bump reflow process in a reducing ambient to reflow the solder bump.