Patent ID: 7816182

Claim:
A method of mounting first and second integrated circuit die on first and second generally oppositely facing sides of a leadframe die paddle, comprising: taping an active circuit area of the first integrated circuit die; attaching the taped region of the first integrated circuit die to the first side of the die paddle; electrically connecting contacts on the first integrated circuit die to first portions of each of a plurality of leads, wherein each of the first lead portions is offset from a plane including second lead portions of the respective leads; performing a first plasma cleaning process on the first integrated circuit die after the first integrated circuit die is attached to the first side of the die paddle but before the second integrated circuit die is mounted on the second side of the die paddle; taping a backside of the second integrated circuit die; attaching the taped region of the second integrated circuit die to the second side of the die paddle; electrically connecting contacts on the second integrated circuit die to the second portions of each of the plurality of leads; and performing a second plasma cleaning process on the second integrated circuit die after the second integrated circuit die is attached to the second side of the die paddle but before electrically connecting the contacts on the second integrated circuit die to the second lead portions.