Patent ID: 6103551
Filing Date: 2000-08-15
Classification: H01L,H05K

Abstract:
A method for manufacturing a semiconductor unit, comprising a step of forming a bonding layer, which comprises at least two different kinds of conductive adhesive, between protruding electrodes of a semiconductor device and terminal electrodes of a circuit board, wherein the bonding layer is formed by the steps of transferring a first conductive adhesive comprising conductive fillers, which comprise at least two kinds of atoms, onto the protruding electrodes of the semiconductor device with the semiconductor device in the face down condition; and then transferring a second conductive adhesive comprising conductive fillers, which comprise one kind of atoms, onto the terminal electrodes of the circuit board separately; and then mounting said semiconductor device comprising said protruding electrodes face down onto said terminal electrodes of said circuit board through the bonding layer to form the semiconductor unit.