Patent ID: 7879647

Claim:
A method comprising: mounting a first semiconductor chip over a wiring substrate, the first semiconductor chip including a plurality of first bonding pads, and the wiring substrate including a plurality of electrodes; stacking a second semiconductor chip over the first semiconductor chip, the second semiconductor chip including a plurality of second bonding pads; performing first wiring bonding in which each of the first bonding pads of the first semiconductor chip is connected to an associated one of the electrodes of the wiring substrate via a first wire; performing second wiring bonding in which each of the second bonding pads of the second semiconductor chip is connected to an associated one of the electrodes of the wiring substrate via a second wire; and one of the first wiring bonding and the second wiring bonding being carried out by use of a reverse bonding method in which one of the first and second wires is first bonded to an associated one of the electrodes of the wiring substrate and is then bonded to an associated one of the first and second bonding pads of the first and second semiconductor chips, and the other one of the first wiring bonding and the second wiring bonding being carried out by use of a forward bonding method in which one of the first and second wires is first bonded to the associated one of the first and second bonding pads of the first and second semiconductor chips and is then bonded to the associated one of the electrodes of the wiring substrate.