Patent ID: 7875496
Filing Date: 2011-01-25
Classification: H01L,H05K,Y02P,Y10T

Abstract:
1. A flip chip mounting method for placing a semiconductor chip having a plurality of electrode terminals so that it is opposed to a circuit board having a plurality of connection terminals, and connecting the connection terminals of the circuit board electrically to the electrode terminals of the semiconductor chip, the method comprising: a holding step of holding the circuit board and the semiconductor chip; an arrangement step of aligning the connection terminals of the circuit board with the electrode terminals of the semiconductor chip while holding the connection terminals and the electrode terminals in a contact state, or aligning the connection terminals of the circuit board with the electrode terminals of the semiconductor chip while holding the connection terminals and the electrode terminals with a gap therebetween; a heating step of heating at least the circuit board or the semiconductor chip to at least a temperature at which solder powder in a solder resin composition formed of the solder powder and a liquid resin is melted; a supply and discharge step of supplying the solder resin composition to the gap across which the circuit board and the semiconductor chip are held, from at least one end face direction of the semiconductor chip, and simultaneously, discharging the solder resin composition in a direction other than at least one end face direction, by a capillary phenomenon; and a curing step of curing the resin in the solder resin composition, wherein in the supply and discharge step of the solder resin composition, the melted solder powder in the solder resin composition melted by heat provided in the heating step is moved by a flow of the liquid resin through the gap across which the circuit board and the semiconductor chip are held, and the solder powder is self-assembled and grown between the plurality of connection terminals and the plurality of electrode terminals, thereby connecting the connection terminals electrically to the electrode terminals through the melted solder powder.