Patent ID: 7348220

Claim:
A resin-encapsulated type semiconductor package-producing method comprising feeding a powdery or granular resin composition into a weighing pot and weighing the resin composition, feeding the resin composition from the weighing pot to an agitating pot having a heater, agitating and melting the resin composition in the agitating pot, taking out the agitated and melted resin composition and forming it in the form of a package under pressure, fitting a lead frame or a tape substrate on which semiconductor chips or electronic parts are attached to a cavity of an upper molding die unit of a molding die having a heater, fitting the preshaped resin composition formed in the package shape to a compression plunger inside a cavity of a lower molding unit, after clamping the molding die, obtaining an integrally molded body by encapsulating the semiconductor chips or electronic parts and the lead frame or tape substrate through pressing the resin composition with the compression plunger and molding and curing the resin composition, and taking out the integrally molded semiconductor package from the molding die.