Manufacturing method of laminated substrate, and manufacturing apparatus of semiconductor device for module and laminated substrate for use therein

The invention presents a manufacturing method of laminated substrate capable of realizing small size of portable electronic appliances. Prepreg 141 is a thermosetting resin which holds a plate form in first temperature range, has a thermal fluidity in second temperature range, and is cured in third temperature range, and integrating process (118) includes softening (120) of heating prepreg (141) to second temperature range, and softening the resin impregnated in prepreg (141), forced flowing (122) of compressing prepreg (141) before prepreg (141) comes to third temperature range, and forcing the resin to flow into space and gap formed among semiconductor (105), resistor (106), and substrate (101), and hardening (123) of heating prepreg (141) to third temperature range. As a result, without using intermediate material, space and gap formed among semiconductor (105), resistor (106), and substrate (101) can be securely filled with resin.