Semiconductor module and method of manufacturing semiconductor module

A semiconductor module comprising:

• a flexible resin substrate made of a polyimide resin;
• an adhesion layer provided on the resin substrate;
• a semiconductor element mounted face down to the resin substrate and fixed to the resin substrate through the adhesion layer;
• a via hole provided in the resin substrate to correspond to an element electrode of the semiconductor element;
• a module electrode provided to the resin substrate to be in contact with the element electrode of the semiconductor element through the via hole;
• and
• a protruding portion provided, around the element electrode or in a peripheral edge portion of the semiconductor element, on a surface of the semiconductor element,
• the semiconductor module being formed such that an interval between a front surface of the protruding portion and a surface of the resin substrate facing the front surface of the protruding portion is greater than an interval between a front surface of the element electrode and a surface of the resin substrate facing the front surface of the element electrode.

A method of manufacturing a semiconductor module, comprising:

• preparing a resin substrate having a surface provided with an adhesion layer, the resin substrate being provided with a via hole corresponding to an element electrode of a semiconductor element that is to be mounted, the resin substrate including an escape portion configured to prevent flow of the adhesion layer caused by a protruding portion, the protruding portion being provided, around the element electrode or in a peripheral edge portion of the semiconductor element, on the surface of the semiconductor element;
• providing the semiconductor element while pressing the semiconductor element against the resin substrate such that the element electrode of the semiconductor element corresponds to the via hole;
• and
• providing an electrode to the via hole of the resin substrate, to be contact with the element electrode of the semiconductor element.