Patent ID: 7629695

Claim:
A stacked electronic component, comprising: a substrate having electrode portions; a first electronic component adhered on said substrate, the first electronic component having first electrode pads connected to the electrode portions via first bonding wires; and a second electronic component adhered on said first electronic component by using an adhesive layer having a two-layer structure including a first layer disposed at and substantially covering a first electronic component side and a second layer disposed at and substantially covering a second electronic component side, the second electronic component having second electrode pads connected to the electrode portions via second bonding wires, wherein the first and second layers are made of a same material of thermosetting insulating resin, and the second layer has a modulus of elasticity larger than that of the first layer, wherein at least part of the first bonding wires are taken into a cured resin layer of the first layer, and a cured resin layer of the second layer is disposed between the first bonding wires and the second electronic component so as to prevent contact of the first bonding wires and the second electronic component, wherein: the first layer softens or melts at an adhesive temperature of said second electronic component, and has a viscosity within a range of about 1 kPa·s to 100 kpa·s at the adhesive temperature; and the second layer maintains a layered shape at the adhesive temperature of said second electronic component, and has a viscosity within a range of about 130 kPa·s or more at the adhesive temperature.