Semiconductor apparatus with decoupling capacitor

1. A semiconductor apparatus comprising:

an organic material substrate;

a die pad formed on a surface of the organic material substrate and having a semiconductor chip mounting area on which a semiconductor chip is mounted;

ground terminals which are to be grounded;

power supply terminals which are supplied with electrical power;

the surface of the organic material substrate including a bonding-wire area, wherein bonding wires are coupled to conductive patterns formed on the organic material substrate;

the conductive patterns including

first conductive patterns which are connected to the ground terminals and

second conductive patterns which are connected to the power supply terminals; and

chip capacitors which are arranged between the semiconductor chip mounting area and the bonding-wire area so that a decoupling capacitor is provided therebetween;

wherein the chip capacitors are mounted in respective cavities formed in the substrate;

whereby noises generated between the first and second conductive patterns are reduced and short circuits between the capacitors and the bonding wires are prevented; and

wherein the chip capacitor mounting pads are arranged at bottoms of the cavities, each of which is provided with side wall plating electrically connected to the corresponding first and second conductive patterns.

2. A semiconductor apparatus comprising:

an organic material substrate;

a die pad formed on a surface of the organic material substrate and having a semiconductor chip mounting area on which a semiconductor chip is mounted;

ground terminals which are to be grounded;

power supply terminals which are supplied with electrical power;

the surface of the organic material substrate including a bonding-wire area, wherein bonding wires are coupled to conductive patterns formed on the organic material substrate;

the conductive patterns including

first conductive patterns which are connected to the ground terminals and

second conductive patterns which are connected to the power supply terminals; and

chip capacitors which are arranged between the semiconductor chip mounting area and the bonding-wire area so that a decoupling capacitor is provided therebetween;

wherein the chip capacitors are mounted in respective cavities formed in the substrate;

whereby noises generated between the first and second conductive patterns are reduced and short circuits between the capacitors and the bonding wires are prevented; and

wherein, in a least one of the cavities, one of the first conductive patterns and one of the second conductive patterns each extend to the bottom of the cavity and there make contact to respective chip capacitor located therein.