Embedded package and method of manufacturing the same
View Patent ↗An embedded package in which active elements, such as semiconductor chips, are embedded within a package substrate. The semiconductor chips, embedded within a dielectric layer, are coupled with circuit wires to ensure electrical and signal continuity. When connections between the semiconductor chip and the package substrate are performed in different directions, there is a reduction in overall interconnection area, connection reliability is improved, leakage currents are reduced, and higher device yields can be realized.
1. An embedded package, comprising:
a package substrate having a core having a first circuit wire pattern and a second circuit wire pattern formed on outer surfaces of the core, wherein the first circuit wire pattern formed on a first surface of the core and the second circuit wire pattern formed on a second surface that opposes the first surface of the core;
a semiconductor chip formed on the first surface of the core of the package substrate;
first and second bonding pads formed on the semiconductor chip;
a dielectric layer having a first metal pattern formed on one surface of the dielectric layer and, the dielectric layer configured to cover the semiconductor chip, wherein the dielectric layer comprise open regions through which parts of the first and the second circuit wire patterns are exposed;
a first connection wire pattern directly connects between the first bonding pad and the first circuit wire pattern of the core, wherein the first connection wire pattern contacts with the first bonding pad and vertically extends along the outer surface of the semiconductor chip to contact with the first circuit wire pattern; and
a second connection wire pattern directly connects between the second bonding pad and the first metal pattern of the dielectric layer, wherein the second connection wire pattern vertically penetrates the dielectric layer.
2. An embedded package, comprising:
a package substrate configured to include a core a first having circuit wire pattern and a second circuit wire pattern formed on outer surfaces, wherein the first circuit wire pattern formed on a first surface of the core and the second circuit wire pattern formed on a second surface of the core, wherein the package substrate has a cavity;
a semiconductor chip located in the cavity of the package substrate, wherein a top surface of the semiconductor has same level with a top surface of the core of the package substrate;
a first bonding pad and a second bonding pad formed on the semiconductor chip;
a dielectric layer configured to cover the semiconductor chip and the package substrate and to have open regions formed in the dielectric layer through which parts of the first and the second circuit wire patterns are exposed;
a first metal wire pattern formed on one surface of the dielectric layer;
a first connection wire pattern directly connects between the first bonding pad and the first circuit wire pattern formed on the core in a horizontal direction, wherein the first connection wire pattern has same level with the first circuit wire pattern; and
a second connection wire pattern directly connects between the second bonding pad and the first metal wire pattern formed on the dielectric layer, wherein the second connection wire pattern vertically penetrates the dielectric layer.
3. A method of manufacturing an embedded package, comprising:
providing a package substrate configured to include a core having a first circuit wire pattern and a second circuit wire pattern formed on outer surfaces of the core, wherein the first circuit wire pattern formed on a first surface of the core and the second circuit wire pattern formed on a second surface of the core;
disposing a semiconductor chip, including a first bonding pad and a second bonding pad, on the first surface of the core of the package substrate;
forming a first connection wire pattern configured to directly connect together the first circuit wire pattern formed on the same layer with the semiconductor chip and the first bonding pad, wherein the first connection wire pattern horizontally contacts with the first bonding pad and extends along an outer surface of the semiconductor chip and the first surface of the core;
forming a dielectric layer having a contact hole configured to cover the semiconductor chip and the package substrate while exposing the second bonding pad by the contact hole;
forming a second connection wire pattern by filling the contact hole, wherein the second connection wire pattern has same level with a top surface of the dielectric layer; and
forming a first metal wire pattern on the dielectric layer to directly connect with the second connection wire pattern.
4. The method of claim 3 , wherein the step of disposing the semiconductor chip on the first surface of the core of the package substrate further comprises the step of:
adhering the semiconductor chip over the core with an adhesion layer interposed between the semiconductor chip and the core.
5. The method of claim 3 , wherein the first connection wire pattern is formed by an operation selected from the group of operations consisting of:
a wire bonding,
a plating method, and
a conductor printing method using jetting technology.
6. The method of claim 3 , wherein the dielectric layer is formed by lamination using pressurization and heating.