Manufacturing method and a related stackable chip package
A manufacturing method is applied to set a stackable chip package. The manufacturing method includes encapsulating a plurality of chips stacked with each other, disposing a lateral surface of the stacked chips having conductive elements onto a substrate, disassembling the substrate from the conductive elements when the stacked chips are encapsulated, and disposing a dielectric layer with openings on the stacked chips to align the openings with the conductive elements for ball mounting process.
1. A stackable chip package, comprising:
a plurality of chips stacked as stacked chips and encapsulated via a first encapsulation, the stacked chips being encapsulated via a second encapsulation on a substrate, the stacked chips having conductive elements exposed out of the first encapsulation and the second encapsulation by a removal of the substrate;
a dielectric layer disposed on the stacked chips, the dielectric layer having openings aligned with the conductive elements;
at least one redistribution layer disposed inside the openings to contact the conductive elements; and
at least one external terminal disposed on the at least one redistribution layer for providing an electrical transmission channel of the stackable chip package;
wherein the plurality of chips are stacked with each other by contacting a top surface of one chip against a bottom surface of another chip, and the conductive elements are disposed on a lateral surface of the stacked chips.
2. The stackable chip package of claim 1 , wherein the stacked chips are turned over to face the conductive elements upward for being encapsulated.
3. The stackable chip package of claim 1 , wherein an edge of the stacked chips is diced to align the conductive elements on a lateral surface of the stacked chips.
4. The stackable chip package of claim 3 , wherein other edges of the stacked chips are diced for edge alignment.
5. The stackable chip package of claim 1 , wherein the substrate comprises a metal carrier and a releasing film, the stacked chips are disposed on the metal carrier via the releasing film, and the releasing film is removed to disassemble the metal carrier from the stacked chips.
6. The stackable chip package of claim 1 , wherein a dielectric film is disposed on the stacked chips, and further etched to form the dielectric layer having the openings in accordance with position of the conductive element.