Flip-chip package covered with tape
View Patent ↗A manufacturing method of a semiconductor device includes arranging a melted resin on a substrate, arranging a semiconductor chip on the melted resin, pressing the semiconductor chip and flip-chip mounting the semiconductor chip on the substrate, and hardening the melted resin with the melted resin being subjected to a fluid pressure and forming a resin portion.
1. A semiconductor device comprising:
a first semiconductor chip that is flip-chip mounted on a front surface of a substrate;
a second semiconductor chip that is flip-chip mounted on a back surface of the substrate;
a fluid hardened void restrained resin portion configured in accordance with a fluid pressure, formed from a melted under fill, wherein the resin portion is formed between the first and second semiconductor chips and the substrate;
a resin sheet that covers the first and second semiconductor chips and the resin portion;
a plurality of openings formed within the resin sheet extending from a top surface of the resin sheet to a top surface of the first and second semiconductor chips, wherein the plurality of openings enable vacuum absorption of the first and second semiconductor chips;
a plurality of electrodes disposed on the front surface and the back surface of the substrate; and
the first semiconductor chip and the second semiconductor chip are affixed to the substrate via the plurality of electrodes through a plurality of openings in the resin portion.
2. The device of claim 1 wherein the resin sheet has portions that are parallel with the top surface of the substrate and portions that are inclined formed between the portions that are parallel with the top surface of the substrate.
3. The device of claim 1 wherein a resin under fill is formed underneath the resin sheet, on the sides of the first and second semiconductor chips and underneath the bottom of the first and second semiconductor chips.
4. The device of claim 1 wherein a first solder ball is disposed on the front surface of the substrate and wherein the first solder ball is located outside of the resin sheet on a surface area void of conductive traces.
5. The device of claim 1 wherein a second solder ball is disposed on the back surface of the substrate and wherein the second solder ball is located outside of the resin sheet on a surface area void of conductive traces.