Patent 9899305 was granted and assigned to Taiwan Semiconductor Manufacturing Company on February, 2018 by the United States Patent and Trademark Office.
A semiconductor package structure is disclosed. The semiconductor package structure includes: a substrate having a front surface and a back surface; a chip-on-interposer structure mounted on the front surface of the substrate; a back side stiffener mounted over the back surface of the substrate and surrounding a projection of the chip-on-interposer structure from a back surface perspective; and a plurality of conductive bumps mounted on the back surface of the substrate.