| 摘要 |
Disclosed are a package structure and a package method. The package structure comprises an IC bare die, having bare die pads formed on a surface; a flexible packaging substrate, having first pads formed on a first surface and second pads formed on a second surface; and a plurality of bumps, previously formed on the first surface of the flexible packaging substrate. The bumps have different heights, and correspond to the first pads and contact the bare die pads respectively. Pressing or heating is implemented to package the IC bare die. The package structure further comprises a printed circuit board, having a plurality of contact pads. The second pads of the flexible packaging substrate respectively contact with the contact pads via solders. Connection is implemented by pressing or heating. Extremely low stress is generated to the packaging substrate and the printed circuit board. |
