Patent ID: 7989265

Claim:
A process for making a semiconductor system having multiple devices, including a first device and a second device, where each of the multiple devices has operational circuitry and opposing first and second surfaces, the process comprising: forming first and second electrical contacts at the first surface of each of the multiple devices; for each of the multiple devices, forming a third electrical contact at the second surface opposite the first electrical contact; for each of the multiple devices, electrically connecting the first electrical contact to the operational circuitry and not to any other electrical contacts; for each of the multiple devices, electrically connecting the second electrical contact to the third electrical contact at the second surface and not to any other electrical contacts at the second surface; stacking the first device and the second device such that the first surface of the second device is located adjacent the second surface of the first device, where the first electrical contact of the second device is aligned with the third electrical contact of the first device; and electrically connecting the first electrical contact of the second device to the third electrical contact of the first device.