Patent ID: 9741691
Date: 2017-08-22
CPC Classifications: H01L

Claim:
1. An apparatus for delivering power in a monolithic three-dimensional integrated circuit (3D-IC), comprising: a first die, with a first side of the first die adjacent to and in contact with power/ground bumps, and a second side of the first die comprising a dielectric layer; a second die stacked on the first die, with a third side of the second die in contact with the dielectric layer, and the second die separated from the power/ground bumps by the first die; at least a first bypass power/ground via formed in the first die, the first bypass power/ground via in contact with the power/ground bumps; and a vertical monolithic inter-tier via (MIV) configured to traverse the dielectric layer and couple the first bypass power/ground via to a power delivery network (PDN) in the second die, a combination of at least the first bypass power/ground via, the MIV, and the PDN in the second die to deliver power from the power/ground bumps to the second die.