Patent ID: 8473762
Filing Date: 2013-06-25
Classification: H01L

Abstract:
1. A heterogeneous three-dimensional stacked apparatus comprising: multiple layers arranged in a stacked configuration comprising a lower layer configured to receive a board-level voltage and one or more upper layers stacked above the lower layer; multiple tiles per layer, wherein each tile is designed to receive a separately regulated voltage; at least one layer in the one or more upper layers comprising voltage converters providing the separately regulated voltage converted from the board-level voltage; and a three-dimensional power delivery controller configured to control electrical distribution between the board-level voltage and the voltage converters of the at least one layer as a function of one or more of: supply voltage requirements, voltage conversion efficiencies, estimated IR drops, estimated tile temperatures, estimated current drawn, layer maximum power, and total maximum power for the heterogeneous three-dimensional stacked apparatus, wherein the three-dimensional power delivery controller selectively routes electrical power between the layers and the voltage converters, including disabling at least one of the voltage converters in response to exceeding one of a power and thermal limit.