Exploring Alternative 3D FPGA Architectures: Design Methodology and CAD Tool Support

This paper introduces a software supported methodology for exploring/evaluating 3D FPGA architectures. Two new CAD tools are developed: the 3DPRO for placement and routing on 3D FPGAs and the 3DPower for power/energy estimation on such architectures. The authors mainly focus their exploration on the total number of layers and the amount of vertical interconnects (or vias). The efficiency of the proposed architecture is evaluated by making an exhaustive exploration for via connections under the Energy X Delay Product criterion. Experimental results demonstrate the effectiveness of their solution, considering the 20 largest MCNC benchmarks.