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PCB Escape Routing and Layer Minimization for Digital Microfluidic Biochips


This paper introduces a multiterminal escape routing algorithm for the design of printed circuit boards (PCBs) that control digital microfluidic biochips (DMFBs). The new algorithm extends a negotiated congestion-based single-terminal escape router that has been shown to be superior to previous methods. It relaxes the pin assignment to allow pin groups to be broken up when doing so can reduce the number of PCB layers. Experimental results indicate that the improved method can reduce both the number of PCB layers and average wirelength compared to existing DMFB escape routers.

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