Automated Layout of Fabric Bricks Regular

As minimum feature sizes shrink into the deep-subwavelength range, manufacturing becomes increasingly diJ~cult, and the costs and complexity of standard cell ASIC design become prohibitive for all but the highest-volume products. Many manufacturing diJ3~culties owe to the irregularity of standard cellbased design; therefore, design using more regular logic fabrics becomes an attractive alternative to the standard cell paradigm. In this report, we outline an alternative CAD flow using a DFM-friendly regular logic fabric based on heterogenous yet highly regular structures called "bricks." In particular, we describe methods .for the automatic generation of brick layouts. We show that regularity requirements simplify the problem of brick generation and can be exploited to yield layout methods which allow us to make strong guarantees of completeness and optimality. Finally, we present experimental results and discuss possibilities for future work.