ACORN: a system for CVS macro design by tree placement and tree customization
IBM Journal of Research and Development
KWIRE: a multiple-technology, user-reconfigurable wiring tool for VLSI
IBM Journal of Research and Development
Finding the optimal variable ordering for binary decision diagrams
DAC '87 Proceedings of the 24th ACM/IEEE Design Automation Conference
Fast, small, and static combinatorial CMOS circuits
DAC '87 Proceedings of the 24th ACM/IEEE Design Automation Conference
IEEE Transactions on Computers
Finding the Optimal Variable Ordering for Binary Decision Diagrams
IEEE Transactions on Computers
PALACE: a layout generator for SCVS logic blocks
DAC '90 Proceedings of the 27th ACM/IEEE Design Automation Conference
Vanguard: a chip physical design system
DAC '86 Proceedings of the 23rd ACM/IEEE Design Automation Conference
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Differential cascode voltage switch (DCVS) trees are high performance, high functionality CMOS circuits, which, because they have a large number of inputs and internal connections, are difficult to wire on a large scale. Wirability is substantially improved by local customization at the tree level. This paper describes a DCVS customization procedure that exploits the fact that a Boolean function has more than one physical realization. Using ACORN, an automated physical design system based on this concept, we have placed and wired several designs, the largest of which is a group of three interconnected macros comprising approximately 800 DCVS trees.