Abstract :
The Stickizer, a tool for conversion from layout to symbolic, is presented. Thinning, a method borrowed from mathematical morphology is used to achieve Stickizing of polygons. Stickizer´s main features are applicability to Manhattan-geometry and 45 degrees -geometry layouts, extraction of transistors of any shape, strict symbolic/layout equivalence for Manhattan-geometry cells (reversibility of the translation), adaptation of 45 degrees -geometry cells to Manhattan compactors, independence from the technology, hierarchy handling with minimal user intervention, adaptability to a wide range of layout formats and design conventions, and reasonable execution time. It has been used on over 300 cells with sizes up to 6000 transistors and 2 Mbit.<>
Keywords :
CMOS integrated circuits; VLSI; circuit layout CAD; software packages; 45 degrees -geometry layouts; CMOSIC; IC layout; Manhattan compactors; Manhattan-geometry; Manhattan-geometry cells; Stickizer; layout to symbolic converter; mathematical morphology; thinning; CMOS technology; Flexible printed circuits; Geometry; Investments; Libraries; Morphology; Shape; Skeleton; Time of arrival estimation; Wires;
Conference_Titel :
Computer-Aided Design, 1989. ICCAD-89. Digest of Technical Papers., 1989 IEEE International Conference on
