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This paper presents a unified platform for design and verification of mixed-signal systems based on the SystemC AMS standard. The platform relies on a top-down design methodology. In this methodology, several hierarchical abstraction views of the system are considered. These abstraction levels are: system, functional, macromodel and circuit levels. We introduce a simple and efficient method to implement...
This paper presents a new method to automatically generate hierarchical placement rules, which are crucial for a successful analog placement. The method is based on a novel symmetry computation method, introducing the structural signal flow graph. Five types of proximity, matching and symmetry constraints are determined. According to the priority of the constraint types, a constraint requirement graph...
This paper studies the impact of intra-die random variability on low-power digital circuit designs, specifically, circuit timing failures due to intra-die variability. We identify a new low-Vdd statistical failure mode that is strongly supply-voltage dependent and also introduce a simple yet novel method for quantifying the effects of process variability on digital timing - a delay overlapping stage...
For several decades, the output from semiconductor manufacturers has been high volume products with process optimisation being continued throughout the lifetime of the product to ensure a satisfactory yield. However, product lifetimes are continually shrinking to keep pace with market demands. Furthermore there is an increase in dasiafoundrypsila business where product volumes are low; consequently...
A speed independent circuit has the property that the relative speed of operation of the various logic elements does not affect the over-all behavior of the circuit. Such circuits have properties which are of particular importance in the design of reliable asynchronous circuits. An Arithmetic Control for a digital computer is one type of logic which can profitably use these characteristics. The design...
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