David J. Hathaway

Learn More
In ultra-deep sub-micron technologies, modeling waveform shapes correctly is essential for accurate timing and noise analysis. Due to process and environmental variations, there is a need for a variational waveform model that is compact, efficient and accurate. The model should capture correlations due to common dependence on process parameters. This paper(More)
Throughout its history, from the early four-circuit gate-array chips of the late 1960s to today’s billion-transistor multichip module, IBM has invested in tools to support its leading-edge technology and high-performance product development. The combination of demanding designs and close cooperation among product, technology, and tool development has given(More)
In this paper we survey major problems faced by EDA tools in tackling deep submicron (DSM) design challenges like: crosstalk, reliability, power, and interconnect dominated delay. We discuss the need for rethinking quality models used in EDA tools to allow early and reliable planning, estimation, analysis, and optimization. Key design quality metrics from a(More)
Recent advances in integrated circuit teclinology have imposed new requirements on the chip physical design process. At the same time that performance requirements are increasing, the effects of wiring on delay are becoming more significant. Larger chips are also increasing the chip wiring demand, and the ability to efficiently process these large chips in(More)
We introduce a generalized, efficient, and accurate power abstraction model and generation techniques for complex IP blocks. This is based on the contributor based power modeling concept, which exploits the nature of power consuming components in a design being inherently separable. The generated power abstraction is Process, Voltage and Temperature (PVT)(More)
An ideal power supply network would provide a steady unvarying power to all components of a system. But because physical power supply networks are not perfect, they also communicate unintended information (in the form of power supply noise) between different components of a system. This power supply noise modulates various aspects of the behavior of the(More)
  • 1