On designing via-configurable cell blocks for regular fabrics

  • Authors:
  • Yajun Ran;Malgorzata Marek-Sadowska

  • Affiliations:
  • University of California, Santa Barbara, CA;University of California, Santa Barbara, CA

  • Venue:
  • Proceedings of the 41st annual Design Automation Conference
  • Year:
  • 2004

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Abstract

In this paper we describe the design process of a via-configurable block for regular fabrics. The block consists of via-configurable functional cells, via-decomposable flip-flops, and via-configured sizable repeaters. The fabric has fixed layers up to M2. An M1-M2 via mask is used to define the block's functionality. The upper-level metals are customized. Compared to other structures based on LUTs or PLAs, and fixed flip-flops, our block has much smaller area, higher performance and lower power consumption.