Using ATPG for clock rules checking in complex scan designs

  • Authors:
  • P. Wohl;J. Waicukauski

  • Affiliations:
  • -;-

  • Venue:
  • VTS '97 Proceedings of the 15th IEEE VLSI Test Symposium
  • Year:
  • 1997

Quantified Score

Hi-index 0.00

Visualization

Abstract

Structured Design-For-Testability (DFT) employs automated Design-Rules-Checking (DRC) to ensure a design is testable and test patterns can be produced using Automated Test Pattern Generation (ATPG). Central to DRC are ATPG-related clock rules. This paper defines a robust set of clock rules and their implementation for scan designs. It then extends clock-rule-violation detection beyond test requirements, which provides fast clock verification early in the design cycle, complementing the more complex and slower timing tools. Results on a large microprocessor design show the applicability of ATPG-based timing verification.