The Calibre Auto-Waivers tool provides automated recognition and removal of waived design rule violations in external IP, eliminating redundant error debugging while ensuring that all waived errors are properly identified during full-chip verification.
Design rule waivers negotiated between intellectual property (IP) designers and foundries are rarely transferred to IP customers in a consistent manner, or in a format that allows for easy identification of the waived errors during DRC of the integrated design. Consequently, waived IP errors often reappear at the full chip level, indistinguishable from other DRC violations.
