Get in touch with PCBark Company
Interactive Tool / Annular Ring
Annular Ring & Minimum Hole Checker
Will your pad survive drill registration? Enter pad and finished-hole size and check the external annular ring against your IPC class — the flag that fills instant DFM reports with false positives.
External annular ring per IPC-2221 / IPC-6012. Registration loss accounts for drill-to-pad tolerance; Class 3 builds target extra design margin. Verify against your fabricator’s stated capability.
