Feedback of Manufacturing Experience for DFM Design Rules

Abstract In many manufacturing areas, design rules are used to assist in design for manufacturing. These rules are often specific and formal, yet they are usually developed in an ad-hoc manner by design committees and/or design software vendors. This work describes a database architecture and a statistical modeling methodology that enable the formal capture of manufacturing experience as new or revised design rules. The method uses pass/fail or other quality data from the firm's own manufacturing experience to update design limits or to introduce new design rules.