SCOPE: “A Review of Mil Spec Wirebond Visual Inspection Criteria, Qualification and Process Controls”
Discussion Points:
• Wirebond visual source requirements for • Hybrids
• Monolithics
• Discrete Semiconductors
• Compare and Critique of wirebond inspection requirements
• Qual and Process controls
Summary
Performance Specs vs Mil Standards
ØPerformance Specifications
Ø General Hybrid Spec MIL-PRF-38534 FSC 5962
Ø General Specification for Microcircuits MIL-PRF-38535 FSC 5962
Ø General Specification for Semiconductor Devices MIL-PRF-19500 FSC 5961
ØMilitary Standards
Ø Standard Test Methods for Microcircuits MIL-STD-883L
ØStandard Test Methods for Semiconductor Devices MIL-STD-750 Ø This is the cousin of Mil-Std-883.
ØPerformance Specs encourage and allow for alternate verification testing methods to meet performance requirements and foster ingenuity and growth within the supplier base.
Ø A result of the Perry Initiative of the mid 1990’s
ØMil Standardsare rigid requirements …for Hybrids Test Methods in 883 and associated test conditions detail the exact testing required
