Event Detectors Interconnect Reliability Testing by Dr. John W. Sofia Analysis Tech Phone: (781) Fax: (781) Website:
Event Detectors Trends in Electronic Interconnects Larger numbers of interconnects / signals Smaller (less robust) mechanical size interconnects
Event Detectors Trends in System Costs Decreasing cost-performance ratio Increasing cost of system failure to end user
Event Detectors Major Causes of Electronic Failures Reynell, M Source: U.S. Air Force Avionics Integrity Program
Event Detectors Event Detectors: Test Systems for Interconnect Reliability Measurement Solder joints Separable connectors Crimp interconnects All advanced interconnects
Event Detectors Joint Failure Mechanism: Solder Joint Stress / Strain from Thermal Cycles
Event Detectors Joint Failure Mechanism: Solder Joint Stress / Strain from Vibration
Event Detectors Event Detector Applications: Interconnect design and development Product evaluation for reliability Process control and quality monitoring
Event Detectors Event Detector Application Industries Telecomunications: Motorola, Lucent, Ericson, Nokia, … Automotive: Ford, Chrysler, General Motors, … Computer: Intel, Sun, IBM, AMD, Compaq, … Aerospace Boeing, Lockheed, Rockwell, Hughes Medical: Medtronic, …
Event Detectors Event Detector Features 100% continuous electrical monitoring Conforms to testing standards: (Stds: IPC-785, ASTM) Sensitive to very short duration events Ignores environmental noise (EMI, RFI) Easy long-term unattended operation
Event Detectors Event Detector System Schematic
Event Detectors Scanning–Channel System Schematic
Event Detectors Event Detector Resolution
Event Detectors Scanning-Channel System Resolution
Event Detectors STD Event Detector Sensitivity / Noise Spectrum
Event Detectors Comparison of High / Low Compliance Event Detector Modes
Event Detectors Gaussian Distribution Plot
Event Detectors Failure Distribution Plot
Event Detectors Weibull Plot
Event Detectors Temperature Cycle Plot
Event Detectors Temperature Cycle Plot With Failures