Burn In - Scenario 1

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Testing For: 
  • It applies when the product specification calls for a reliability growth program of equipment(electronic, electromechanical and mechanical hardware as well as software) or when it is known that the design is unlikely to meet the requirements without improvement
  • Solder joints, glued interfaces and other parts that are stressed by differences in CTE
    Design for Reliability Processes - Early in the design processes, Highly Accelerated Life Testing (HALT) is utilized to expose early prototypes and existing components to the full range of expected operating conditions, within a controlled environment
  • This Handbook is intended for use by both contractor and government personnel during the conceptual, validation, full scale development, production phases of an equipment/system life cycle.
  • Assemblies (SRU)Equipment or Unit (LRU/LRM)
  • IEC 61014
  • IPC-9592A
  • MIL-HDBK338B
  • MIL-HDBK-344A
  • MIL-HDBK-2164A
  • MIL-STD-810G
  • MIL-STD-883J
  • MlL-STD- 1540C
  • Highly Accelerated Life Testing (HALT) Procedure - EAD-460/12/00
  • EMBRAER Quality Requirements forSuppliers
  • Shenzhen Metrology and Quality (SMQ)
Failure Type : 
F(t) = failures accelerated by High Temperature Dwells (chemical type failures)
High temperature Burn-in
Typical Failures Detected: 
  • Changes in component and unit dimensions
    stray capacitances.
  • Differing expansion of materials
  • Noise floor can shift, supplies drift, causing signal levels and timing to shift
  • Pushes software timing to limits.
  • Thermal compensation algorithms pushed to limits.
  • Components that are wrong value - may work at ambient, but pushing temperature forces malfunction.
  • Manufacturing errors that push tolerance stack up to one side or the other. Components that don’t meet spec value or dynamic range
Qualmark Accelerated Reliability System: 
Testing Scenario Type: 
Burn In

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