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JEDEC 22 Screening / Qualification

The types of qualification tests used to determine the reliability and quality of plastic encapsulated solid state devices used in transportation and/or automotive applications are divided into three different classes:

• Environmental — Devices are subjected to different varying environmental conditions. Variable environmental parameters include, but are not limited to, temperature, humidity, and barometric pressure.

• Mechanical — Devices are subjected to different destructive and non-destructive mechanical stresses including, but not limited to, vibration, twisting, and bending.

• Electrical — Devices are subjected to different electrical stresses including, but not limited to, different levels of supply voltages, threshold and non-threshold voltages.

Other than pre-conditioning, tests may be performed in any order. For more information about JEDEC standards visit their web site: www.jedec.org

JEDEC Standard No. 22 Qualification Testing for Plastic Encapsulated and Solid State Devices USED in Transportation/Automotive Applications

• Environmental Tests

  • Steady State Temperature Humidity Bias Life (Method A101)

  • Accelerated Moisture Resistance - Unbiased Autoclave (Method A102)

  • Temperature Cycling (Method A104)

  • Thermal Shock (Method A106)

  • Salt Atmosphere (Method Al107)

  • Bias Life (Method A108)

  • Highly Accelerated Temperature and Humidity Stress Test - HAST (Method A110)

  • Moisture Induced Stress Sensitivity for Plastic Surface Mount Devices (Method A112)

  • Preconditioning of Plastic Surface Mount Devices Prior to Reliability Testing (Method A113)

• Mechanical Tests

  • Physical Dimensions (Method B100)

  • Solderability (Method B102)

  • Vibration, Variable Frequency (Method B103)

  • Mechanical Shock (Method B104)

  • Lead Integrity (Method B105)

  • Resistance to Soldering Heat (Method B106 — Conditions A and B)

  • Resistance to Solvents (Method B107)

• Optical Component Test