PCBA Materials for Harsh Environments, Phase 2

Jim Gryga, Foresite
Project Co-Leader

Dr. Helmut Schweigart, Zestron
Project Co-Leader

Call-for-Participation Webinar

Project Statement and Statement of Work


The iNEMI Roadmap and Technical Plan emphasize the need for extreme reliability requirements in electronics to meet warranty requirements and mission critical applications. This is especially true for electronic assemblies operating in harsh environments; including high and low extremes of temperature and humidity coupled with vibration.

When new materials are considered, the material suppliers must be able to test those materials against a set of standards and established tests. However, most standards are not written specifically for harsh environment applications, and OEMs often define their own specifications for PCB assemblies.

The purpose of this project is to build on the suite of test procedures proposed in Phase 1 by designing a common test vehicle(s) and demonstrating that the test vehicle, in conjunction with the suite of agreed tests, successfully provides a first-pass verification that a particular material is worthy of consideration for full OEM qualification testing.

Project Focus

Phase 1 of the project focused on automotive OEMs' specifications and requirements. The project team undertook a cross comparison and proposed a simplified sequence of test methodologies that could provide a high probability of a materials suitability for applications in harsh automotive environments.

Phase 2 of the project plans to develop a common test vehicle(s) to accurately reflect typical DUT (device under test) modules, and to validate or develop pass/fail criteria. Additionally, Phase 2 will review standards and test methodology requirements for PCBA materials in other industry sectors that also require high reliability and durability in harsh environments, such as aerospace.

Phase 2 will include:

  • Design of test vehicle to encompass a range of chosen assembled components together with standardized test patterns to evaluate specific test criteria.
  • Undertake a range of tests on PCB materials to demonstrate that the suite of test procedures and test vehicle provide fundamental evaluation of a materials suitability and durability in harsh environments.
  • It is anticipated that this Phase 2 project will take 18 months..

Project Benefits and Value to Industry

  • Enable commonality in specifying PCB and PCBA materials throughout the supply chain.
  • Provide better assurance for meeting reliability requirements as material choices widen and the miniaturization of PCB designs continues.
  • Reduce costs and associated timescales in re-qualifying products for each OEM proprietary specification.
  • Enable OEMs to more easily compare material datasheets from differing suppliers.

Please note: iNEMI membership is required to participate in this project. Initial project sign up ended on October 22, 2018.  If you are interested in joining this project, please contact Steve Payne.  All new sign-ups must be approved by the project team.

Previous Phases

For Additional Information

Steve Payne