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INEMI Call-for-Participation Webinar: BiSn-Based Low-Temperature Soldering Process and Reliability Project Phase 3b
April 28, 2025 | iNEMIEstimated reading time: 1 minute
In 2015, INEMI initiated the BiSn-Based Low-Temperature Soldering Process and Reliability Project to assess the feasibility of using low-temperature solders (LTS) in the SnBi system to address various technological, economic and ecological drivers for assembly of consumer computer electronic board products. The overall project objective was to assess the surface mount processability and reliability of the solder joints formed when enhanced BiSn-based solder pastes are used for assembling electronic components on printed circuit boards. To date, the project has:
Phase 1 — developed assembly processes on selected low-temperature solder pastes
Phase 2 — conducted mechanical shock reliability evaluation
Phase 3a — assessed the temperature cycling fatigue reliability of BGA solder joints of two different sizes with homogeneous and heterogeneous microstructures, under three distinct temperature cycling protocols
Phase 3b Now Forming — Sign Up by May 31
Phase 3b is being organized to:
Assess the temperature cycling fatigue reliability of near eutectic SnBi solder joints with the upper dwell temperature being > 0.95 homologous temperature for the SnBi alloy and compare this with Phase 3a results of three other temperature cycling protocols with upper dwell temperatures <0.95 homologous temperature.
Assess the temperature cycling fatigue reliability of LTS reverse hybrid solder joint for the standard 0-100ºC protocol and compare it with full SAC305 and full LTS SnBi solder joints.
Call-for-Participation Webinar
If you didn't have a chance to join us for the Session 1 call-for-participation webinar, you can still log in on April 28/29 for Session 2. This webinar will provide an overview of project accomplishments to date and introduce the plan for Phase 3b. The Phase 3b project is open for sign-up until May 31, 2025.
This webinar is open to industry; advance registration is required.
Please note: You will need to log into your web account (free to members and non-members) to register. If you do not have a current web account, please create one and set up your profile.
Session 2
Tuesday, April 29, 2025
9:00-10:00 a.m. CST (China)
9:00-10:00 p.m. EDT (Americas) on Monday, April 28
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