Standard of Excellence: The Human Touch in an Automated World
The Government Circuit: Navigating New Trade Headwinds and New Partnerships
Global Sourcing Spotlight: How to Evaluate Supplier Capabilities Worldwide
Indium Corporation Expert to Present at iNEMI Seminar Hosted by Zestron Europe
January 25, 2024 | Indium CorporationEstimated reading time: 1 minute
Indium Corporation Regional Technical Manager and Technologist – Advanced Applications Andreas Karch will present at iNEMI’s upcoming seminar, Humidity Robustness and Isolation Coordination for e-Mobility. The seminar, hosted by ZESTRON Europe, will be held on February 1 in Ingolstadt, Germany.
Andreas’ presentation, No-Clean Flux Residues in Automotive Applications Must Meet Higher Requirements, will examine the influence of no-clean flux chemistries on the reliability of automotive PCB applications. In particular, the study focuses on failure caused by dendritic growth for high-power, low-standoff components for enhanced SIR conditions.
Due to increased automotive electrification (48V, HEV, EV) and the subsequent utilization of high-power components such as DPAKs and Power-QFNs in under-the-hood electronics, the SIR (Surface Insulation Resistance) specifications for evaluating the electrical reliability of no-clean solder paste flux chemistry have also become more stringent. For example, test voltage has increased from 5V to 10–50V, test time has increased from 168 to 500–1,000 hours, pitch has decreased from 0.5mm to 0.2–0.3mm, and minimum SIR threshold has increased from 100MΩ to 500MΩ.
No-clean solder pastes are normally used in automotive PCB assembly to solder low-standoff components such as DPAKs and power-QFNs (gap between the PCB pad and the component underbody is typically under 75µ).
“During reflow, volatiles in the flux chemistry, such as activators and solvents boil off; however, a lower standoff reduces the opportunity for the flux volatiles to vent, resulting in ‘wet’ flux residue post-reflow,” said Andreas. “It is, therefore, critical that the no-clean flux residue does not cause ionic dendritic growth and corrosion under low-standoff power components, throughout the working life of the product.”
Andreas serves as Technologist – Advanced Applications and Technical Manager for Germany, Austria, and Switzerland for Indium Corporation. He has more than 20 years of experience in automotive electronics and power electronics, including the development of advanced customized solutions. In 2014, the Austrian Patent Office awarded him the “Inventum” award for his patent for innovate LED automotive lighting as one of the top ten applicants. He is an ECQA-certified development engineer and has earned the Six Sigma Yellow Belt.
Share on:
Testimonial
"The I-Connect007 team is outstanding—kind, responsive, and a true marketing partner. Their design team created fresh, eye-catching ads, and their editorial support polished our content to let our brand shine. Thank you all! "
Sweeney Ng - CEE PCBSuggested Items
AQUANOX A4618 and CYBERSOLV C8882 to Lead KYZEN Offerings at SMTA Long Island Expo and Tech Forum
08/27/2025 | KYZEN'KYZEN, the global leader in innovative environmentally responsible cleaning chemistries, will exhibit at the SMTA Long Island Expo & Tech Forum on Wednesday, Sept. 10, 2025 at the Marriott Melville Long Island.
Gartner Predicts a $158B Shakeup—ScaleFlux Says the SSD Revolution Has Begun
08/11/2025 | BUSINESS WIREOff-the-shelf SSDs no longer meet the needs of the largest SSD users. Gartner predicts that by 2026, over 30% of on-premises storage will rely on captive NVMe SSDs—up from less than 5% in 2023.
KYZEN to Highlight Stencil Cleaner and Award-Winning Aqueous Chemistry at SMTA Chihuahua
08/11/2025 | KYZEN'KYZEN, the global leader in innovative environmentally responsible cleaning chemistries, is excited to return to the SMTA Chihuahua Expo & Tech Forum, taking place Thursday, Aug. 21, 2025, at the Hotel Sheraton Soberano Chihuahua.
Magnalytix’s Dr. Mike Bixenman to Guide PDC at SMTA High-Reliability Cleaning and Conformal Coating Conference
07/31/2025 | MAGNALYTIXMagnalytix, providing real-time reliability solutions for electronics manufacturing, is excited to announce that Dr. Mike Bixenman will present the professional development course “The Effects of Flux Residues and Process Contamination on the Reliability of the Electronic Assembly” on Wednesday, Aug. 13 at 9:00 AM CST to open the second day of the STMA High-Reliability Cleaning and Conformal Coating Conference.
Indium Corporation Introduces New Flip-Chip Flux for Semiconductor Devices
07/31/2025 | Indium CorporationIndium Corporation, a leading materials refiner, smelter, manufacturer, and supplier, today announced the global availability of WS-910 Flip-Chip Flux, a new water-soluble flip-chip dipping flux designed to meet the demands of cutting-edge semiconductor devices.