Henkel Launches Non-Proprietary Solder Paste Analysis Toolkit


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Henkel has developed a non-proprietary solder paste analysis toolkit that is easy to implement and targeted at today’s manufacturing complexities, particularly in the printing and reflow process areas.

“As assembly dimensions have dramatically decreased in the last 10 years, the influence of solder paste formulation effectiveness has increased,” explains Doug Dixon, Global Marketing Director at Henkel. “As such, evaluating the many material properties—from print characteristics and stencil behavior to reflow performance and reliability—has become more challenging. The objective of this work was to develop a robust solder paste evaluation tool that integrates current and future market requirements, while providing a simple, off-the-shelf solution for PCB assemblers.”

A cooperative effort between industry specialists in the disciplines of material formulation, statistical evaluation and process engineering, the new solder test vehicle offers a turnkey solder evaluation tool, incorporating PCB design, a complete bill of materials (BOM), full programming documentation, set-up and test methods, and step-by-step directions for a designed experiment.

Considering current and future market requirements, the solder evaluation tool integrates area arrays down to 0.3mm pitch, 0.4mm pitch bottom terminated components (BTCs), and a variety of discretes from 1206s down to 008004s. The unpopulated side of the board offers a design to evaluate slump, spread, solder balling, SIR and print to fail (PTF). Balancing the 22 material properties to be tested along with BOM and labor costs, the PCB and test methods were engineered for efficiency, providing maximum data while minimizing the time investment. A user-defined scorecard that prioritizes various solder paste characteristics and weightings summarizes rating information to indicate the best solder paste for a specific operation.

“There is often hesitance to change solder paste formulations for a variety of reasons,” says Dixon, noting that challenging and time-consuming qualification procedures frequently deter transitioning to a more capable material. “Access to a simple method for determining the best solder material for a particular process enables fast implementation for better yield and reliability outcomes. For assemblers who need or want to update solder formulations on a regular basis, this new test vehicle offers an efficient and effective approach for material qualification.”

The Henkel-developed solder evaluation kit will be available through select, third-party suppliers. 

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