Indium Corporation has received a Sustainability Award from ASE Technology Holding Co., Ltd. at the 2025 Best Suppliers Award Ceremony in Taichung, Taiwan. The award recognizes the use of Indium Corporation’s WS-575-C Ball-Attach Flux in the standard BGA ball-attach process. Through this application, ASE successfully lowered the cleaning water temperature from the typical 50–60°C range to room temperature, approximately 35°C, while maintaining the same cleaning quality standards.

The process changes improved energy efficiency by reducing electricity consumption and associated carbon emissions. According to Indium Corporation, the approach delivered estimated annual savings of 157,680 kWh in electricity use, a 1,643.4 metric ton reduction in carbon dioxide emissions, and approximately $440,000 in economic benefit.

“Manufacturers are facing increasing pressure to achieve greater reliability and performance without compromising their sustainability goals,” Sze Pei Lim, Senior Global Product Manager – Semiconductor and Advanced Materials, said. “We acknowledge our responsibility to support our customers by developing products that align with these objectives.

Industrial Sustainability Monthly image showing Indium WS-575-C Ball-Attach Flux for the standard BGA ball-attach process and sustainable electronics manufacturing.

Indium WS-575-C Ball-Attach Flux supports the standard BGA ball-attach process as a halogen-free, water-soluble flux designed to replace traditional two-step preflux/reflux processing with a single-step, cost-effective, and warpage-free ball-attach operation. (Photo courtesy of Indium Corporation)

“With innovative solutions like WS-575-C, whose residue can be easily cleaned with room-temperature water, we help reduce energy consumption, enhance efficiency, and minimize environmental impact, all while delivering the reliable performance our customers rely on.”

Indium Corporation’s WS-575-C Ball-Attach Flux is used in semiconductor and electronics assembly processes where cleaning performance, process reliability, and material compatibility are critical. The ability to clean flux residue with room-temperature water can help reduce the energy demands associated with heated cleaning processes, supporting more efficient manufacturing operations.

For semiconductor packaging and electronics assembly environments, incremental process improvements can have measurable sustainability impacts when applied across high-volume manufacturing operations. Reducing water heating requirements in BGA assembly can support lower energy use while maintaining the process performance needed for advanced electronic components.

The ASE Technology Sustainability Award reflects the growing importance of materials engineering in sustainable electronics manufacturing. As electronics, semiconductor, and advanced packaging supply chains continue to evaluate energy use and carbon emissions, material solutions that improve process efficiency without compromising reliability are becoming increasingly important.

Environmental responsibility is also part of Indium Corporation’s broader operating and product development strategy. The company continues to expand materials solutions that support global sustainability initiatives while serving electronics, semiconductor, thin-film, and thermal management applications.

About Indium Corporation

Indium Corporation is a materials refiner, smelter, manufacturer, and supplier serving the global electronics, semiconductor, thin-film, and thermal management markets. Founded in 1934 and headquartered in Clinton, New York, the company provides solders, fluxes, brazes, thermal interface materials, sputtering targets, specialty metals, inorganic compounds, and related materials for advanced manufacturing applications. Its products support industries including electronics assembly, semiconductor packaging, power electronics, automotive, communications, aerospace, and industrial manufacturing. Indium Corporation operates global technical support resources and manufacturing facilities in North America, Europe, and Asia.  For more information, please click here.

Source/Photo Credit: Indium Corporation


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Molly Bakewell Chamberlin
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