Visiting a partner factory in South Korea

A group of AMS customers recently toured a partner's materials production line in South Korea. The trip gave factory engineers a better understanding of the manufacturer's production process, quality control and new product development direction.

The delegation included process engineers, quality engineers and technical purchasing staff from electronics and component factories in northern Vietnam. These are the people who evaluate and use the materials every day, so the visit focused on practical aspects.

Adhesive coating and lamination lines

The delegation was shown the process of coating acrylic adhesive onto a backing film, drying it and laminating the release liner. A highlight was the in-line adhesive thickness measurement system, which allows immediate adjustment when deviation exceeds a threshold of a few micrometers. The cleanroom for optical tapes was also opened for the group to observe through the glass.

Quality control laboratory

In the laboratory, the partner's engineers presented the tests applied to each lot: peel adhesion, static shear, damp heat resistance and solvent resistance. The customers had the chance to compare these with the test methods used at their own factories and agree on measurement methods so that both sides' results match.

Seeing firsthand how a lot of tape is tested, we understood why the specifications are so consistent from lot to lot. — A member of the delegation

Key takeaways

• A clear understanding of why adhesion differs between the lab and real-world use.
• Insight into the new product roadmap for wearables and foldable displays.
• A direct technical communication channel established through AMS.

The tour is part of a customer-manufacturer engagement program that AMS maintains to strengthen long-term technical collaboration.

In-depth technical discussions

In addition to the tour, the delegation held a dedicated working session with the partner's product development team. The Vietnamese engineers raised specific problems they face, such as tape slipping when applied in high humidity during the damp season, or adhesive oozing at the edges during high-speed die-cutting. The partner explained the causes from an adhesive formulation perspective and recommended product codes better suited to tropical climates. Several new samples were shipped to Vietnam right after the trip for customers to evaluate on their actual production lines.

AMS will compile the evaluation results of these samples and share them with the delegation members for reference.

If you are interested in upcoming tours and training programs, please contact AMS Vietnam.