Henkel develops reworkable underfill

In today’s electronic devices such as smartphones there are numerous complex engineering components. Expanding on its portfolio of advanced underfill materials, Henkel has developed Loctite UF3810, a new underfill technology that provides extremely high reliability while also enabling easier reworkability as compared to previous generation products. Ideally suited for today’s handheld communication and entertainment applications, Loctite UF3810 delivers excellent drop and shock protection.

Designed to deliver superior performance and ease-of-use, Loctite UF3810 addresses many of the complex requirements associated with today’s high value devices, but does so in a formulation that has excellent processability. The material is halogen-free, completely reworkable and has a high glass transition (Tg) temperature of 100°C, thereby delivering robust thermal cycling reliability for next-generation wafer-level CSP (WLCSP) and PoP devices. “Assembly specialists want to reliably protect these devices but also have the option to rework them should any issues arise”, explains Dr. Brian Toleno, Henkel’s Global Product Manager for Liquids. “Loctite UF3810 provides high reliability and reworkability – a balance not readily available with traditional, low Tg formulas”, says Toleno.