YINCAE launches UF 120LA epoxy underfill for advanced chip packaging

YINCAE launches UF 120LA epoxy underfill for advanced chip packaging

YINCAE has released UF 120LA, a high-purity liquid epoxy underfill designed for the requirements of advanced electronics packaging. The material is engineered to flow into gaps as small as 20μ, providing a seamless barrier that protects chips from environmental hazards, mechanical stress, and thermal fluctuations.

According to the company, this capability eliminates the need for cleaning processes, which reduces environmental impact and lowers manufacturing costs.

The material is designed for use in several advanced packaging applications, including:

• BGA (Ball Grid Array)
• Flip chip
• WLCSP (Wafer-Level Chip Scale Packages)
• Multi-chip modules

Production efficiency is further aided by a snap cure process that occurs at lower temperatures. This makes the epoxy suitable for use in hybrid circuits, chip carriers, and memory cards. In terms of durability, UF 120LA can withstand 5x260°C reflow cycles without causing solder joint deformation, a metric that YINCAE claims outperforms competitors that require cleaning.

The adoption of such liquid epoxies is becoming critical as chips grow more powerful and compact. These materials function by flowing into intricate structures and crevices before curing into a solid, resilient coating. Beyond physical protection, advanced epoxies provide thermal management by dissipating heat generated during operation, which prevents device overheating.

YINCAE suggests that the thermal resistance and mechanical durability of UF 120LA will support the development of high-performance, compact devices. This aligns with broader industry trends toward edge computing, IoT connectivity, and miniaturization.

The company identifies several mission-critical sectors that could benefit from the reliability and longevity of the product, including aerospace systems, autonomous vehicles, wearable technology, and 5G and 6G infrastructure. For the consumer electronics market, the streamlined manufacturing workflow may lead to faster time-to-market and new economies of scale by reshaping supply chain efficiencies.

"The UF 120LA represents a significant leap forward in electronics packaging technology,"

YINCAE’s chief technology officer, via signalintegrityjournal.com

The chief technology officer added that the product empowers manufacturers to push boundaries in packaging applications and expressed belief that UF 120LA will set a new industry standard for efficiency and performance.

In the long term, YINCAE indicates that widespread use of this technology could revolutionize semiconductor packaging, leading to electronic devices that are more resilient in extreme environments, more efficient, and lighter.

UF 120LA is available for purchase immediately. YINCAE also offers the UF 120HA underfill as part of its product range.