LOCTITE® ECCOBOND UF 3812

功能与优点

Reworkable epoxy underfill encapsulant for CSP, WLCSP, and BGA production. Compatible with most lead-free solders.
If you're looking for a halogen-free underfill that shows stable performance under thermal stress, consider LOCTITE® ECCOBOND UF 3812. This black-liquid, epoxy-based underfill showcases excellent thermal cycle performance and sturdy electrical performance under thermal and humid bias. Our ECCOBOND UF 3812 solution can be used with most Pb-free solders; is designed for the production of CSPs, WLCSPs, and BGAs; and is formulated to flow at room temperature with no additional preheating required.
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技术信息

使用寿命 3.0 天
储存温度 -20.0 °C
储能模量, DMA @ 25.0 °C 3-point bending 3004.0 N/mm² (435580.0 psi )
固化方式 热+紫外线
固化时间, @ 130.0 °C 10.0 分钟
应用 封装, 未充满
热膨胀系数 (CTE), Above Tg 175.0 ppm/°C
热膨胀系数 (CTE), Below Tg 48.0 ppm/°C
玻璃化温度 (Tg) 131.0 °C
粘度, Physica @ 25.0 °C Spindle CP50-1, Shear Rate 1,000 s⁻¹ 350.0 mPa.s (cP)
适用时间 1.0 天
颜色 黑色