LOCTITE® ECCOBOND UF 3812

Características e Benefícios

This 1-part, reworkable epoxy underfill encapsulant is designed for Ball Grid Array (BGA), Chip Scale Packaging (CSP) and Wafer Level Chip Scale Packages (WLCSPs) production. It is compatible with most lead-free solders.
LOCTITE® ECCOBOND UF 3812 is a halogen-free underfill that shows stable performance under thermal stress. This black-liquid, epoxy-based underfill showcases excellent thermal cycle performance and sturdy electrical performance under thermal and humid bias. It can be used with most Pb-free solders; is designed for the production of BGA, CSP and WLCSPs; and is formulated to flow at room temperature with no additional preheating required.
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Informação Técnica

Aplicações Deficiência de material, Encapsulamento
Coeficiente de expansão térmica (CTE), Above Tg 175.0 ppm/°C
Coeficiente de expansão térmica (CTE), Below Tg 48.0 ppm/°C
Cor Preto
Cronograma de cura, @ 130.0 °C 10.0 min.
Modulo de armazenamento, DMA @ 25.0 °C 3-point bending 3004.0 N/mm² (435580.0 psi )
Temperatura de armazenamento -20.0 °C
Temperatura de transição do vidro (Tg) 131.0 °C
Tempo de trabalho 1.0 dia
Tipo de cura Cura por Calor
Vida útil 3.0 dia
Viscosidade, Physica @ 25.0 °C Spindle CP50-1, Shear Rate 1,000 s⁻¹ 350.0 mPa.s (cP)