Indium Corporation has expanded its flux portfolio with a robust flux designed to provide a simple solution to complicated applications, especially those with a single cleaning step for both BGA ball-attach and flip-chip processes.
WS-446HF is a water-soluble, halogen-free, flip-chip dipping flux with an activator system powerful enough to promote good wetting on the most demanding surfaces—including solder-on-pad (SoP), Cu-OSP, ENIG, embedded trace substrates (ETS), and flip-chip on leadframe applications.
WS-446HF:
- Includes a chemistry that eliminates dendrite issues, especially critical for fine-pitch flip-chip applications
- Provides tackiness suitable for holding solder spheres and large die in place during assembly, eliminating missing balls and reducing die tilt and non-wet-opens due to warpage
- Delivers consistent pin transfer, printing, and dipping performance, ensuring consistent joint quality and improving production yields
- Eliminates the need for multiple fluxing steps, enabling a single-step ball-attach process and eliminating the warpage-inducing effects of prefluxing
- Has good cleanability with room temperature DI water, avoiding the formation of white residue
Indium Corporation 是全球電子、半導體、薄膜和熱管理市場的主要材料製造商和供應商。產品包括焊錫和助熔劑、銅钎、熱介面材料、濺鍍靶材、铟、鎵、錫金屬和無機化合物以及 NanoFoil®。公司成立於 1934 年，擁有全球性的技術支援，工廠位於中國、印度、馬來西亞、新加坡、南韓、英國和美國。
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