Indium Corporation continues to expand its flux portfolio with WS-823a proven, one-step ball grid array (BGA) ball-attach flux designed to eliminate the costly and warpage-inducing prefluxing step, especially on Cu-OSP substrate.
While the standard ball-attach process requires two steps, especially on a Cu-OSP substrate, WS-823 is a halogen-free, water-wash flux designed for a single-step ball-attach process that eliminates the prefluxing step in order to create reliable ball-to-pad joints.
WS-823 provides:
- Tackiness suitable for holding solder spheres in place during reflow
- Excellent solderability on a wide range of surfaces, including AuNi and oxidized Cu-OSP
- Uniform pin transfer over extended periods, eliminating changes in joint quality over time and uneven deposit sizes, which can lead to “missing ball”
- A formula engineered for low-voiding, thereby increasing joint strength
- Good cleanability with room temperature DI water, avoiding the formation of white residue
For more information on WS-823, and other materials in Indium Corporation’s ball-attach flux porfolio, visit www.indium.com/ball-attach.
À propos d'Indium Corporation
Indium Corporation est un raffineur, un fondeur, un fabricant et un fournisseur de matériaux de premier plan sur les marchés mondiaux de l'électronique, des semi-conducteurs, des couches minces et de la gestion thermique. Ses produits comprennent des soudures et des flux, des brasures, des matériaux d'interface thermique, des cibles de pulvérisation, des métaux et des composés inorganiques à base d'indium, de gallium, de germanium et d'étain, ainsi que des feuilles NanoFoil. Fondée en 1934, l'entreprise dispose d'une assistance technique mondiale et d'usines situées en Chine, en Allemagne, en Inde, en Malaisie, à Singapour, en Corée du Sud, au Royaume-Uni et aux États-Unis.
For more information about Indium Corporation, visit www.indium.com or contact Jingya Huang. You can also follow our experts, From One Engineer To Another (#FOETA), at www.linkedin.com/company/indium-corporation/ or @IndiumCorp.
