Indium Corporation will feature its new Flip-Chip Flux WS-446HF and Ball Attach Flux WS-823 at Productronica China, March 20-22, in Shanghai, China.
Indium Corporation’s 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 provides:
- Excellent solderability to reduce open joints
- Tackiness suitable for holding large die in place during assembly and reducing die tilt
- Chemistry that eliminates dendrite issues
- Reduced voiding
- Good cleanability
WS-823 is a water-soluble, halogen-free, ball-attach flux designed for use in pin transfer and printing applications for ball attachment to both substrates (BGA manufacturing) and wafers for WLP (wafer-level packaging). WS-823 offers:
- Excellent solderability on some of the most demanding substrate metallizations, such as copper OSP
- Lower process costs and warpage due to the elimination of “pre-fluxing”
- Consistent flux deposition
- Good tack during heating combined with fast soldering eliminates missing ball
- Low-cost simplified cleaning
Both WS-446HF and WS-823 are cleanable with just DI water only.
For more information on Indium Corporation’s fluxes, visit indiumstg.wpenginepowered.com/flux-and-epoxy/ or visit Indium Corporation’s booth #E2.2514.
Indium Corporation es uno de los principales fabricantes y proveedores de materiales para los mercados mundiales de la electrónica, los semiconductores, las películas finas y la gestión térmica. Sus productos incluyen soldaduras y fundentes, soldaduras fuertes, materiales de interfaz térmica, cátodos para sputtering, metales y compuestos inorgánicos de indio, galio, germanio y estaño, y NanoFoil®. Fundada en 1934, la empresa cuenta con asistencia técnica mundial y fábricas en China, Malasia, Singapur, Corea del Sur, Reino Unido y Estados Unidos.
For more information about Indium Corporation, visit indiumstg.wpenginepowered.com or email [email protected]. You can also follow our experts, From One Engineer To Another® (#FOETA), at www.facebook.com/indium or @IndiumCorp.

