TCB and Copper Pillar Flux
Cu-Pillar Flip-Chip Flux is a dipping flux designed for use in thermocompression bonding flip-chip copper pillar applications. Its rheology and chemical design enables its use with dipping depths down to 10 microns or less.
The amount of flux deposited on the substrate can be optimized by changing equipment parameters. Key variables include temperature, copper-pillar dimensions, shear speed, time of shearing before dipping, dwell time in flux, and depth of immersion. The flux rheology can be optimized for the desired application by shearing to achieve the desired viscosity.
Packaging is available in 10cc and 30cc syringes.
Related Markets and Applications
Top TCB and Copper Pillar Flux Documents
Compatibility of Polymers and Fluxes: Getting to the Heart of the Matter (Paper)
Product Data Sheet
Interconnections for SMT, BGA, and Flip Chip Technologies (Paper)
Lead-Free Soldering and Low Alpha Solders for Wafer Level Interconnects (Paper)
TCB and Copper PIllar Flux Technical Documents
Safety Data Sheets
Flux Blog Posts
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Ed knows how Indium’s products are made, and how to help you get the most out of them. Back in 1990, Ed began his journey with Indium Corporation. When I met him in 2005, he was managing our flux department, but he worked in many other departments up to that point. He made a bold move to the…
Interesting question from a Chinese die-attach customer this week asking about volume resistivity of solder. My friend, Eric Bastow, suggested that Indium make this available to all through a blog post. It is well understood by Power Semiconductor engineers that a key figure of merit for a low…
Andy C. Mackie, PhD, MSc
Global Product Manager of Semiconductor and Advanced Assembly Materials
From One Engineer to Another®
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