Flux and Epoxy
Indium Corporation is a developer, manufacturer, and global supplier of: specialty solders (including solder paste, preforms, spheres, columns, wire, tubing, ribbon, and foil), fluxes, electrically-conductive adhesives, inorganic compounds (including indium oxide, indium-tin oxide, indium hydroxide, and indium chloride), fusible alloys, indium-containing fabrications of all types, and pure indium (from commercial-grade through high-purity).
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Top Flux and Epoxy Technical Documents
Flux and Epoxy Technical Documents
Product Data Sheets
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Flux Blog Posts
Phil Zarrow: So, Seth, what’s coated preforms? What are the benefits of using them?
Seth Homer: Flux-coated preforms allow you to reduce the amount of flux that’s presented to the joint and increase the solder volume. Traditionally, with solder paste, you’re 50 percent flux. That excess flux has to go somewhere and it usually resides on the board and it has to be cleaned. But it also contributes to voiding under bottom termination components. So, it’s a reliability thing.
Phil Zarrow: What applications benefit most from flux-coated preforms?
Seth Homer: Applications that benefit the most from the use of flux-coated preforms is usually like bottom termination components, where voiding is a concern and reliability is important over the long term. In addition to that, any component that’s going to see stress, like a USB connector, or something like that, the added solder volume will help.
The Indium Corporation has many summer interns this year. The technical support group was fortunate enough to hire Sarah Bjornland (pictured). She is a very bright student from the a...
Lamp style preheaters have the fastest response time of any of the previous preheaters mentioned in other posts. The lamp filament is practically the sole thermal mass; it is so fast that the response time is measured in seconds rather than minutes, as with the other models. This type of...
Andy C. Mackie, PhD, MSc
Senior Product Manager,
Semiconductor Assembly Materials
From One Engineer to Another®
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