Indium Corporation offers flux cored solder wire used in hand soldering and automated processes during photovoltaic module assembly operations. CW-807 is a standard no-clean flux with clear residues and is available with Sn/Pb, Sn/Pb/Ag and SAC305. Manufactured at Indium's Chicago facility, which employs the most modern equipment and experienced work force, our flux-cored wire is void-free, made with tight dimensional tolerances, operator friendly and widely adopted by PV module manufacturers worldwide.
Solder Wire from the Indium Corporation is made to demanding quality standards. Our flexible manufacturing process allows us to fulfill orders from evaluation/research quantities to full scale production volumes. We offer over 100 alloys in various diameters.
Indium Corporation solder preforms are used extensively in CPV applications to mount III-V silicon dies, bypass diodes and to provide a metallic thermal interface when mounting CPV receiver substrates to a heatsink. Our solder preforms are in the field today in thousands of CPV modules around the world and standup to IEC standards including CPV thermal cycling demands.
Preforms come in custom and standard shapes such as squares, rectangles, washers and discs. Dimensions can be held to tight tolerances to assure volume accuracy.
A wide assortment of alloys is available in liquidus temperatures that range from 47°C to 1063°C. Alloys can be indium-contained, gold-contained, lead-free, fusible or standard tin-lead, as well as many others.
Learn more about Indium Corporation solder preforms here.
Solder 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.
Phil Zarrow: Jim, why would I use solder preforms?
Jim Hisert: Preforms are a great form of solder. Compared to paste or wire, you’re getting a very discreet volume of solder and that volume of solder can be coated in a flux – a very light coating of flux so you can limit your voiding.
Phil Zarrow: Jim, if an engineer is interested in looking into preforms, what are some of the criteria you need to know?
Phil Zarrow: Derrick, solder preforms. What are they? Derrick Herron: Well, a solder preform is a defined shape and size of a solder alloy. It can be used in place or in conjunction with a solder paste. Solder pastes are probably more common in the industry, but solder...
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