Products Solder Pastes Semiconductor Solder Pastes

Semiconductor Solder Pastes

Indium Corporation is a trusted partner to our customers focused on semiconductor packaging. Our diverse portfolio of solder pastes caters to a variety of semiconductor package types, targeted for a wide range of applications and markets. Indium Corporation’s semiconductor solder pastes meet the diverse needs in semiconductor packaging assembly, including precision fine-feature printing, dispensing and jetting for SiP and MEMS packaging, as well as high melting temperature solders for die-attach and clip-attach in power semiconductor packaging.

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  • Complete Portfolio
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A gloved hand scoops gray, Pb-free SAC paste from a green container with a spatula in a laboratory setting.

As a trusted name in manufacturing, our products are designed to meet your semiconductor packaging requirements. Take advantage of our extensive range of flux chemistries and alloys for optimal performance all while being supported by our experienced technical team.

Partner Qualified

Mycronic has qualified the Picoshot® series for jetting applications. This series includes Type 5 and Type 6 options, both no-clean and water-wash, with further development and qualification in progress.

High-temperature Pb-free

Introducing the Durafuse® HT, a drop-in Pb-free solution for replacing Pb-containing solders in high-temperature applications.

20 Years

Our SMQ75 high-temperature, high-Pb paste, with over 20 years of industry history, continues to be the standard standard for die-attach in lead frame applications.

5 Billion

To date, more than 5 billion front-end SiP modules have been manufactured using Indium Corporation’s semiconductor materials, and we anticipate continued growth.

Die-Attach Paste

Solder PasteFlux TypeHalogen-FreeApplicationComments
NC-SMQ75
with high-Pb solder alloys
(OR) Organic acid based
Ultra-low residue – ULR
YesPrinting or DispensingIndustry leading die-attach paste for high-Pb. Post reflow residue <1% of paste weight
Indium9.72HF
with high-Pb and HTLF solder alloys
(RO) Rosin basedYesPrinting or DispensingLow voiding with wide reflow process window
NC-SMQ51SC
with high-Pb, Pb-free and AuSn solder alloys
(RO) Rosin basedYesPrinting or DispensingSuperior wetting, low voiding. Suitable for a wide range of alloys
Durafuse® HT
High Temperature Pb-free (HTLF) solder
VariousYes*Printing or DispensingPb-free alternative to high-Pb solder for power discrete die-attach
FAST Paste (Fluxless)
with high-Pb and Pb-free solder alloys
(OR) Flux-less, solvent based binderYesPrinting or DispensingFlux-less solder paste designed for reflow under formic acid (HCOOH)

Jetting and Microdispensing Paste

Solder PasteFlux TypeHalogen-FreeApplicationComments
PicoShot® WS-5MWater-washYesJettingFor dot jetting of 300 µm diameter and above, and fine-line dispensing for metal lid-attach
PicoShot® NC-5MSolvent- or aqueous-based chemistry or no-cleanYesJettingFor dot jetting of 230-280 µm diameter, and fine-line dispensing for metal lid-attach
Indium12.8HFSolvent- or aqueous-based chemistry or no-cleanYesJetting and MicrodispensingFor dot jetting down to 80 µm diameter and above, and fine-line dispensing for metal lid-attach
Indium6.6HF-HDWater-washYesJetting and MicrodispensingWater-washable jetting and fine-line dispensing paste

SiPaste® Solder Paste

SiPaste®Flux TypeHalogen-FreeApplicationComments
SiPaste® 3.2HFWater-washYesType 6 and Type 7 solder paste suitable for ultrafine-pitch printingBest all-around pure water-soluble paste
SiPaste® C201HFDI water + saponifier or semi-aqueous chemistryYesType 6 and Type 7 solder paste suitable for ultrafine-pitch printingGood wetting power and HiP mitigation
SiPaste® C312HFDI water + saponifier, semi-aqueous chemistry, or no-cleanYesType 6, Type 7, and Type 8 solder paste suitable for ultrafine-pitch printingBest-in-class transfer efficiency and stencil life; best all-around fine-feature paste
SiPaste® SMQ77No-cleanYesType 6 solder paste suitable for ultrafine-pitch printingNo-clean, ultra-low residue process that is compatible with post-reflow underfill

Semiconductor Solder Pastes

Related Applications

High Temperature Soldering

High-Temperature Soldering

Offering high-temperature soldering materials for critical applications…

Close-up of a colorful patterned microchip surface with a grid-like structure and a reflective sheen.

Semiconductor Packaging and Assembly

Critical semiconductor packaging ensures functionality and durability.

Related Markets

Do you have technical questions or sales inquiries? Our dedicated team is here to help. “From One Engineer to Another®” isn’t just our motto—it’s our commitment to delivering exceptional service. We’re ready when you are. Let’s connect!

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