Precise active soldering – even for the toughest materials

Advanced bonding with active solder: precision meets material diversity

Why active solder is a game-changer for non-metallic materials

Unlike conventional solder alloys, active solder is specially formulated to bond materials that are traditionally considered “unsolderable.” These include ceramics, glass, and diamonds – all of which lack the metallic structure needed for conventional wetting. By incorporating reactive elements like titanium or zirconium, active solders chemically interact with the substrate’s surface, allowing seamless bonding without the need for coatings or adhesives.

Eliminating surface preparation for high-tech applications

In industries like sensor technology and medical devices, minimizing process steps is critical. Active solders allow you to bypass complex pre-treatment procedures such as metallization or plating. This leads to shorter production cycles, higher cost-efficiency, and reduced process complexity – without sacrificing joint reliability.

Reliable joining under extreme vacuum conditions

Because the active elements in these alloys are highly reactive with oxygen, soldering must occur in a high-vacuum or inert environment. This ensures that the bond forms cleanly, without flux residues or oxidation artifacts. Especially in cleanroom environments or semiconductor fabrication, flux-free soldering is not just preferred – it’s essential.

LOT-TEK provides active solder solutions tailored to your exact material combination and process parameters. From joining alumina ceramics to delicate diamond substrates – we deliver technical reliability and precision across industries.