Getting Your PCB Curing Right with Gallium Iodide Lamps
If you’re running a PCB shop, you know the headache of photoresist curing. Get it wrong, and your traces look like a mess. That’s where gallium iodide lamps come in. Unlike those basic mercury lamps you see everywhere, these are tweaked. We add gallium to shift the light to the exact UV wavelength your dry films and liquid resins actually want.
The Technical Stuff (Made Simple)
We don’t believe in “one size fits all.” We build these lamps to hit the specific peak your resist needs. Because the UV band is narrower, you don’t get that annoying “over-cure” bleeding over the edges of your traces. Everything stays crisp. When you’re ordering, just let us know your required irradiance and how fast your conveyor belt is moving. We’ll handle the math.
Heat, Glass, and Hardware
Here is the thing: high-intensity UV getshot. Really hot. To stop the glass from cracking under that kind of stress, we use high-purity quartz. It’s tough. But you still have to do your part. If these are sitting in a closed chamber, make sure your cooling fans are actually doing their job. If the airflow is weak, you’re looking at a burnt-out lamp or, even worse, warped PCBs. As for the fit? We’ve got you covered. Whether you need a specific pin layout or a weird length to match your machine’s reflectors, we can tweak the footprint so it just drops right in. No hacking your equipment to make it work.
Want to Sell Your Own Brand?
If you’re buying wholesale and want to put your own name on the box, we can do that. And I don’t mean just slapping a sticker on the packaging. We let you pick the voltage, wattage, and length. You basically design a proprietary line for your own market. You tell us the specs, and we take care of the messy parts—the vacuum sealing and the gas filling. It’s a great way to give your customers a custom solution without having to build your own clean-room from scratch. Just a heads-up: if you ask us to change the gas mix to shift the wavelength, it’ll probably shorten the lamp’s lifespan a bit. It’s just the physics of the thing.