Sustainable electronics manufacturing

Thu, 30 Jul 2026 00:23:32 +0800

IR vs. Hot Air: Getting BGA Solder Right

If you’ve ever worked with Ball Grid Array (BGA) components, you know the struggle. You need to melt those tiny solder spheres hiding underneath the chip, but you have to do it without frying the board or killing the chip itself. A lot of people reach for hot air convection, but it’s a bit of a gamble. Air just isn’t great at moving heat. It tends to swirl around the component, leaving a “shadow” underneath. You end up with a chip that’s baking on top while the solder joints below are still stone cold. Not ideal. The trick with Infrared (IR) IR heating does things differently. Instead of trying to warm up the air to warm up the part, you’re sending electromagnetic waves straight into the material. Think of it as heating from the inside out. The energy penetrates the packaging and gets the molecules inside the BGA substrate moving. Because the heat is volumetric, it hits those solder balls directly through the board and the chip body. Everything warms up more evenly. That means you don’t have to worry about “popcorning”—that nasty effect where things expand unevenly and crack. Why it beats the blower With forced convection, you’re fighting the air. To get enough heat into the center of a dense BGA, you usually have to crank the temperature and the blower speed to the max. And we’ve all been there—one wrong move and you’ve accidentally blown a tiny surface-mount component right off the board. IR is just… cleaner. It’s targeted. You can tune the wavelength to hit the solder paste and the PCB exactly where they need it. It happens at the speed of light. It’s fast, and it’s precise. The catch Now, IR isn’t a magic wand. It all comes down to “emissivity”—basically, how well your materials absorb that energy. If you’re dealing with heavy copper planes mixed with thin FR4, the copper is going to soak up that heat like a sponge. If you just blast the wattage to make up for it, you’ll likely scorch the edges of your board before the center even gets warm. You’ve got to be careful with your ramp-up profile. Take your time. Get the timing right. That’s where the real skill comes in.

Sustainable electronics manufacturing

Tue, 21 Jul 2026 00:27:03 +0800

Putting Automotive Electronics Through the Wringer

Things are getting brutal under the hood of modern cars. If you’re testing electronics these days, you know that standard heat tests just don’t cut it anymore. That’s why we use custom short-wave infrared (IR) lamps. Think of it as a surgical strike of heat. Instead of tossing your whole setup into a convection oven and waiting for the air to warm up, IR lamps blast radiant energy directly onto the PCB or housing. You get to stress the specific part that actually matters without turning the entire test chamber into a sauna.

Manufacturing on Infrared Lamp Data

Sustainable electronics manufacturing

IR vs. Hot Air: Getting BGA Solder Right

Sustainable electronics manufacturing

Putting Automotive Electronics Through the Wringer