![]() The part may be damaged by moisture in the component (and surrounding) if processed without this pre-bake. J-STD-033 Bake: BGAs usually have an MSL rating. Posted in hardware Tagged bga, rework station, solder Post navigation Right now, removing a BGA chip works great, but is still working on the tech necessary to replace a BGA chip on a board. The temperature is controlled via USB by a computer, allowing to set a temperature profile as recommended by the BGA chip’s data sheet. ’s reflow station is made of an electric skillet for the bottom of the board, an infrared lamp for the top side of the board, and control circuitry constructed from an ATMega128, temperature sensors, and a huge power supply. Towel trick notwithstanding, the easiest way to fix this error is to heat up the card to above the melting point of solder, removing the chip, and resoldering it with careful application of solder paste. A common error on his Amilo XI2428 graphics card is having the small balls on the underside of the chip corrode, leaving the user with a non-functional graphics card. ’s build began when he wanted to repair a graphics card. ![]() This isn’t an easy process, so came up with his own BGA rework station that costs much less than commercial offerings. Sometimes these balls corrode or otherwise need to be reflowed. Instead of convenient pins, BGA parts have tiny metallic balls on which solder is applied, a board is thrown through a reflow oven, and hopefully at the end, everything works. SMD components may be a little challenging for the home builder – even though the’re inordinately practical for homebrew PCBs – but if you play around with electronics and solder long enough, you’re eventually going to run into the horrors of BGA parts.
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