4 ms·
Good luck hand soldering the BGA memory which is the only package you're going to find DDR2/3 in.
by MisterTea 8y ago
Good luck hand soldering the BGA memory which is the only package you're going to find DDR2/3 in.
- snuxoll 8y agoDRAM packages don't look TOO terrible, you could probably do it by hand with a mask, solder paste, a heat gun and a fair amount of patience. Alignment is the big issue, but your standard DDR3 package is 96 balls with a high enough pitch that you could eyeball it.
- crankylinuxuser 8y agoThe problem is QA. If its non-ball, you can use a magnifying glass to verify. If its ball, you aren't verifying it. You need xray gear.
- Taniwha 8y agoI completely agree, I've done a bunch of 100BGAs - it's hard but not impossible, I use a steel mask, solder paste and a cheap reflow oven - alignment just requires a steady hand and good tweezers
- stefan_ 8y agoWait, the memory isn't in that huge package? Jeez. Yeah there is a reason they have BGA and other packages, and part of it is just the huge lead inductance of those old (T/L/...)QFP packages. Routing DDR3 is no fun no matter what but this is just making your life extra difficult for no good reason.