What I would like to know is if ICs also have a limited shelf life and if so, do some…
The assembly note states: Bake bare PCBs in a clean and well ventilated oven prior to assembly at 125*C for…
I know that using leaded process for lead-free BGA chips is not acceptable, because the solder balls of the BGA…
There are several round pads on the PCB prototypes made by the manufacturer. They are marked Scx and labelled with…
I have a professional question about BGA package. Why is BGA (Ball Grid Array) socket not considered as an actual…
I see recommendations of 2-4 mils for solder mask expansion. But why is it necessary?
I received the PCB design file from supplier. There are some teardrops, which I have seldom seen. Why are there…
Last week, I visit a PCBA manufacturer for our new project. They not only introduce in-circuit tester but also flying…
I have a technical question about thermal management with mid-power LED diodes.Do you use thermal vias on the PC board…
I have a THERMAL problem when designing a power LED ALUMINUM PCB. I have 10 5W UV power LEDs.Coldwater flows…