Why should we bake bare PCB?

2 years ago

The assembly note states: Bake bare PCBs in a clean and well ventilated oven prior to assembly at 125*C for…

Can leaded BGA chips be reflow soldered with lead-free process?

2 years ago

I know that using leaded process for lead-free BGA chips is not acceptable, because the solder balls of the BGA…

What are the round pads on the bottom of a PCB?

2 years ago

There are several round pads on the PCB prototypes made by the manufacturer. They are marked Scx and labelled with…

Why is BGA (Ball Grid Array) socket not considered as an actual CPU socket?

2 years ago

I have a professional question about BGA package. Why is BGA (Ball Grid Array) socket not considered as an actual…

PCB Lamination: An Introduction to Materials and Process

2 years ago

PCB lamination is a critical step in PCB fabrication, which involves “sandwiching” a core layer containing the circuitry between sheets of…

What is the recommendations of 2-4 mils for solder mask expansion. But why is it necessary?

2 years ago

I see recommendations of 2-4 mils for solder mask expansion. But why is it necessary?

Why are there teardrops on PCB pads?

2 years ago

I received the PCB design file from supplier. There are some teardrops, which I have seldom seen. Why are there…

Why does the manufacturer use a flying probe tester when they already have an in-circuit tester?

2 years ago

Last week, I visit a PCBA manufacturer for our new project. They not only introduce in-circuit tester but also flying…

Do modern LED lights use thermal vias?

2 years ago

I have a technical question about thermal management with mid-power LED diodes.Do you use thermal vias on the PC board…