How can I determine BGA land pad diameter for given ball diameter?

1 year ago

I'm working on a project which requires the use of a CSP package. The product's datasheet provides ball pitch and

How can I fix the PCB to the mechanical structure?

1 year ago

I designed a PCB with an imaging sensor that is mechanically coupled to a lens assembly using four 2-56 screws.

Can we do wave solder the through hole parts without masking it?

1 year ago

We would like to do wave soldering for the through hole components. All through hole components are top side of

Why does my RF PCB have small holes in the ground polygon?

1 year ago

I ordered RF PCB design and prototype from my supplier . There are something like a hole, but it is

How can I separate PCB antenna and SMA connector?

1 year ago

I am designing a prototype PCB for a Lora node. It will have an SMA connector (J2) and a PCB

CEM3 or FR4 PCB, which is the lightest material?

1 year ago

There is nothing about weight in the substrate datasheets I found. Between CEM-3 or FR4, which is the lightest material

What Is a Solder Bridge on PCB? How to Prevent It?

1 year ago

Flawless PCB soldering is imperative for proper functioning of a printed circuit board. Echter, even experienced technicians can make small mistakes

What kinds of test is suitable for low volume PCB order?

1 year ago

I've ordered fabrication and assembly of small PCB batches (100st) a couple of times already. Each time the factory asked

Why do all the ground leads short outs beteween each other after Packing Virtex-4 via BGA?

1 year ago

After We have assembled the Virtex-4 FPGA BGA package on our custom design PCB, we check for short circuits between

What’s the meaning of “CR” marked on the PCB?

1 year ago

Receive the PCB prototype from supplier. And see a CR mark on the board. What does it mean? Is it