How can I fix the PCB to the mechanical structure?

12 months 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?

12 months 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?

12 months 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?

12 months 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?

12 months 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?

12 months ago

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

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

12 months ago

I've ordered fabrication and assembly of small PCB batches (100pcs) 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?

12 months 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?

12 months ago

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

How should I handle wet PCBs?

12 months ago

A batch of PCB got wet in warehouse due to roof linking. Too terrible to shoulder the lost. How can…