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…

How should I handle wet PCBs?

1 year ago

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

Is PCB poisonous?

1 year ago

We are a green energy brand which sells solar water heater. All of our products are almost use PCB. And…

SMD Soldering: A Step-By-Step Guide

1 year ago

SMD soldering refers to the process of soldering surface mount electronic components to printed circuit boards. As electronic devices and…

Does a simple wire antenna need a 50 ohm transmission line?

1 year ago

Designing wiring for automotive which will be equipped with antenna. Is it proper to use 50 ohm transmission line in…

On which layers of four should the trace antenna be (433mhz)

1 year ago

Our team plan to launch a GPS device for food safety tracking, with a four layers PCB inside. Where should…

Is it true that PCB antennas can be tuned by only changing their length?

1 year ago

My PCB antennas fail to achieve resonance, though I have changed their length. Our new product project is obstructed due…

At what frequency do PCB traces start to act as antennas?

1 year ago

Just interested in PCB design. I am wondering whether PCB traces start to act as antennas at some frequency. Anybody…

What should be the size of an NFC antenna given an operating distance?

1 year ago

I am dealing with a project about a PCB with NFC antenna. We are designing PCB now. Do anyone know…