Technical Writer
Oliver is an experienced electronics engineer with over 7 years of experience developing products in IoT, consumer electronics, and medical devices. He is highly skilled in analog circuit design, embedded systems, PCB layout, firmware coding, and prototyping electronic products. Oliver’s expertise encompasses the full product development cycle, from concept to mass production. He holds a Master’s degree in Electrical Engineering and leverages his deep technical knowledge to deliver innovative electronic solutions.
I am designing a prototype PCB for a Lora node. It will have an SMA connector (J2) and a PCB antenna. Switching RF connectors are not available in my area, so as an amateur enthusiast what is a good way to separate the antennas?
There is nothing about weight in the substrate datasheets I found.
Between CEM-3 or FR4, which is the lightest material ? What is the average weight by surface for CEM-3 boards ?
I’ve ordered fabrication and assembly of small PCB batches (100pcs) a couple of times already. Each time the factory asked me if I want to do test on the PCB. But I don’t what to do about it. And I test them by myself. Then, the result of the testing is unacceptable with 15% soldering problems. So bad. I think I will ask the supplier to test them before delivery.
After We have assembled the Virtex-4 FPGA BGA package on our custom design PCB, we check for short circuits between all power grounding and they shows short cut between each other. Please tell us about any process for debugging this issue.
Receive the PCB prototype from supplier. And see a CR mark on the board. What does it mean? Is it related to quality control?
A batch of PCB got wet in warehouse due to roof linking. Too terrible to shoulder the lost. How can I do to rescue these wet PCBs? Or to minimize the damage?
We are a green energy brand which sells solar water heater. All of our products are almost use PCB. And we want to know whether it is poisonous to human and environment?
Designing wiring for automotive which will be equipped with antenna. Is it proper to use 50 ohm transmission line in this case?
Our team plan to launch a GPS device for food safety tracking, with a four layers PCB inside. Where should we locate the antenna?
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