Do the scratches on the PCB have any bad effect to products?

11 months ago

We receive a batch of PCB with scratches from my supplier, but they think it is acceptable. I have never…

Why are there swirls or zig-zag lines on the PCB samples?

12 months ago

I send my PCB design to manufacturer for prototype, but they send back deviated PCB samples with additional zig-zag. Why…

How do I solder loose wires to a flexible PCB?

12 months ago

Try to repair electronic sphygmomanometer now. It seems wires fell off from the flexible PCB, leaving trail on there. How…

Is the FR4 Isola 370HR PCB important in PCB?

12 months ago

I receive the samples BOM of our PCBA factory. It remarks that PCB is FR4 Isola 370HR. What is this…

How can I fix my “D” key that sometimes isn’t responding when I click on it?

12 months ago

My mechanical keyborad is brand new so I cannot find where the culprit is. How I fix the key?

Why do people use multiple layers PCB? What are they required for?

12 months ago

We seldom use multiple layers in our product ranges, which cover all types of smoke alarm. What are they required…

How do you design a noise cancelling circuit?

12 months ago

I mean, headphones or ear buds are capable of reducing the ambient background noise. Can it realize by circuit design…

How can I make electrical connections over v-score line?

12 months ago

I was thinking how to make electrical connections over v-score line year ago and I was thinking that there is…

What are molex connectors? What are they used for?

12 months ago

My PCBA supplier use molex connectors on the samples order. What are they? What does they feature?

Is it possible to replace an automotive wiring harness with PCB?

12 months ago

Is it possible to replace an automotive wiring harness with PCB? For example, just have the cables attached on either…