The space between copper planes can act as waveguides for RF frequencies. It makes trace impedance changes and signal losses.
To cut such waveguide effect, put vias, which is essentially a copper cylinder.
When the distances between vias are small enough compared to the wavelength, the board is like continuous copper material, instead of waveguide.
consulte Mais informação: Protótipo de montagem de PCB
#PCB Design
I want to implement a control system I designed for a light electric motorbike. I would like to mount it as professionally as possible on the chassis. It consists of a power system pcb and a SAMC21 development board which I’ll merge later once this all works properly. I have tried screwing it directly on the aluminium chassis but have found that shocks and vibrations from the horn disturbed the system or even destroyed it upon large shocks. Is there a specific way car and motorcycle manufacturers mount their electronics to make their system as robust as possible?
Semana passada, I visit a PCBA manufacturer for our new project. They not only introduce in-circuit tester but also flying probe tester, which can both ensure the quality level. assim, Why does the manufacturer use a flying probe tester when they already have an in-circuit tester?
Eu tenho um lote de PCBs com porcas SMT que foram montadas em uma PCB – a porca tem fita kapton na parte superior para permitir fácil coleta para montagem. Como podemos fazer isso mais rápido/qual é o melhor método?
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