Author Topic: EasyEDA (JLCPCB) no so easy 100nF  (Read 1312 times)

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Offline PerranOakTopic starter

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EasyEDA (JLCPCB) no so easy 100nF
« on: June 27, 2021, 04:49:36 pm »
I have a two layer board with a through hole chip on the top. I want to put an SMD 100nF cap between the Vcc and ground pins of this chip on the bottom layer.

The problem is that when I flood the copper on the bottom, of course, the ground side of the cap is just connected to the copper layer not specifically to the chip's pin.

Does this matter?

If so, how do you force it to connect directly?

Cheers.
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Offline PlainName

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Re: EasyEDA (JLCPCB) no so easy 100nF
« Reply #1 on: June 28, 2021, 06:13:17 pm »
Perhaps doesn't solve your problem, but generally where I use a flood fill (as opposed to a plane) I route using normal tracking before applying the fill. That ensures that everything is connected regardless of fill, and there are no lengthy circuitous paths or wafer-thin connections (or, at least, none that I don't know about).
 

Offline thm_w

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Re: EasyEDA (JLCPCB) no so easy 100nF
« Reply #2 on: June 28, 2021, 09:19:10 pm »
Doesn't matter. The flood is low impedance enough.

Depending on your PCB software they may have a DRC rule for minimal flood thickness to avoid wafer-thin connections.
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Offline PerranOakTopic starter

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Re: EasyEDA (JLCPCB) no so easy 100nF
« Reply #3 on: June 30, 2021, 10:29:36 am »
Thank you both.
You can release yourself but the only way to go is down!
RJD
 


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