←back to thread

PCBs, copper pours, ground planes, and you

(lcamtuf.substack.com)
284 points surprisetalk | 1 comments | 30 Jan 25 04:33 UTC | HN request time: 0s | source
Show context
kazinator ◴[30 Jan 25 06:06 UTC] No.42875336[source]▶
One reason for copper pours in a DIY hobby context is that copper pours vastly reduce how much copper has to be etched away. This requires less chemical like ferric chloride and less time.

You are making a capacitor, though, when you do that.

replies(1): >>42881599 #
1. mort96 ◴[30 Jan 25 20:03 UTC] No.42881599[source]▶
Surely the capacitor effect isn't that significant if you add in a bunch of stitching vias though, right?