# SPOT THE FLAW: Not all copper voids are harmless

**URL:** <https://sierraconnect.protoexpress.com/t/spot-the-flaw-not-all-copper-voids-are-harmless/4611>\
**Category:** PCB Design Challenges\
**Created:** [October 28, 2026, 4:51pm UTC](https://sierraconnect.protoexpress.com/t/spot-the-flaw-not-all-copper-voids-are-harmless/4611 "2026-10-28T16:51:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![lucy.sierracircuits](https://sea2.discourse-cdn.com/sierraconnect/user_avatar/sierraconnect.protoexpress.com/lucy.sierracircuits/32/8_2.png) [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Post date:** [October 28, 2026, 4:51pm UTC](https://sierraconnect.protoexpress.com/t/spot-the-flaw-not-all-copper-voids-are-harmless/4611/1 "2026-10-28T16:51:12Z")

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![flaw](https://global.discourse-cdn.com/sierraconnect/original/1X/9d35083a9af925010b810be1cebe81e0af18f45e.png)

Answer on Friday…