# \#reliability

**URL:** https://sierraconnect.protoexpress.com/tag/reliability/44.md

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## [Aspect ratio size](https://sierraconnect.protoexpress.com/t/aspect-ratio-size/180)

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**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Replies:** 0\
**Last updated:** [October 2, 2023, 7:05pm UTC](https://sierraconnect.protoexpress.com/t/aspect-ratio-size/180 "2023-10-02T19:05:21Z")

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TIP: The larger the aspect ratio, the more challenging it becomes to achieve a reliable copper plating inside the vias. Hence, smaller the aspect ratio, higher the PCB reliability.