# \#hdi-stack-up

**URL:** https://sierraconnect.protoexpress.com/tag/hdi-stack-up/270.md

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## [When do you choose an HDI PCB stack-up over a standard one?](https://sierraconnect.protoexpress.com/t/when-do-you-choose-an-hdi-pcb-stack-up-over-a-standard-one/3872)

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**Author:** [@Pooja\_Mitra](https://sierraconnect.protoexpress.com/u/Pooja_Mitra)\
**Replies:** 2\
**Last updated:** [February 18, 2026, 1:59pm UTC](https://sierraconnect.protoexpress.com/t/when-do-you-choose-an-hdi-pcb-stack-up-over-a-standard-one/3872 "2026-02-18T13:59:06Z")

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One of the most common queries we receive from designers is: how do I know if my design requires HDI or standard build-up? This usually comes up when routing starts getting tight or when a fine-pitch BGA enters the …

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## [How to Design an HDI PCB Stack-up](https://sierraconnect.protoexpress.com/t/how-to-design-an-hdi-pcb-stack-up/3832)

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**Author:** [@Pooja\_Mitra](https://sierraconnect.protoexpress.com/u/Pooja_Mitra)\
**Replies:** 0\
**Last updated:** [January 28, 2026, 3:37pm UTC](https://sierraconnect.protoexpress.com/t/how-to-design-an-hdi-pcb-stack-up/3832 "2026-01-28T15:37:34Z")

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Originally published at: https://www.protoexpress.com/blog/how-to-design-hdi-pcb-stackup/ When designing an HDI PCB stack-up, you need to choose the right build-up architecture and define a via strategy that supports…