# \#hdi-pcb

**URL:** https://sierraconnect.protoexpress.com/tag/hdi-pcb/305.md

[Latest](https://sierraconnect.protoexpress.com/latest.md) · [Categories](https://sierraconnect.protoexpress.com/categories.md) · [Tags](https://sierraconnect.protoexpress.com/tags.md)

---

## [How do you balance HDI design decisions with manufacturability and cost?](https://sierraconnect.protoexpress.com/t/how-do-you-balance-hdi-design-decisions-with-manufacturability-and-cost/4525)

<div class="topic-metadata">

**Author:** [@milan](https://sierraconnect.protoexpress.com/u/milan)\
**Replies:** 3\
**Last updated:** [September 30, 2026, 2:30pm UTC](https://sierraconnect.protoexpress.com/t/how-do-you-balance-hdi-design-decisions-with-manufacturability-and-cost/4525 "2026-09-30T14:30:56Z")

</div>

HDI designs provide greater routing density and flexibility, but choices such as layer count, sequential laminations, via structures, drilling methods, and trace/space can directly affect manufacturing complexity and cos…

---

## [Microvia Aspect Ratio: The One HDI Design Mistake That Messes Up Your PCB](https://sierraconnect.protoexpress.com/t/microvia-aspect-ratio-the-one-hdi-design-mistake-that-messes-up-your-pcb/4415)

<div class="topic-metadata">

**Author:** [@milan](https://sierraconnect.protoexpress.com/u/milan)\
**Replies:** 0\
**Last updated:** [August 26, 2026, 3:19pm UTC](https://sierraconnect.protoexpress.com/t/microvia-aspect-ratio-the-one-hdi-design-mistake-that-messes-up-your-pcb/4415 "2026-08-26T15:19:19Z")

</div>

Originally published at: Microvia Aspect Ratio: HDI Design Mistake | Sierra Circuits Designing a microvia with an excessive aspect ratio is one of the typical causes of reliability issues in HDI PCBs. It can result i…