# \#flex-pcb-design

**URL:** https://sierraconnect.protoexpress.com/tag/flex-pcb-design/150.md

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

---

## [Stiffeners requirement for flexible PCB design](https://sierraconnect.protoexpress.com/t/stiffeners-requirement-for-flexible-pcb-design/3362)

<div class="topic-metadata">

**Author:** [@gigio](https://sierraconnect.protoexpress.com/u/gigio)\
**Replies:** 5\
**Last updated:** [July 17, 2025, 4:58pm UTC](https://sierraconnect.protoexpress.com/t/stiffeners-requirement-for-flexible-pcb-design/3362 "2025-07-17T16:58:01Z")

</div>

I’m prototyping a 250 mm × 6 mm flexible PCB that carries three 3 × 3 mm DFN packages (hand-assembled). All DFNs will be on the top side; any stiffeners would go on the bottom, opposite the components. Design guides from…

---

## [Case Study: Reverse Engineering a Flex PCB to Generate Design Files](https://sierraconnect.protoexpress.com/t/case-study-reverse-engineering-a-flex-pcb-to-generate-design-files/1547)

<div class="topic-metadata">

**Author:** [@Mohamed\_Faheemuddin](https://sierraconnect.protoexpress.com/u/Mohamed_Faheemuddin)\
**Replies:** 0\
**Last updated:** [June 25, 2024, 3:08pm UTC](https://sierraconnect.protoexpress.com/t/case-study-reverse-engineering-a-flex-pcb-to-generate-design-files/1547 "2024-06-25T15:08:17Z")

</div>

Originally published at: https://www.protoexpress.com/blog/case-study-reverse-engineering-flex-pcb-to-generate-design-files/ Our PCB design engineers reverse-engineered a flex circuit to recreate the design files and…