# \#flex

**URL:** https://sierraconnect.protoexpress.com/tag/flex/30.md

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## [Webinar: Don't Design a Flex PCB like a Rigid Board](https://sierraconnect.protoexpress.com/t/webinar-dont-design-a-flex-pcb-like-a-rigid-board/4001)

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**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Replies:** 1\
**Last updated:** [May 15, 2026, 4:23pm UTC](https://sierraconnect.protoexpress.com/t/webinar-dont-design-a-flex-pcb-like-a-rigid-board/4001 "2026-05-15T16:23:51Z")

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Thanks for your interest in our webinar on designing for flex and rigid-flex. Click the link below to get the slides and recording.

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## [Webinar: Flex PCB Stack-Up Design and Material Selection](https://sierraconnect.protoexpress.com/t/webinar-flex-pcb-stack-up-design-and-material-selection/3671)

<div class="topic-metadata">

**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Replies:** 1\
**Last updated:** [November 24, 2025, 5:55pm UTC](https://sierraconnect.protoexpress.com/t/webinar-flex-pcb-stack-up-design-and-material-selection/3671 "2025-11-24T17:55:40Z")

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Thanks for your interest in our flex webinar! Missed the webinar? Click the link below to watch the recording.

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## [POLL: How often do you use flex or rigid-flex PCBs?](https://sierraconnect.protoexpress.com/t/poll-how-often-do-you-use-flex-or-rigid-flex-pcbs/3496)

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**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Replies:** 0\
**Last updated:** [August 22, 2025, 3:58pm UTC](https://sierraconnect.protoexpress.com/t/poll-how-often-do-you-use-flex-or-rigid-flex-pcbs/3496 "2025-08-22T15:58:14Z")

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poll

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## [Case Study: Designing Loose-Leaf Rigid-Flex PCB Stack-up For Enhanced Flexibility](https://sierraconnect.protoexpress.com/t/case-study-designing-loose-leaf-rigid-flex-pcb-stack-up-for-enhanced-flexibility/1455)

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**Author:** [@Mohamed\_Faheemuddin](https://sierraconnect.protoexpress.com/u/Mohamed_Faheemuddin)\
**Replies:** 0\
**Last updated:** [May 23, 2024, 1:41pm UTC](https://sierraconnect.protoexpress.com/t/case-study-designing-loose-leaf-rigid-flex-pcb-stack-up-for-enhanced-flexibility/1455 "2024-05-23T13:41:02Z")

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Originally published at: https://www.protoexpress.com/blog/case-study-implementing-loose-leaf-rigid-flex-pcb-stackup-for-enhanced-flexibility/ When designing a flex circuit board, balancing structural reliability and…

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## [7 rigid-flex DFM errors you can avoid](https://sierraconnect.protoexpress.com/t/7-rigid-flex-dfm-errors-you-can-avoid/696)

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**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Replies:** 0\
**Last updated:** [December 12, 2023, 5:41pm UTC](https://sierraconnect.protoexpress.com/t/7-rigid-flex-dfm-errors-you-can-avoid/696 "2023-12-12T17:41:50Z")

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## [TIP: Flex PCB thickness](https://sierraconnect.protoexpress.com/t/tip-flex-pcb-thickness/223)

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**Author:** [@atar.mittal](https://sierraconnect.protoexpress.com/u/atar.mittal)\
**Replies:** 0\
**Last updated:** [October 10, 2023, 1:49am UTC](https://sierraconnect.protoexpress.com/t/tip-flex-pcb-thickness/223 "2023-10-10T01:49:13Z")

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TIP: Avoid unnecessary circuit thickness which hinders flexible capabilities. The thickness of the flex area is determined by the bend radius needed. If parts of the flex circuit need to be thicker, add stiffeners.

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## [7 Must-Knows for Your Flex PCB Design](https://sierraconnect.protoexpress.com/t/7-must-knows-for-your-flex-pcb-design/168)

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**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Replies:** 0\
**Last updated:** [September 28, 2023, 6:44pm UTC](https://sierraconnect.protoexpress.com/t/7-must-knows-for-your-flex-pcb-design/168 "2023-09-28T18:44:58Z")

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Originally published at: https://www.protoexpress.com/blog/5-must-knows-for-your-first-flex-design/ Flex PCB design requires a slightly different approach than rigid PCBs. While flex PCBs can provide major savings in…