# \#hdi **URL:** https://sierraconnect.protoexpress.com/tag/hdi/11.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)
**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")
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… --- ## [Webinar: How to Nail Your HDI PCB Routing](https://sierraconnect.protoexpress.com/t/webinar-how-to-nail-your-hdi-pcb-routing/4196)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 1\ **Last updated:** [July 23, 2026, 5:22pm UTC](https://sierraconnect.protoexpress.com/t/webinar-how-to-nail-your-hdi-pcb-routing/4196 "2026-07-23T17:22:01Z")
Thanks for your interest in our HDI PCB routing webinar. Missed the webinar? Click the link below to watch the recording and get the slides. Post your questions below! --- ## [Webinar: Managing Return Paths and Crosstalk in HDI Layouts](https://sierraconnect.protoexpress.com/t/webinar-managing-return-paths-and-crosstalk-in-hdi-layouts/4028)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 1\ **Last updated:** [May 29, 2026, 4:50pm UTC](https://sierraconnect.protoexpress.com/t/webinar-managing-return-paths-and-crosstalk-in-hdi-layouts/4028 "2026-05-29T16:50:44Z")
Thanks for your interest in our HDI webinar. Missed the webinar? Click the link below to watch the recording and get the slides. --- ## [HDI vs. Standard PCB](https://sierraconnect.protoexpress.com/t/hdi-vs-standard-pcb/4056)
**Author:** [@Mohamed\_Faheemuddin](https://sierraconnect.protoexpress.com/u/Mohamed_Faheemuddin)\ **Replies:** 0\ **Last updated:** [May 12, 2026, 11:58am UTC](https://sierraconnect.protoexpress.com/t/hdi-vs-standard-pcb/4056 "2026-05-12T11:58:38Z")
Standard and HDI PCBs differ primarily in routing capability, via technology, fabrication complexity, and miniaturization support. Conventional multilayer boards are suitable for moderate-density layouts and standard … --- ## [Webinar: Via-in-Pad and Microvia Design Techniques for HDI Boards](https://sierraconnect.protoexpress.com/t/webinar-via-in-pad-and-microvia-design-techniques-for-hdi-boards/3664)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 1\ **Last updated:** [November 10, 2025, 5:19pm UTC](https://sierraconnect.protoexpress.com/t/webinar-via-in-pad-and-microvia-design-techniques-for-hdi-boards/3664 "2025-11-10T17:19:24Z")
In this webinar, you’ll learn how to design and implement via-in-pad and microvia structures effectively. You will gain practical insights on selecting materials, defining via fill types, and applying DFM guidelines for … --- ## [Designing and Fabricating Ultra-HDI PCBs](https://sierraconnect.protoexpress.com/t/designing-and-fabricating-ultra-hdi-pcbs/3540)
**Author:** [@Mohamed\_Faheemuddin](https://sierraconnect.protoexpress.com/u/Mohamed_Faheemuddin)\ **Replies:** 0\ **Last updated:** [September 10, 2025, 3:51pm UTC](https://sierraconnect.protoexpress.com/t/designing-and-fabricating-ultra-hdi-pcbs/3540 "2025-09-10T15:51:40Z")
Originally published at: https://www.protoexpress.com/blog/designing-fabricating-uhdi-pcbs/ Ultra-HDI PCBs are becoming essential in high-speed applications such as AI systems, where circuit density and signal integr… --- ## [OPEN DISCUSSION: What challenges have you faced with HDI PCBs?](https://sierraconnect.protoexpress.com/t/open-discussion-what-challenges-have-you-faced-with-hdi-pcbs/3208)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 5\ **Last updated:** [May 25, 2025, 12:30am UTC](https://sierraconnect.protoexpress.com/t/open-discussion-what-challenges-have-you-faced-with-hdi-pcbs/3208 "2025-05-25T00:30:27Z")
HDI designs can push performance but they also push limits. From stacked microvias to material selection and layer registration, HDI PCBs come with their own set of challenges. What’s been the toughest part of working … --- ## [WEBINAR HIGHLIGHT: Manufacturing Stacked Vias](https://sierraconnect.protoexpress.com/t/webinar-highlight-manufacturing-stacked-vias/3110)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 0\ **Last updated:** [April 21, 2025, 4:34pm UTC](https://sierraconnect.protoexpress.com/t/webinar-highlight-manufacturing-stacked-vias/3110 "2025-04-21T16:34:31Z")
https://protoexpress.wistia.com/medias/x5vo5u1tfc This part of our webinar on via design and manufacturing highlighted important considerations when choosing between stacked and staggered vias for high-density interconn… --- ## [Live Q&A: HDI PCB Design and Fabrication](https://sierraconnect.protoexpress.com/t/live-q-a-hdi-pcb-design-and-fabrication/2575)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 8\ **Last updated:** [October 23, 2024, 9:49pm UTC](https://sierraconnect.protoexpress.com/t/live-q-a-hdi-pcb-design-and-fabrication/2575 "2024-10-23T21:49:13Z")
Mark your calendars to join our LIVE Q&A on HDI PCB design and fabrication! Post your questions in this thread and our experts will reply during this live Q&A which will be hosted on Zoom. Save to your Outlook calendar… --- ## [Ask Me Anything about Blind and Buried Vias](https://sierraconnect.protoexpress.com/t/ask-me-anything-about-blind-and-buried-vias/1764)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 10\ **Last updated:** [September 5, 2024, 9:44pm UTC](https://sierraconnect.protoexpress.com/t/ask-me-anything-about-blind-and-buried-vias/1764 "2024-09-05T21:44:14Z")
Join our next Ask Me Anything about blind and buried vias where you can ask us questions on: • Design rules and constraints • Benefits of HDI • Cost implications • And much more! :speech\_balloon: Question submission… --- ## [Webinar: Using HDI to Improve Signal Integrity and Power Integrity Performance](https://sierraconnect.protoexpress.com/t/webinar-using-hdi-to-improve-signal-integrity-and-power-integrity-performance/1368)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 10\ **Last updated:** [May 15, 2024, 8:13pm UTC](https://sierraconnect.protoexpress.com/t/webinar-using-hdi-to-improve-signal-integrity-and-power-integrity-performance/1368 "2024-05-15T20:13:25Z")
Thank you for your interest in our webinar on using HDI to improve SI/PI by @happy2holden. If you’ve filled out the form on our registration page, you are registered and will receive an email confirmation within 5 minut… --- ## [New HDI BGA Breakouts and Routing Strategies](https://sierraconnect.protoexpress.com/t/new-hdi-bga-breakouts-and-routing-strategies/1104)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 1\ **Last updated:** [March 20, 2024, 9:50pm UTC](https://sierraconnect.protoexpress.com/t/new-hdi-bga-breakouts-and-routing-strategies/1104 "2024-03-20T21:50:50Z")
The recording link is below. --- ## [HDI Fabrication Problems, Quality Control and Reliability Issues by Happy Holden](https://sierraconnect.protoexpress.com/t/hdi-fabrication-problems-quality-control-and-reliability-issues-by-happy-holden/748)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 3\ **Last updated:** [January 10, 2024, 4:27am UTC](https://sierraconnect.protoexpress.com/t/hdi-fabrication-problems-quality-control-and-reliability-issues-by-happy-holden/748 "2024-01-10T04:27:23Z")
What you will learn: HDI definitions, types and markets: Not all HDI products are the SAME! History of HDI: It helps to understand why HDI was developed in 1982 HDI fabrication problems and issues: Some of the hurdles … --- ## [Ask Me Anything with Happy Holden](https://sierraconnect.protoexpress.com/t/ask-me-anything-with-happy-holden/749)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 14\ **Last updated:** [January 4, 2024, 2:36pm UTC](https://sierraconnect.protoexpress.com/t/ask-me-anything-with-happy-holden/749 "2024-01-04T14:36:08Z")
Start posting your HDI questions now and Happy will answer on January 3rd! --- ## [High-Speed and HDI PCB Design Strategies by Syed Ubaid Ali Warsi](https://sierraconnect.protoexpress.com/t/high-speed-and-hdi-pcb-design-strategies-by-syed-ubaid-ali-warsi/267)
**Author:** [@Pooja\_Mitra](https://sierraconnect.protoexpress.com/u/Pooja_Mitra)\ **Replies:** 0\ **Last updated:** [October 25, 2023, 11:29am UTC](https://sierraconnect.protoexpress.com/t/high-speed-and-hdi-pcb-design-strategies-by-syed-ubaid-ali-warsi/267 "2023-10-25T11:29:50Z")
Originally published at: https://www.protoexpress.com/blog/high-speed-hdi-pcb-design-strategies/ Syed Ubaid Ali Warsi, the owner of Wavetroniks, provided his insights into high-speed and HDI PCB design strategies at … --- ## [TIP: Choosing materials for HDI boards](https://sierraconnect.protoexpress.com/t/tip-choosing-materials-for-hdi-boards/264)
**Author:** [@atar.mittal](https://sierraconnect.protoexpress.com/u/atar.mittal)\ **Replies:** 0\ **Last updated:** [October 24, 2023, 12:25am UTC](https://sierraconnect.protoexpress.com/t/tip-choosing-materials-for-hdi-boards/264 "2023-10-24T00:25:25Z")
The success of high-density designs heavily relies on the careful selection of appropriate HDI PCB materials that can considerably impact signal integrity, thermal management, and the overall performance of your design. … --- ## [Challenges with HDI routing](https://sierraconnect.protoexpress.com/t/challenges-with-hdi-routing/139)
**Author:** [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\ **Replies:** 0\ **Last updated:** [September 26, 2023, 5:02pm UTC](https://sierraconnect.protoexpress.com/t/challenges-with-hdi-routing/139 "2023-09-26T17:02:04Z")
What are your biggest challenges when routing HDI boards?