Multilayer PCB Stackup Design & Impedance Control Solutions | NextPCB

NextPCB Multilayer PCB Stackups & Impedance Control Solutions

Provided by NextPCB | Quickly retrieve matching process stackups and impedance designs based on parameters

Technical Note:

The calculation model accounts for solder mask parameters. Default: 0.5 mil / 0.0127 mm thickness over trace, 1.2 mil / 0.0305 mm thickness over substrate, and Er=3.5.

The results are final reference values after coating, not bare copper impedance.

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NextPCB Intelligent Engineering System

| Data is for design reference only; production is subject to final engineering confirmation.

Technical Deep Dive

Advanced PCB Impedance Control & Manufacturing

A deep dive into NextPCB's impedance manufacturing capabilities, covering tolerance management (±5%), testing methodologies, and TDR report standards for high-speed signal integrity.

VIEW CAPABILITIES

How to Use Standard PCB Stackups for Controlled Impedance

Learn how to leverage standardized stackups to simplify your design process. Understand the relationship between prepreg thickness, dielectric constants (Dk), and consistent impedance results.

LEARN DESIGN STRATEGY

Frequently Asked Questions

Q1 How accurate are the impedance calculations provided by this tool?

The impedance values are calculated based on standard analytical formulas for typical PCB geometries. While highly accurate for pre-layout evaluation, actual results may vary slightly based on specific etching factors and resin content during mass production. For 100% precision, we recommend a free HQDFM check.

Q2 What if I cannot find my specific layer count or thickness?

This tool covers standard stackups from 8 to 20 layers. NextPCB is fully capable of manufacturing advanced PCBs up to 32 layers. If you need a custom stackup, specific dielectric materials (like Rogers or Megtron), or hybrid designs, please contact our engineering team directly.

Q3 Does NextPCB support blind and buried vias for these stackups?

Yes. While this tool displays standard through-hole stackups, we fully support complex HDI structures, including 1+N+1, 2+N+2, and any-layer interconnects with laser-drilled blind and buried vias for high-density designs. >NextPCB HDI PCB Manufacturing Capabilities

Q4 How can I save or export these design results?

Once the system generates the visual diagram and impedance table, you can use your browser's "Print to PDF" function to save the full report, or take a screenshot of the stackup diagram for your hardware design reviews and simulation records.

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or consult our experts for complex HDI and custom impedance requirements.

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