image of assembly process

PCB & Substrate Manufacturing

Order
Here

From rapid prototypes to production-ready boards, NFR delivers reliable PCBs and substrate manufacturing with responsive engineering support.

  • U.S. Manufacturing
  • RF & High-Speed Expertise
  • Prototype to Production
  • Rapid-Turn PCB Manufacturing

Trusted Across Industries

18+
Years of Experience
XX+ mil
PCB Delivered
99%
Repeat Customers
99+%
On-Time Delivery

Why Engineers Choose NFR

Rapid
Turnaround

2-layer boards in 2 business days.

4-layer boards in 3 business days.

Fast-turn options available for more complex designs.

U.S.-Based
Manufacturing

Domestic, ITAR-registered and ISO 9001-certified manufacturing with responsive communication.

RF  
& High-Speed Expertise

Hybrid stack-ups, controlled impedance, and specialized materials for demanding RF, microwave, and high-speed applications.

‍

Engineer-to-Engineer
Support

Direct access to engineers who can review designs and identify manufacturability issues before production.

Advanced
Finishes

Bondable ENIG and application-specific finishes supporting conventional assembly and advanced packaging.

Leading-Edge  
Materials

FR-4, high-frequency RF laminates, ceramic substrates, and specialty materials.

Your PCB,
From Design to Production

Whether you arrive with a completed design or need engineering support, NFR can take your PCB from initial requirements through fabrication and production.

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Built for
Specialized Applications

Don't see your requirements below? These are our standard online-order specifications.
Contact our PCB team for custom materials, dimensions, layer counts, finishes, and advanced requirements.

RF & Microwave

Controlled-impedance stack-ups, RF laminates, hybrid material constructions, and engineering support for demanding RF and microwave applications.

High-Speed Digital

Stack-ups and material selection engineered around signal integrity and demanding digital performance.

Advanced Packaging  Substrates

Rapid-turn substrates supporting wire bond, flip-chip, BGA, and other semiconductor packaging requirements.

Custom & Specialty  Builds

Specialized materials, finishes, geometries, and configurations for requirements outside standard PCB fabrication.

Have an unusual board requirement?

Standard Order
Specifications
for Rapid Turnaround

Order
Here

Need Something Outside Our Standard Specifications?
‍
NFR can support a wide range of PCB materials, configurations, and requirements.
Orders outside our standard specifications may require additional lead time.
Talk with our PCB team to discuss your requirements and available turnaround options.

Standard Board Specifications

Minimum Board Size
1in x 1in
Maximum Board Size
6in x 6in
Layer Count
1, 2, 4 or 6

Drilling

Minimum Hole Size
10mil
Minimum Annular Ring
10mil
Minimum Slot Size
25mil

Features

Minimum Trace/Space
6/6mil
Soldermask Color
Blue
Minimum Soldermask Web
4mil
Silkscreen Color
White
Minimum Silkscreen
Feature Size
4mil

Finish Platings Available

Electroless Nickel Immersion Gold (ENIG)
Immersion Tin
Bare Copper

Stocked Substrates for Rapid Turnaround

Manufacturer
Product
Tg (°C)
Dk
Df
Reference Frequency
Material System
Isola
370HR
180
4.04
0.0210
2 GHz
High-Tg FR-4 epoxy
Kingboard (KB)
KB-6167
170–180
4.60
0.0160
1 GHz
High-Tg FR-4 epoxy

Specialty Substrates

Manufacturer
Product
Tg (°C)
Dk
Df
Reference Frequency
Material System
AGC
RF-30VHTC
N/A (PTFE)
3.00
0.0014
2 GHz
PTFE / ceramic / woven glass
Isola
Astra MT77
200
3.00
0.0017
10 GHz
Ultra-low-loss RF/MW thermoset
Isola
FR408
180
3.67
0.0120
2 GHz
Mid-loss FR-4 epoxy
Isola
Tachyon 100G
215
3.02
0.0021
10 GHz
Ultra-low-loss thermoset
Panasonic
MEGTRON 6 (K series)
185
3.62
0.0046
13 GHz
Ultra-low-loss thermoset
Rogers
RO3003
N/A (PTFE)
3.00
0.0010
10 GHz
Ceramic-filled PTFE
Rogers
RO4350B
>280
3.48
0.0037
10 GHz
Hydrocarbon / ceramic

Standard Stack-Ups

2-Layer Stack-Up

2-layer PCB stack-up
Layer 1
1oz Outer Copper
Core 1
58mil +/- 10%
Layer 2
1oz Outer Copper

Start with one of our standard configurations for the fastest turnaround, or work with NFR to develop a custom stack-up for your electrical, RF, thermal, or mechanical requirements.

4-Layer Stack-Up

4-layer PCB stack-up
Layer 1
1oz Outer Copper
Core 1
25mil +/- 10%
Layer 2
1oz Inner Copper
Prepreg
6mil +/- 10%
Layer 3
1oz Inner Copper
Core 2
25mil +/- 10%
Layer 4
1oz Outer Copper

Need something outside our standard specifications?

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From Board to Packaging

NFR's PCB and substrate capabilities are part of a broader semiconductor development ecosystem. For programs requiring standard or advanced packaging, NFR can continue with substrate fabrication, die attach, wire bonding, flip-chip integration, assembly, and test through our U.S.-based OSAT capabilities.

Explore OSAT & Packaging

Need Design Support?

NFR engineers can support schematic development, layout, stack-up, DFM, and design optimization before fabrication.

Explore PCB Design
[background image] image of a workplace setting (for an ai healthcare company)
[background image] image of a workplace setting (for an ai healthcare company)
READY TO BUILD?

Send Us Your Design

Have production-ready files? Submit your board for a fast quote and production. Need help with materials, stack-up, manufacturability, or a specialized design? Talk directly with our PCB engineering team.

Frequently Asked Questions
PCB Design & Manufacturing

What types of PCBs does NFR manufacture?

NFR manufactures 1-, 2-, 4-, and up to 8-layer PCBs for prototypes and low-to-medium-volume production, including boards for RF, high-speed digital, mixed-signal, and other demanding applications.

How quickly can NFR manufacture a PCB?

Standard fast-turn capabilities include approximately 2 business days for 2-layer boards and 3 business days for 4-layer boards. Single-layer bare boards can be manufactured the same day, and expedited turnaround may be available for other designs depending on requirements. Lead times for higher layer counts and specialized designs vary based on complexity and material requirements.

Are NFR PCBs manufactured in the United States?

Yes. NFR's PCB manufacturing is U.S.-based, providing domestic production, responsive engineering support, and a more secure supply chain.

Does NFR manufacture low-volume and prototype PCBs?

Yes. Rapid prototypes and low-to-medium-volume programs are a core part of NFR's PCB offering. This makes NFR particularly well suited to engineering development, research, qualification, and specialized production programs.

What PCB materials does NFR support?

A list of PCB Materials can be found here.

Does NFR manufacture RF and microwave PCBs?

Yes. NFR supports RF and microwave applications, including high-frequency materials, hybrid stack-ups, controlled impedance designs, and specialized RF structures.

Does NFR support mixed-signal and high-speed digital PCBs?

Yes. NFR's broader experience in analog, mixed-signal, RF, and high-speed digital engineering provides additional expertise for boards with demanding signal-integrity and performance requirements.

What surface finishes does NFR offer?

Available finishes include ENIG, including Bondable Gold Plating, immersion tin, and bare copper. Other application-specific requirements can be discussed with the NFR manufacturing team.

Does NFR offer Bondable Gold Plating?

Yes. Bondable Gold Plating is available for applications requiring wire bonding and integration with advanced semiconductor packaging.

Can an NFR engineer review my PCB before manufacturing?

Yes. Customers can work directly with experienced engineers to discuss manufacturability, materials, stack-up, and other technical considerations before production.

Can NFR manufacture custom substrates as well as PCBs?

Yes. NFR manufactures PCBs and specialized substrates, including fine-pitch substrates supporting semiconductor packaging and integration applications.

Can NFR help after my PCB is manufactured?

Yes. Unlike a standalone PCB fabricator, NFR can also support ASIC development, wafer dicing, packaging, cleanroom processing, testing, bring-up, and production support.

Does NFR develop fine-feature substrates and interconnects?

Yes. NFR supports fine-feature substrates and specialized interconnect development for projects with demanding integration requirements. The work may include design, simulation, test structures, samples, and prototype builds to evaluate the proposed approach.