Why NFR
PCB manufacturing that feels engineered, not outsourced.
The goal is not only to take files and return boards. The goal is to reduce uncertainty, catch avoidable issues early, and keep the process understandable for teams working under real schedule pressure. Whether you are ordering a straightforward board or a more advanced substrate-driven build, the experience should feel direct, responsive, and technically grounded.
Fast
Review and order flow designed to move quickly once files are ready.
Clear
Customer communication that explains what is needed and what happens next.
Secure
U.S.-based made for customers who care about tighter control and visibility.
Practical
A process built for engineers, hardware teams, and product builders who need technical answers.
Our Basic Service Specs
Core board capabilities and ready-to-order substrate options.
Below is a clean snapshot of the standard capabilities we currently support for quick-turn board programs, drilling, finishes, and stack-up options. If your program needs something outside of these defaults, our team can review it directly with you.
| Specification |
Value |
| Minimum Board Size |
1in x 1in |
| Maximum Board Size |
6in x 6in |
| Layer Count |
1, 2, 4 or 6 |
| Minimum Hole Size |
10mil |
| Minimum Annular Ring |
10mil |
| Minimum Slot Size |
25mil |
| Minimum Trace/Space |
6/6mil |
| Soldermask Color |
Blue |
| Minimum Soldermask Web |
4mil |
| Silkscreen Color |
White |
| Minimum Silkscreen Feature Size |
4mil |
| Electroless Nickel Immersion Gold (ENIG) |
| Immersion Tin |
| Bare Copper |
| Manufacturer |
Thicknesses |
Cu Thickness |
| KINGBOARD KB-6167F |
10, 14, 28, 58mil |
0.5oz or 1oz |
| ISOLA 370HR |
10, 14, 28, 58mil |
0.5oz or 1oz |
| ISOLA ASTRA MT77 |
10 mil |
0.5oz |
Reference Stackups: these standard options provide a quick baseline for the most common 2-layer and 4-layer builds.
| 2 Layer |
Description |
| Layer 1 |
1oz Outer Copper |
| Core |
58mil +/- 10% |
| Layer 2 |
1oz Outer Copper |
| 4 Layer |
Description |
| 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 |