Varnitronics

PCB Fabrication

Single-Side PCBs: simple circuits, serious economics.

One copper layer, one purpose: the most cost-effective way to put a proven, simple circuit into production at volume.

What is a single-side PCB?

A single-side (or single-layer) PCB carries all of its copper traces on one face of the board, with components mounted on the other. It is the oldest and simplest board construction — and for the right circuit, still the smartest one.

With no plated through-holes or lamination cycles, single-side boards have the fewest process steps of any PCB type. Fewer steps mean lower cost, higher yield, and faster turnaround — which is why high-volume, cost-sensitive products still rely on them today.

How it's made

01

Material preparation

Copper-clad laminate (FR-4, CEM-1, or aluminium-core for thermal designs) is cut to panel size.

02

Imaging & etching

Your trace pattern is transferred photographically and the unwanted copper is chemically etched away, leaving only your circuit.

03

Drilling & punching

Component holes are drilled or punched — no plating step, since there are no layer-to-layer connections.

04

Solder mask & legend

Solder mask protects the copper and silkscreen legend is printed for assembly reference.

05

Finish, profile & test

Surface finish is applied, boards are routed or V-scored out of the panel, and every board is electrically tested.

Where it's used

LED lighting & drivers
Power supplies & chargers
Home appliances
Relays & timers
Vending & metering
Simple sensor boards
Calculators & toys
Automotive lighting

When to choose it

  • Your circuit routes comfortably on one copper layer
  • Unit cost matters more than board size
  • You're producing at volume and yield economics dominate
  • Thermal designs where an aluminium core (MCPCB) carries LED heat away

Worth considering: If routing forces you into many jumper wires, or component density is climbing, a double-side board usually costs less overall than a congested single-side design — compare both in the instant quote tool.

Single-Side PCB capabilities
Layer count1
Base materialsFR-4, CEM-1, Aluminium (MCPCB)
Board thickness0.8 – 2.4 mm
Copper weight0.5 oz – 3 oz
Min track / spacing0.15 mm / 0.15 mm
Surface finishHASL, Lead-free HASL, OSP, ENIG
Solder maskGreen, blue, red, black, white
Typical prototype lead time5 – 8 working days

Frequently asked questions

When is a single-sided PCB the right choice?

When the circuit routes comfortably on one copper layer and cost matters — LED drivers, power supplies, appliance controls, and similar designs. It has the fewest manufacturing steps of any board type, so it is the cheapest to produce at volume.

Can single-sided PCBs handle LED and power applications that run hot?

Yes — that's exactly what aluminium-core (MCPCB) single-sided boards are for. The metal core conducts heat away from LEDs and power components far better than standard FR-4, extending component life.

What is the minimum order quantity for single-sided boards?

There is no rigid minimum — we quote from prototype quantities upward. Single-sided boards shine economically at higher volumes, where per-board pricing drops steeply; the quantity breaks are shown live in the online calculator.

Single-sided vs double-sided PCB — what's the cost difference?

A single-sided board is typically the cheaper option for the same size because it skips through-hole plating. But if a single-sided layout needs many jumper wires or a larger board to route, a compact double-sided design can win — price both configurations in seconds with the online quote tool.

Price your single-side PCB in seconds.

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