There are wiring on both sides of thedual layer PCB, but to use the wires on both sides, you must have a proper circuit connection between the two sides. This "bridge" between circuits is called a via. A via is a small hole filled or coated with metal on the PCB. It can be connected to the wires on both sides. Because the area of the double-sided board is twice as large as the single-sided board, the dual layer PCB solves the difficulty of wiring interleaving in the single-sided board (which can be conducted to the other side through the hole), and it is more suitable for more complicated circuits than the single-sided board.


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Features of Double SidePrototype PCB

SPEEDAPCB is a professional PCB supplier. We can provide customers with a one-stop service from PCB design to PCB production and assembly.

As a professional PCB manufacturer, we have 10 PCB production lines to manufacture double sided PCB board prototype. The machine works 24 hours a day, only to provide customers with satisfactory delivery time.

Our PCB boards can be divided into single-paneldouble sided circuit boardand multilayer boards according to their structure. The double sided circuit boardis a board with double-sided wiring on the board. An important feature of the double sided prototype PCB is that it has a guide hole to connect the wires on both sides into a circuit.

The double-panel wiring can be staggered with each other, which is the biggest difference from a single-panel; the double-panel is more suitable for complex circuits and has a wider range of use.

The cost of single and double panels is not much different. If there is no special requirement, all industries will give preference to double panels; after all, the performance and stability of double panels are better than single panels.

Parameters of Double Sided PCB



Number of Layers

Double Side


FR-4,CEM-3,HighTg, Aluminum,

Halogen Free

PCB Thickness

Surface finished

Gold Plating

Immersion Gold(Silver)

HAL Lead Free

Hot Air Solder Leveling(HASL)

Entek Coating (OSP)

Solder Mask

Any color Green, White,Black, Yellow, Red, Blue

Other printing

Gold Finger

Carbon Print, Peelable Mask

Solder Mask Plugged Hole

Copper thickness

1/ 2 oz (18 um) - 4 oz (140 um)

Hole Size Tolerance (PTH)

+/ -0.076mm (3 mil)

Hole Size Tolerance (NPTH)

+/-0.05mm (2 mil)

Profile and V-Cut

CNC-Routing, Stamping and Beveling, V-CUT,CNC

Special Process

Micro-section, Chamfer for Gold Finger


Electrical Testing, Controlled Impedance Testing, Flying Probe Test, X-Ray Inspection AOI Test


Clean room environmen , Dust-free workshop


Fedex, DHL, UPS, etc.


Gerber ,Protel ,Autocad ,Powerpcb, Orcad, etc.

SPEEDA Technology is an electronic technology company formed by a team with an average of 10+ years of electronic industry experience.PCB design firmas one of the best pcb manufacturers in china, the company is mainly engaged in the design, R&D (research and development), manufacturing, and sales of various printed circuit boards. We provide double sided pcb board prototype,double sided circuit board, blank circuit boards for sale.If you want to know double sided pcb priceand our product,please contact us.

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