WIRING ON THE DOUBLE-SIDED BOARD——DOUBLE SIDED PCB

There are wiring on both sides of the dual 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 Two Sided 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-panel double sided printed circuit
board and multilayer boards according to their structure. The double sided
circuit board is 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
Item Capabilities
Number of Layers Double Side
Material FR-4,CEM-3,HighTg, Aluminum,
Halogen Free
PCB Thickness Min.thickness 0.2mm(8mil)
Max.thickness 3.2mm(128mil)
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)
Min. Finished Hole Size 0.3mm(12mil)
Hole Size Tolerance (PTH) +/ -0.076mm (3 mil)
Hole Size Tolerance (NPTH) +/-0.05mm (2 mil)
Min. Line Width and Spacing 0.10mm (4 mil)
Min. Solder Mask Clearance 0.076mm (3 mil)
Min. Annular Ring 0.1mm (4mil)
Profile and V-Cut CNC-Routing, Stamping and Beveling, V-CUT,CNC
Special Process Micro-section, Chamfer for Gold Finger
Testing Electrical Testing, Controlled Impedance Testing, Flying Probe Test, X-
Ray Inspection AOI Test
Environment Clean room environmen , Dust-free workshop
Transportation Fedex, DHL, UPS, etc.
Files 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 firm as 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 price and our product,please contact us.

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