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.
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-panel and multilayer boards according to their structure. The double sided PCB 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.
|Number of Layers||Double Side|
|Surface finished||Gold Plating|
|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.|