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UL Approved PCB Boards

Product Details

Place of Origin:Guangdong, China (Mainland)

Model Number:EUBM31

Base Material:FR-4

Copper Thickness:0.5oz-3oz

Board Thickness:0.3mm-4mm

Min. Hole Size:0.1mm

Min. Line Width:3mil

Min. Line Spacing:3mil

Surface Finishing:HASL, OSP, Immersion silver, etc.

Service:One-stop Service

Tolerance of finished thickness:±5%

Rang of finish baords Thickness:0.21-7.0mm

Layer Count:1-20 layers

Multi-Layer Boards (MLB) use more single-sided or double-sided wiring boards in order to increase the wiring area.

Printed circuit boards with one double-sided inner layer, two single-sided outer layer or two double-sided inner layer and two single-sided outer layer are called multi-layer printed circuit boards. The number of layers does not mean that there are several separate layers of wiring.

In special cases, empty layers are added to control the thickness of the board. Usually, the number of layers is even and contains the outermost two layers. Most of the motherboards are 4 to 8 layers, but technically, they can theoretically achieve nearly 100 layers of PCB boards.

Most large supercomputers use fairly multi-tier motherboards, but because such computers can be replaced by clusters of many ordinary computers, super-multi-tier boards have gradually become unused.

Because the PCB layers are closely integrated, it is not easy to see the actual number, but if you look carefully at the motherboard, you can still see.

SHENZHEN FOUND PRINTED CIRCUIT BOARD CO.,LTD

According to the design of PCB circuit board, the price will be decided by the material of PCB, the number of layers of PCB, the size of PCB, the quantity of each production, the production process, the minimum line width and line spacing, the minimum aperture and the number of holes, and the special process.

UL Approved PCB Boards

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