Multilayer printed circuit board & Multi-layer pcb

//Multilayer printed circuit board & Multi-layer pcb

Multilayer printed circuit board & Multi-layer pcb

Multi-layer-pcb-6LMultilayer printed circuit boards (Multilayer PCBs) refer to printed circuit board has more than two copper layers, such as 4 layers PCB, 6 layers PCB, etc. Multilayer circuit boards were essential in the advancement of modern computing. Currently, we can produce up to 38 layers FR4 rigid PCB.

The multilayer PCB basic construction and fabrication are similar to micro chip fabrication on a macro size. Multilayer pcb can be built on ceramic pcb, copper, and aluminum based pcb. Blind and buried vias are commonly produced, along with pad on via technology. More layers it is, more complex & difficult the pcb manufacturing will be, and more expensive the cost will be. The lead time of multi-layer PCB is different from normal one; please contact us for a exact lead time.

Multilayer PCB consist of 3 or more circuit layers bonded together by a thickness of insulating material called prepreg and core. Multilayer printed circuit boards are most complicated than others, and are generally considered to be the most sophisticated PCB product due to their construction methods and design complexities.

These are a few of the applications using multilayer printed circuit boards:

● Communications ● Industrial controls
● GPS technology ● Aerospace
● Computers ● Military
● Medical ● Satellite systems

General specification for Multi-layer printed circuit board

1, 4-38 layers
2, Board finished thickness: 0.3mm-7.0mm
3, Material: FR-4, CEM-1, CEM-3, High TG, FR4 halogen Free, Rogers, Telfon.
4, Max. Finished board size: 23*25(580*900mm)
5, Min. Drilled hole size: 6mil(0.15mm)
6, Min. Line width: 3mil(0.075mm), Min. Line spacing: 3mil(0.075mm)
7, Surface finish/treatment: HASL/HASL lead free, Chemical tin, ENIG,Immersion Silver, OSP, etc.
8, Copper thickness: 0.5-20 oz
9, Solder mask color: Green/yellow/black/white/red/blue
10, Copper thickness in hole: >25.0 um(>1mil)

 

 

1. 4 layers Semi hole multilayer printed circuit board

4L-semi-hole-multilayer-pcb        4Lsemi hole multilayer pcb
        Technical description,
        Material: FR-4 Tg150 Halogen free
        Board thickness: 0.8mm
        Surface finished: Immersion gold
        Copper thickness: 1 Oz for all layers
        Solder mask: TaiYo blue
        Min through hole: 0.2mm
        Consumer Electronics

 

  

2. 4 layers 94V-0 multilayer printed circuit board

        4L PCB
        Technical description,
        Material: FR-4 Tg170 
        Board thickness: 1.60mm
        Surface finished: Immersion gold
        Copper thickness: 1 Oz for all layers
        Solder mask: TaiYo Green
        Min through hole: 0.2mm
    

 

 

3. 4 layers Meter PCB

        4L PCB
        Technical description,
        Material: FR-4 Tg135 
        Board thickness: 1.60mm
        Surface finished: HASL LF
        Copper thickness: 1/1/1/1 oz
        Solder mask: Green
        Min Line Width/Spacing:0.127mm/0.127mm 
    

 

 

 

4. 4 Layers FR4 Tg170℃ Halogen free 94V-0 PCB

        4L multilayer printed circuit board 
        Technical description,
        Material: FR4 Tg170℃ Halogen free
        Board thickness: 1.58mm
        Surface finished: Immersion gold
        Copper thickness: 1 Oz for all layers
        IPC class 3

 

 

 

5. 6L Power supply printed circuit board

        6L multilayer printed circuit board
        Technical description,
        Material: FR4 Tg135℃ 
        Board thickness: 1.58mm
        Surface finished: HASL 
        Copper thickness: 1 Oz for all layers
        Unit size/mm: 160*234mm

 

 

 

 

 

6.6L prototypes Multilayer PCB board

        6L multilayer printed circuit board
        Technical description,
        Material: FR4 Tg170℃ 
        Board thickness: 1.58mm
        Surface finished: ENEPIG 
        Copper thickness: 1 Oz for all layers
        Suitable for gold bonding

    

 

 

 

7. 6 Layers multi-layer PCB

Multilayer-printed-circuit-board-6L        6L multilayer printed circuit board
        Technical description,
        Material: FR-4 Tg170
        Board thickness: 1.58mm
        Surface finished: Immersion gold
        Copper thickness: 1 Oz for all layers
        Min.line width/space: 5mil
        Min through hole: 0.2mm
        Medical

 

       

8. 8 Layers Custom Rigid PCB

        8L multilayer printed circuit board
        Technical description,
        Material: FR-4 Tg170
        Board thickness: 1.60mm
        Surface finished: Immersion gold
        Copper thickness: 1 Oz for all layers
        Min.line width/space: 4/4mil
        Min through hole: 0.2mm
        Communicationl

 

9. 10 layers Multilayer printed wiring board

10L-Multilayer-printed-wiring-board        10L multilayer printed wiring board
        Technical description,
        Material: FR-4 Tg170
        Board thickness: 1.6mm
        Surface finished: Immersion gold+Controlled Impedance
        Copper thickness: H Oz for all layers
        Min.line width/space: 3.5mil
        Min through hole: 0.2mm
        Communications

 

10. 10 layers multilayer pcb

10L-Multilayer-pcb        10L multilayer pcb
        Technical description,
        Material: FR-4 Tg170
        Board thickness: 1.6mm
        Surface finished: Immersion gold+Controlled Impedance
        Copper thickness: 1 Oz for all layers
        Min.line width/space: 4mil
        Min through hole: 0.15mm
                                                                  Military

11. 18 layers multilayers board from China pcb factory Hitechpcb

18L-Multilayer-board        18L multilayer board
        Technical description,
        Material: FR-4 Tg180
        Board thickness: 2.2mm
        Surface finished: Immersion gold+Controlled Impedance
        Copper thickness: 1 Oz for all layers
        Min.line width/space: 4mil
        Min through hole: 0.25mm
        Medical