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Rigid-Flex PCB

1.Metal-plated holes and PTH Pad on FPC can realize build-buried holes connecting and soldering;
2.Isolated design of multi-layer flexible FPC can fulfill the needs of wide angle or dynamic bending;
3.Exposed FPC and IC stiffener enable the connection of placed components including modules or ICs at any angles;
4.FPC with electromagnetic shielding film fulfills the needs of the electrostatic shielding, magnetic shielding, low frequency alternating magnetic shielding and high frequency electromagnetic shielding;
5.laser blind holes on rigid-flex PCB enable the connection of any layers;
6.Metal-laminated rigid-flex PCB enable better heat radiating.

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Board TypeRigid-Flex
Layer Count≤24(flex layer ≤12)
MaterialRigid materials:FR4TG170,Rogers 4000 series High frequency materials and high speed materials; Flex materials:Thinflex PI,High speed PI.
Inner Copper≤2oz
Outer Copper≤2oz
Board Thickness0.4-6.5mm
Surface ThreamentENIG,ENEPIG
Technicial Feature1.HDI rigid-flex PCB with laser blind hole;                                                    
2.With the structure of electromagnetic shielding film;                               
3.Aluminum based rigid-flex PCB;                                                                
4.Rigid-flex PCB with flexible board arranged at the outer layer;                  
5.Rigid-flex PCB with PTH holes in flexible board area;                              
6.Laser drilling cross layer  technology; 
7.Small spacing pre uncovering Technology (flexible area width 2.0 mm); 
8.Bonding of the flex area.
Application AreaElectronic Products,Communication Products,Medical Products,Information Technology Products.

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pcb fab

Kingbrother provides a portfolio of high standard PCB products, such as multi-layer PCB up to 64L, HDI PCB, rigid-flex PCB, heavy copper PCB, high frequency PCB, high Speed PCB, high TG PCB, impedance controlled PCB, which are made from a wide range of top-brand laminates e.g. Rogers, Panasonic, SHENGYI, etc.

Kingbrother possesses leading PCB techniques in the industry, such as maximum 64 layers, 12mm finished board thickness, 15oz heavy copper and minimum 2.5/2.5 mil line width and spacing. More capabilities are available for your customization.

Kingbrother is also known as a PCB manufacturer with top speed. Flexible delivery schedules are all based on customers’ needs. A double layer PCB could be done in 24 hours, supported by a 24*7 engineering and manufacturing system.


Prototyping Lead Time (<1㎡)

LayerLead timeQuick-turn Lead Time
2 layers5 Days48 Hours
4 layers6 Days72 Hours
6 layers7 Days72 Hours
8 layers8 Days96 Hours
10 layers9 Days96 Hours
12 layers10 Days96 Hours
14 layers12 Days120 Hours
16 layers14 Days120 Hours
18 layers15 Days120 Hours
> =20 layers16 Days144 Hours

mass production

layer countsLead Time (Day)
 Sqm  2L4L6L8L10L12L14L16L18L20L+


KINGBROTHER Technology is a high-tech enterprise group specializing in electronic hardware design, manufacturing and taking service as the key competitiveness. With the headquarter in Shenzhen, we established R&D and manufacturing center based in Shenzhen, Huizhou, Hangzhou and Xian. The sales and service network has covered the countries where first-class electronic products R&D centers locate in the world.


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main equipment


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Kingbrother has been always focusing on high-stable and high-reliable manufacturing with high quality operational management, introducing the complete quality management system and non-disclosure system. Kingbrother has been certificated with ISO9001 / ISO14001 / OHSAS18001 / IATF16949 as the quality system and UL / CQC / CCC on products. The central lab was qualified by CNAS and CMA, with good assurance to serve high-reliable requirements.


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