전문 고주파 회로 기 판,고속 회로 기 판,IC 패 키 징 기 판,반도체 테스트 판,HDI 회로 기 판,소프트 하 드 결합 판,양면 다 층 판,PCB 디자인 및 PCBA 제조
믿 을 만 한 PCB 회로 제조 업 체!! Contact Us
0
Special PCB

Special PCB

Special PCB

Special PCB

  • Double sided aluminum PCB
    Double sided aluminum PCB

    Model : Double sided aluminum PCB

    Material : aluminum base

    Layer : 2Layers

    Color : White/Black

    Finished Thickness : 1.2mm

    Copper Thickness : 1OZ

    Surface Treatment : Lead-free HASL

    Thermal Conductivity : 2.0w/m.k

    Special Process : The 2layer aluminum base needs to be made according to 4layer PCB

    Application : High end LED desk lamp


    Product details Technical specification

    Aluminum Based PCB is a kind of Metal Based PCB, which has good heat dissipation function. Generally speaking, the single-sided Aluminum Based PCB is composed of three layers: circuit layer, dielectric layer and aluminum base layer; while the structure of Double sided aluminum PCB is more complex, which is composed of circuit layer, dielectric layer, aluminum base layer, dielectric layer and circuit layer. The aluminum plate material of aluminum base has high thermal conductivity, which is suitable for drilling, punching, cutting and other conventional machining methods. The addition of aluminum plate makes the aluminum based PCB have excellent thermal conductivity, and the thermal insulation dielectric layer provides high strength electrical insulation performance. The device with surface mounted on PCB generates heat, and the heat is transmitted to the aluminum base through the dielectric layer, and the heat is transferred out by the aluminum base layer, so as to realize the heat dissipation of the device. However, due to the conductivity of aluminum, it can not realize the performance of inter layer interconnection, so the application of Aluminum Based PCB is also limited.


    The traditional resin is used to fill the large holes in the existing double-sided aluminum based PCB to realize the interconnection between layers. However, there are many disadvantages: firstly, the traditional resin filling the large holes is easy to produce bubbles, and cracks are easy to occur at high temperature, so the yield is very low; secondly, the thermal conductivity of the traditional epoxy resin is only 0.2W / (m.k), More and more can not meet the heat dissipation requirements of aluminum substrate, and the heat dissipation coefficient of Aluminum Based PCB produced in this way, the heat dissipation coefficient at hole position and the heat dissipation coefficient between layers are different, which can not meet the quality requirements of products.

    Double sided aluminum PCB

    Double sided aluminum PCB

    Double sided aluminum PCB is generally composed of circuit layer, insulation layer, aluminum base layer, insulation layer and circuit layer. It is a kind of metal PCB circuit board with good heat dissipation function. This kind of PCB board has wiring on both sides, but to use the wires on both sides, it is necessary to have proper wiring connection between the two sides.


    1、 PCB circuit layer on double sided aluminum substrate

    The circuit layer is copper, which conducts electricity.


    2、 PCB insulation layer on double sided aluminum substrate

    The insulation layer is made of thermal insulation material, which plays a role in whether the heat generated by LED can be quickly transferred to aluminum plate, which depends on the thermal resistance of the thermal insulation material.


    3、 Double sided aluminum PCB aluminum base

    The function of aluminum base is to transfer the heat from thermal insulation material to circuit layer again, and another function is to install.


    Is the thermal conductivity of aluminum substrate better related to the thickness of aluminum plate?

    This is not the case. If you want to improve the thermal conductivity of aluminum substrate, the key is to improve the performance of thermal insulation materials, and reduce the thermal resistance of thermal insulation materials. It is not a simple thing to reduce the thermal resistance of insulating materials, which will be affected by material composition and manufacturing process.


    A pilot hole is a small hole filled or coated with metal on a PCB board, which can be connected with wires on both sides. Because the area of double-sided aluminum substrate PCB is twice as large as that of single-sided aluminum substrate PCB, and double-sided aluminum pcb solves the difficulty of wiring interleaving in single-sided aluminum substrate PCB (it can lead to the other side through holes), so it is more suitable for the circuit with more complex than single-sided aluminum substrate PCB.



    For pcb technical problems, ipcb knowledgeable support team is here to help you with every step. You can also request pcb quotation here. Please contact E-mail sales@ipcb.com

    We will respond very quickly.

    Model : Double sided aluminum PCB

    Material : aluminum base

    Layer : 2Layers

    Color : White/Black

    Finished Thickness : 1.2mm

    Copper Thickness : 1OZ

    Surface Treatment : Lead-free HASL

    Thermal Conductivity : 2.0w/m.k

    Special Process : The 2layer aluminum base needs to be made according to 4layer PCB

    Application : High end LED desk lamp



    For pcb technical problems, ipcb knowledgeable support team is here to help you with every step. You can also request pcb quotation here. Please contact E-mail sales@ipcb.com

    We will respond very quickly.