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Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing

    Buy cheap Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing from wholesalers
     
    Buy cheap Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing from wholesalers
    • Buy cheap Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing from wholesalers
    • Buy cheap Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing from wholesalers
    • Buy cheap Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing from wholesalers
    • Buy cheap Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing from wholesalers

    Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing

    Ask Lasest Price
    Brand Name : YDY
    Model Number : S-001
    Certification : ISO13485, IATF16949, ISO9001
    Price : Negotiatable
    Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
    Supply Ability : 100000pcs/month
    Delivery Time : 1-10working days
    • Product Details
    • Company Profile

    Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing

    Smd Pcb Assembly House



    PCB Specification


    Product NamePCB With SMT Assembly Service
    TypeRigid
    MaterialFR4, CEM1, CEM3, High Frequency Board,
    Layer1,2,4,6...20Layer
    ShapeRectangular, Round, Slots, Cutouts, Complex, Irregular
    CuttingShear, V-score, Tab-routed
    Board Thickness0.2-4mm, regular 1.6mm
    Copper Thickness0.5-4oz, regular 1oz
    Solder MaskGreen, Red, Blue, Yellow, etc.
    Silk ScreenWhite, Black, etc.
    Silk Screen Min Line Width0.006" or 0.15mm
    Min Trace/Gap0.1mm or 4mils
    Min Drill Hole Diameter0.01",0.25mm or 10mils
    Surface FinishHASL, ENIG, OSP, etc.

    Our SMT service:

    Fast delivery, 4 million patches/day,
    Can be sprayed with three anti-paint,double-sided, FPC
    Minimum 01005 and 0.2mmBGA
    Maximum 1200mm*400mm


    Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing

    Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing


    Process of SMT manufacturing

    1. Material preparation and examination
    Prepare the SMC and PCB and exam if there’s any flaws. The PCB normally has flat, usually tin-lead, silver, or gold plated copper pads without holes, called solder pads.

    2. Stencil preparation
    Stencil is used to provide fixed position for solder paste printing. It’s produced according to the designed positions of solder pads on PCB.

    3. Solder paste printing
    Solder paste, usually a mixture of flux and tin, is used to connect the SMC and solder pads on PCB. It’s applied to PCB with the stencil using a squeegee on a angle range from 45°-60°.

    4. SMC placement
    The printed PCB then proceed to the pick-and-place machines, where they are carried on a conveyor belt and the electronic components are placed on them.

    5. Reflow soldering
    Soldering oven: after SMC was placed, the boards are conveyed into the reflow soldering oven.
    Pre-heat zone: the first zone in oven is a pre-heat zone, where the temperature of the board and all the components is raised simultaneously and gradually. Temperature ramp up rate in this section is 1.0℃-2.0℃ per second until it reaches 140℃-160℃.
    Soak zone: the boards will be kept in this zone on temperature from 140℃-160℃ for 60-90 seconds.
    Reflow zone: the boards then enter a zone where the temperature ramp up at 1.0℃-2.0℃ per second to the peak of 210℃-230℃ to melt the tin in the solder paste, bonding the component leads to the pads on the PCB. The surface tension of the molten solder helps keep the components in place.
    Cooling zone: a section to ensure solder freezes at exit of heating zone to avoid joint defect.
    If the circuit board is double-sided then this printing, placement, reflow process may be repeated using either solder paste or glue to hold the components in place.

    6. Clean and inspection
    Clean the boards after soldering, and check if there’s any flaws. Rework or repair the defects and store the products. Common equipment related to SMT include magnifying lens, AOI (Automated Optical Inspection), flying probe tester, X-ray machine, etc.


    Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing


    PCB Boards are mainly used in the Iconsumer electronics board,Industrial Control, Medical Treatment, Lighting, Automobile area and ect.

    Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing


    Quality Small Smd Pcb Assembly House Printed Circuit Board Prototype Manufacturing for sale
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