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Introduction:
Power Supply PCB means that the PCB is applied to the power supply produc, such as power bank, switching power supply and so on. It is usually with heavy copper thickness (2oz, 3oz or heavier).
Working Layer:
The circuit board includes many types of working layers, such as the signal layer, protection layer, Silkscreen layer and inner layer, etc. The functions of various layers are briefly introduced as follows:
1. Signal layer: mainly used to place components or wiring.
2. Protection layer: mainly used to ensure that the circuit board does not need to be tin-coated, to ensure the reliability of the circuit board operation.
3. Silkscreen layer: mainly used in the printed circuit board components on the serial number, production number and company name.
4. Inner layer: mainly used as signal wiring layer
5. Other layers: mainly includes four types of layers as following:
Drill Guide (Drill orifice layer) : used primarily for Drill positions on printed circuit boards.
Keep-out Layer: mainly used to draw the electrical frame of the circuit board.
Product Details:
Payment & Shipping Terms:
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| Layer Count: | 2 ` 30 Layers | Max Board Size: | 600 Mm X 1200 Mm |
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| Base Material For PCB: | FR4, CEM-1, TACONIC, Aluminium, High Tg Material, High Frequence ROGERS ,TEFLON, ARLON, Halogen-free Material | Rang Of Finish Baords Thickness: | 0.21-7.0mm |
| Minimum Line Width: | 3mil (0.075mm) | Minimum Line Space: | 3mil (0.075mm) |
| Minimum Hole Diameter: | 0.10 Mm | Finishing Treatment: | HASL (Tin-Lead Free), ENIG(Immersion Gold), Immersion Silver , Gold Plating (Flash Gold), OSP, Etc. |
| Thickness Of Copper: | 0.5-14oz (18-490um) | E-Testing: | 100% E-Testing (High Voltage Testing); Flying Probe Testing |
| High Light: | printed circuit board pcb,power supply circuit board |
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3OZ copper thickness PCB board Heavy Copper PCB PCB Assembly Service
1. Features of Camera PCBA
2. Camera PCBA Technical capability
| SMT | Position accuracy:20 um |
| Components size:0.4×0.2mm(01005) —130×79mm,Flip-CHIP,QFP,BGA,POP | |
| Max. component height::25mm | |
| Max. PCB size:680×500mm | |
| Min. PCB size:no limited | |
| PCB thickness:0.3 to 6mm | |
| PCB weight:3KG | |
| Wave-Solder | Max. PCB width:450mm |
| Min. PCB width: no limited | |
| Component height:Top 120mm/Bot 15mm | |
| Sweat-Solder | Metal type :part, whole, inlay, sidestep |
| Metal material:Copper , Aluminum | |
| Surface Finish:plating Au, plating sliver , plating Sn | |
| Air bladder rate:less than20% | |
| Press-fit | Press range:0-50KN |
| Max. PCB size:800X600mm | |
| Testing | ICT,Probe flying,burn-in,function test,temperature cycling |
Following are the key steps of Heavy Copper PCB Assembly Service:
Materials and Components:
High Copper Content PCB (2oz, 4oz or 6oz copper thickness)
Heavy Electronic Components (e.g. Power Transistors, High Power Resistors, Heat Sinks)
High Temperature Solder (e.g. High Melting Point Lead-Free Solder)
High Quality Solder Paste
PCB Assembly Process:
PCB Preparation:
Clean PCB surface thoroughly to remove any contaminants.
Apply solder mask and silk screen as per component placement requirements.
Drill and through holes for component leads and mounting.
Component Placement:
Carefully place components on PCB ensuring proper orientation and alignment.
Secure component leads to PCB pads using high temperature solder paste.
Reflow Soldering:
Place assembled PCB in reflow oven or use hot air rework station.
Heat PCB to appropriate reflow temperature (usually 230°C to 260°C) to melt solder paste.
Ensure proper solder wetting and joint formation for all component connections.
Inspection and Testing:
Visually inspect the PCB for any solder bridges, cold joints, or missing components.
Perform electrical tests to verify the functionality of the circuit, such as continuity, resistance, and voltage measurements.
Perform any necessary functional tests to ensure the circuit meets design specifications.
Thermal Management:
Identify high-power components that require additional cooling.
Install heat sinks or other thermal management solutions as needed to effectively dissipate heat.
Ensure proper thermal interface between components and heat sink.
Conformal Coating (Optional):
Apply conformal coatings, such as acrylic or polyurethane, to protect the PCB and components from environmental factors such as moisture, dust, and corrosion.
Final Assembly and Packaging:
Secure the PCB in a suitable housing or enclosure, if required.
Pack the assembled PCB for safe shipping and delivery.
Key Considerations for Heavy Copper PCB Assembly:
Ensure the PCB material and copper thickness are appropriate for the power requirements of the application.
Select components with appropriate power ratings and heat dissipation capabilities.
Use high-temperature solder and solder paste to withstand higher operating temperatures.
Implement proper thermal management solutions to prevent components from overheating.
2. Camera PCBA Pictures
Contact Person: Mrs. Helen Jiang
Tel: 86-18118756023
Fax: 86-755-85258059
