On the most basic PCB, the parts are concentrated on one side and the wires are concentrated on the other side. Because the wire only appears on one side, we call this PCB a single-sided board. Round LED PCB Boards are single-sided boards. Because single-sided boards have many strict restrictions on the design line (because there is only one side, the wiring can not be crossed * and must be around a separate path), so only the early circuit, the use of such boards.
PCB assembly process
Drilling-----Exposure-----Plating-----Etaching & Stripping-----Punching-----Electrical Testing-----SMT-----Wave Soldering-----Assembling-----ICT-----Function Testing-----Temperature & Humidity Testing
|Number of Layer||1,2,4 or 6,upto 18 layer|
|Order Quantity||1 to 50,000|
|Board Type||Rigid, Flexible, Rigid-flexible|
|Board Material||FR-4 glass epoxy, FR-4 high Tg, Rohs compliant,Aluminum,Rogers,etc.|
|Board Thickness||0.2-4.0mm, Flex 0.01-0.25mm|
|Copper Weight||1.0, 1.5, 2.0 oz|
|Solder Mask||Double-sided green LPI,Also support Red,White,Yellow,Blue,Black|
|Silk Screen||Double-sided or single-sided in white,yellow,black,or negative|
|Silk Screen Min Line Width||0.006'' or 0.15mm|
|Max Board Dimensions||20 inch*20inch or 500mm*500mm|
|Min Trace/Gap||0.10mm, or 4mils|
|Min Drill Hole Diameter||0.01'',0.25mm, or 10mils|
|Surface Finish||HASL,Nickle,Immersion Gold,Immersion Tin,Immersion Silver,OSP,etc.|
|Board Thickness Tolerance||±10%|
|Copper Weight Tolerance||± 0.25 oz|
|Minimal Slot Width||0.12'', 3.0mm, or 120mils|
|V-Score Depth||20-25% of board thickness|
|Design File Formate||Gerber RS-274,274D,Eagle and AutoCAD's DXF,DWG|
Applications of Round LED Boards
1. Computers and relevant products: Movable power board, U Disk, network interface, panel computer, cameral, wire-less mouse.
2. Home appliance: smart projector/digital cameral, high-frequency board. Recorder and repeater board, auto audio equipment main board and control board.
3. Wire-less communication: mobile board,. GPS/ direction record board, wireless telephone main board, intercom main board.
4. LED Lighting: LED drive power, LED light panel, LED light belt.
1) Professional Surface-mounting and Through-hole soldering Technology
2) Various sizes like 1206,0805,0603,0402 components SMT technology
3) ICT(In Circuit Test),FCT(Functional Circuit Test) technology.
4) PCB Assembly With UL,CE,FCC,Rohs Approval
5) Nitrogen gas reflow soldering technology for SMT.
6) High Standard SMT&Solder Assembly Line
7) High density interconnected board placement technology capacity.