PCB fab 2-20 layers

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pcb & pcb assembly manufacture
2.board thickness:ALU 1.6mm
3.led pcb & pcb assembly manufacture

1.Detailed Specification of PCB Manufacturing

1Layer1-30 layer
2MaterialFR-4,CEM-1,CEM-3,Hight TG,FR4 Halogen Free,FR-1,FR-2,Aluminum
3Board thickness0.2mm-7mm
4Max.finished board side500mm*500mm
5Min.drilled hole size0.25mm
6Min.line width0.075mm(3mil)
7Min.line spaceing0.075mm(3mil)
8Surface finish/treatmentHALS/HALS lead free,Chemical tin,Chemical Gold,Immersion gold Inmersion Silver/Gold,Osp,Gold Plating
9Copper thickness0.5-4.0oz
10Solder mask colorgreen/black/white/red/blue/yellow
11Inner packingVacuum packing,Plastic bag
12Outer packingStandard carton packing
13Hole tolerancePTH:±0.076,NTPH:±0.05
15Profiling PunchingRouting,V-CUT,Beveling
16Assembly ServiceProviding OEM service to all sorts of printed circuit board assembly


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Q:How to judge single-sided double-panel multi-layer board
But to use the two sides of the wire, must be between the two sides have the appropriate circuit connection Caixing. The "bridge" between such circuits is called via. The guide hole is a small hole filled with metal on the PCB, which can be connected to both sides of the wire. Because double-sided panels are twice as large as single-sided panels, and because cabling can be staggered (can be routed to the other side), it is more suitable for use on more complex than single-panel circuits.
Q:Three open double panel is what it means
Which does not have copper, so that the hole without copper, but the double side of the pain of the circuit board, called false double panel, looks double panel, the actual and double-sided is different!
Q:What is the most important difference between the PCB board and the second floor?
Four-layer board is in the double-sided board (two-layer board) on the basis of another after the press, when the pressure will be on both sides of the double-sided plate with PP and copper, and then after high temperature and pressure into a multi-layer board.
Q:How to judge the use of double-sided ok ok ah
Purchase should pay attention to the manufacturer's name, site, trademark is complete, because only the complete identification of the plate in order to get the quality assurance should be. No obvious flaws on the surface.
Q:Protel DXP how to draw double
The check box, so that check box appears in the check mark "√" to open the work level. According to what you said you are painting the bottom is not convenient, then you will 'Top' in front of the sign "√" removed on the line. Need to check again.
Q:Pcb double panel if there is a simulated ground and digital to the two to be split?
The last question, that is, when the shop in the copper, set different types of land, respectively, covering the different needs of the above.
Q:How to draw double-panel single-chip? The How is the connection between the board and the board?
Through the hole to connect the two panels of the circuit? This is called two layers of wire, the top and bottom. The two wires can be connected through the through-hole pads (and a patch pad) and vias. It is best to use the through-hole pads, so you can minimize the number of vias.
Q:When drawing pcb diagram how to judge whether the single or double panel
When you are in a wire, you double-click the pop-up dialog box to select the layer where the wire is located
Q:What is the difference between a single panel and a double panel?
The panel is on the most basic PCB, the parts are concentrated on one side, the wires are concentrated on the other side. Because the wires only appear on one side, we call this kind of PCB called single-sided.
Q:What does the double-sided panel mean?
General circuit board double-sided, refers to the double-sided copper, and there are metal holes, that is, double-sided copper, and there are copper inside the hole, for the circuit board double-sided, the hole is particularly important copper,

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