Global Success Circuits Co.,Ltd
Global Success Circuits Co.,Ltd World’s Professional PCB Manufacturer
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We offer all of what you need for Printed Circuit Boards
| Layer count | Production:1~14layers / Prototypes:16 Layers |
| Material | FR-4,High TG FR4,Halogen free,Ceramic filler,PTFE(Teflon), F4B,FPC Polymide,mix stack, (Arlon,Rogers,Taconic,,Nelco,Isola,Alu board,Copper board) |
| Trace/space | 3/3 mil (0.076/0.076mm) |
| Copper weight | 1-4oz |
| Hole | Mechanical 6 mil (0.15mm) / Laser 3 mil (0.075mm) |
| Dimension | 1230mm X 560mm (under 450*500 is preferred) |
| Finishing | HASL ,HASL Lead Free, Immersion Gold, ENEPIG,Immersion Tin , OSP (Entek), HAL+Gold fingers,,Immersion Sivler |
| Special | Burreid vias,blind vias,Countersunk holes,impedence control , burn-in board |
Control impedance PCB
Many customers asked us what information we need for impedence control PCB.Here,there are two types for PCB manufacturer,a is single impedance, just one trace , two holes. and b is differential impedance,it always go with 1 pair (two trace with same width and space). For single impedance,you just tell us the trace width one which layer and what value you require .For differential impedance,trace width/space,layers and value. Our experience engineers will calculate following your instruction with Polar software.We may change trace width/space or stackup ,but please do not worry, if any changes,we will send you to approve before proceeding. Generally,the tolerance is 10%,and more accurate is 8% .All impedance boards ,we will test here and report.
Here is an example of what information we need to do impedance control.
| TYPE | VALUE | Layer | width/space |
|---|---|---|---|
| Single | 50 ohm +/-10% | L1,L6 | 0.15mm |
| Single | 50 ohm +/-10% | L2,L3,L4,L5 | 0.13mm |
| Differential | 90 ohm +/-10% | L1,L6 | 0.13/0.13mm |
| Differential | 100 ohm +/-10% | L1,l6 | 0.13mm/0.2mm |
(1)10 Layer HDI board,0.5mm pitch BGA. 4/4mil,0.15mm vias, (2)8 layer HDI board ,impedance control,
Tablet PC mother board,Impedance control 4/4mil 0.15mm vias,Telecom board
(3)An example of 6 layer impedance control coupon (4)How we calculate the impedance value with our software before proceeding.