PCBBox is experienced at advanced impedance controlled PCB manufacturing. We can control impedance tolerance in the +/-5%, generally used for electronic equipment with high frequency and speed transmission, such as computers and communication devices.

Manufacturing capabilities of impedance controlled PCBs:

Type: impedance controlled PCBMin. Trace: 0.05mmCertificates: RoHS, ISO, UL, TS16949
Base Material: FR-4Min. Space: 0.05mmPCB Size: customized, 350mm * 450mm
Copper Thickness: 0.5oz, 1oz, 2ozSurface Finish: HASL, ENIG, OSPPacking: vacuum packing
Board Thickness: 0.8-4.0mmSolder Mask: green, black, blueDelievery Time: 5-7 days
Min. Hole Size: 0.2mm

Impedance is defined as a good laminated structure that can control characteristics of printed circuit board impedance and its circuits are formed easily to controlled and predictable transmission structures. According to the theory of signal transmission, the signal is a function of time and distance variables, so the signal on every part of circuit is likely to change. The ratio of voltage change and current change is characteristic impedance of transmission circuit. impedance is an important factor for PCB design, particularly for high frequency circuits. The impacts of circuit impedance include width and thickness of copper, dielectric constant, medium thickness, pad thickness etc.