Impedance Control PCB

Impedance Control PCBs achieve target impedance matching for microstrip lines, striplines and differential pairs by precise control of trace width, dielectric thickness and substrate Dk value. They prevent signal reflection, distortion and attenuation to guarantee stable transmission for high-speed digital and RF microwave circuits, widely used in high-speed mainboards, optical modules, RF antennas and millimeter-wave radars.

Description

Common Substrates
Standard FR-4, high Tg FR-4, halogen-free laminates; high-speed materials including Megtron & Isola; high-frequency special substrates such as Rogers, Taconic, Arlon.

Key Electrical Parameters
Support single-ended impedance, differential impedance and coplanar waveguide impedance design
Standard impedance tolerance: ±5%; ±3% available for premium RF & high-speed projects
Available impedance range: 25Ω ~ 120Ω (typical: 50Ω, 75Ω, 100Ω differential)
Impedance simulation and production verification strictly carried out according to stack-up documents

Manufacturing Capabilities
Layers: 2 ~ 24 layers
Minimum trace width / spacing: 3mil / 3mil
Support hybrid stack-up, high-frequency material mixed with FR-4
Surface finishes: ENIG, Immersion Silver, OSP, HASL etc.
Measured impedance test reports available upon request