- PCB manufacturing equipment
PCB Drilling machine
PCB pattern plating line
PCB solder mask expose machine
PCB pattern expose machine
Strip film etching line
Solder mask screen silk print machine
Solder mask scrubbing line
PCB Flying Probe Test (FPT)
Fully automatic exposure machine
Leadsintec
Why choose us?
Expedited Service
24-hour impedance control PCB prototype expedited service
No order threshold
Without any minimum order restrictions, provide high-performance PCBs in the shortest time
24-hour customer service
we provide 24-hour service and support, you will receive a reply to your question within 2 hours and a quotation within 24 hours.
Free DFM service
Before the official production of the PCB, we will conduct a free DFM review service and support free Allegro, Altium, Protel, PADS, OBD, Gerber and other formats.
Leadsintec
Industries we serve
Leadsintec
Impedance PCB FAQ
Solder mask coatings can reduce impedance by up to several ohms.
Controlled impedance is important for solving signal integrity problems, which are distortion-free propagation of signals.
The impedance of a circuit board trace depends on: trace width and thickness. The height of the dielectric layer between the signal trace and the reference plane. The dielectric constant of the dielectric material used in the circuit board.
Impedance is the combination of capacitance and inductance when a circuit operates at high frequencies.
