RF and

Microwave Boards

RF boards operate at significantly higher frequencies, starting from 100 MHz, which are crucial for communication signals in applications ranging from cell phones to military radars. Compared to conventional circuit boards, RF and microwave signals are highly susceptible to noise and require tighter impedance tolerances.

We leverage our extensive experience in manufacturing high-frequency circuit boards to ensure quality products delivered promptly.

Excello Circuits manufactures according to IPC guidelines and holds certifications to meet stringent standards, including:


  • AS9100D
  • ISO 9001:2015
  • ISO 13485:2016
  • RoHS standards
  • ITAR

Technical Specifications


Category Details
Layer Count Single-sided to 24 layers
Hybrid Stack-Ups Hybrid stack-ups with PTFE and non-PTFE
Surface Finishes ENIG, immersion tin, OSP and more
Sequential Lamination Up to 4 cycles
Aspect Ratio for Microvias 0.75:1
Aspect Ratio for Through-Holes 10:1
Minimum Hole Diameters 5 mil for mechanical drill and 3.5 mil for laser drill
Back Drilling Minimum 12-mil hole and +/-1 mil depth tolerance
Tolerances +0.5 mil for laser routing and +/-3 mil for mechanical routing
Gold Plating Selective and full-body hard and soft gold plating up to 120µ
Additional Capabilities Countersink holes; Castellations; Cavities; Edge plating; Buried via / blind via / microvia; Gold fingers

For more detailed technical information and our capabilities, click here to check our Technical Capabilities.


Common Applications

Telecommunications
Military and Defense
Aerospace
Medical Devices