Buried Resistance

Close-up of a printed circuit board with Buried Resistance.
Buried resistance is a thin film electrodeposited on copper NiP metal alloy (resistor conductor material). The alloy is laminated to a dielectric and subtractively processed to produce planar resistors. Due to the thin film nature, it can be buried within layers – without increasing the thickness of the board or occupying surface space (like discrete resistors).


  • Improves line impedance matching.
  • Reduces signal paths & series inductance.
  • Reduces cross talk, noise and EMI.
  • Enhances performance of cost-effective resistor technology in high speed high density circuit layout.
  • Eliminates discrete resistors.
  • Lead free compatible.
  • Stable through a wide frequency range 20+Ghz.


Founded in 1980, Cirexx International, Inc. is an electronic solutions company offering PCB Layout*, Fabrication, Assembly, Testing & Validation of high-reliability Flex, Rigid-Flex, RF/Microwave, HDI and Rigid Circuit Boards. Recognized as a time-technology leader, Cirexx offers a genuine Quick Turn service and provides a "one-stop-shop" and all in-house solution with 100% USA manufacturing. 

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* Cirexx Layout Services consist of Gerber File creation, including modeling and development of PWB mechanical features and signal performance, and the generation of associated engineering drawings for fabrication and/or manufacturing. These services can be certified to IPC or MIL specifications, but are not a part of the company’s ISO/AS Certification. © 2017 Cirexx International Inc. All Rights Reserved.