https://cdn.pcbdirectory.com/news/Untitled_design_23__639161539901880851.webp712370
Cirexx International, a manufacturer specializing in flexible and rigid-flex printed circuit boards, offering design, fabrication, and assembly services, provides buried resistance PCB manufacturing for applications that require embedded resistors within PCB layers. The technology uses a thin-film resistor material electrodeposited on a copper nickel phosphorus (NiP) alloy, allowing resistive elements to be integrated directly into the board structure.
Buried resistors are embedded within PCB layers, conserving surface space while maintaining board thickness. The manufacturing process laminates resistor conductor material to a dielectric and uses subtractive processing to create planar resistors within the board. According to Cirexx, this approach can improve line impedance matching, reduce noise and cross-talk, and enhance overall stability and reliability. The company notes that maintaining tight tolerances during processing and lamination can be a key manufacturing challenge, and resistor values may change during the lamination process.
Cirexx also outlines the differences between buried resistance technology and traditional discrete resistors. While discrete resistors do not face the same integration constraints, buried resistors can free board space for additional components and, depending on the application, may offer a more cost-effective solution while supporting enhanced performance.
The company manufactures buried resistance PCBs for a range of industries and applications, including telecommunications, aerospace, RF and microwave systems, military and defense, medical devices, automotive, consumer electronics, industrial electronics, and energy systems. Cirexx states that the technology supports space optimization, reduced noise, and improved electronic performance across these sectors.
For buried resistor PCB projects, Cirexx reports typical lead times ranging from 10 to 20 days. The company has more than four decades of experience working with buried resistance technology and has supplied PCB solutions for technology companies and industrial customers worldwide.
In addition to manufacturing, Cirexx provides engineering support during project development, including recommendations on PCB type selection, materials, stack-ups, and design-for-manufacturability considerations. The company also offers PCB layout, manufacturing, and assembly services to support custom electronic design requirements.
Click here to learn more about the buried resistance PCB manufacturing.
