PCB Micro Vias

PCB Micro Vias, also known as uVias, are tiny holes drilled into printed circuit boards (PCBs) that play a crucial role in enabling high-density interconnect (HDI) designs.

Key Advantages of Microvias

Microvias offer several advantages over traditional through-holes, making them essential for high-performance PCB applications:

  • Increased Wiring Density: Microvias pack a significant number of interconnects into limited space, enabling the creation of more compact and densely populated PCBs. This is particularly important for miniaturizing electronic devices, reducing component count, and improving signal integrity.
  • Reduced Crosstalk and Noise: By reducing the overall circuit board size, microvias minimize the length of signal traces, effectively minimizing the propagation delay and reducing crosstalk and noise. This ensures reliable signal transmission and enhanced system performance.
  • Improved Thermal Management: The smaller size of microvias allows for more efficient thermal dissipation, preventing heat buildup and ensuring the stability of sensitive electronic components. This is particularly critical for applications involving high-power or high-speed signals.

Applications of Microvias

Microvias are widely used in various electronic devices, including:

  • Mobile Devices: Smartphones, tablets, and wearables rely on microvias to accommodate the high density of components and complex signal routing required for their functionality.
  • Networking Equipment: Routers, switches, and other network devices employ microvias to enable high-speed data transmission and robust connectivity.
  • Aerospace and Defense Systems: Microvias are essential for the miniaturization and reliability of critical components in aerospace and defense applications.
  • Medical Devices: Precision PCBs with microvias are utilized in medical implants, diagnostic equipment, and other life-critical devices.

Microvias have revolutionized the design and manufacturing of PCBs, enabling the creation of compact, high-performance electronic assemblies for a wide range of applications. Their ability to enhance signal integrity, reduce crosstalk and noise, and improve thermal management makes them indispensable for modern electronics. As technology continues to advance, the demand for microvias is expected to grow, further driving the miniaturization and performance of electronic devices.

Our Schmoll, Micronic and Lenz drilling machines are capable of drilling 0.15mm holes giving a finished hole diameter of 0.10mm (0.004″) after plating.

Due to the drill length and plating operation micro via holes are usually found on material thickness of 1.60mm or less.

Learn more about annular ring size when deciding on a pad size for your drilling by watching our informative video on our YouTube channel.

Contact us today with your micro via PCB design and send us your Gerber files for a quick and competitive quote.