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July 11, 2025 - San Mateo, California - San Francisco Circuits has published
a comprehensive guide on the
8
most essential types of PCB vias, helping designers, engineers, and procurement
teams navigate the challenges of modern board manufacturing.
This is a guide to the 8 different via types. As electronic devices continue
to shrink in size while increasing in complexity, PCB vias play a critical role
in enabling multi-layer interconnections, high-speed signal integrity, and thermal
performance.
The 8 Main Types of PCB Vias
Each via type serves a specific function depending on the board’s structure,
component density, and electrical requirements:
- Through-Hole Vias – Standard, full-depth vias that connect all PCB layers.
- Blind Vias – Connect outer layers to select inner layers without penetrating
the entire board.
- Buried Vias – Connect internal layers only; invisible from the outer surfaces.
- Microvias – Laser-drilled vias (≤150 µm), ideal for HDI and miniaturized designs.
- Stacked Vias – Vertically aligned blind/microvias for dense multi-layer connections.
- Staggered Vias – Offset vias that reduce stress and improve reliability.
- Tented Vias – Covered with solder mask for protection and isolation.
- Via-in-Pad (VIP) – Placed beneath component pads, critical for BGA and thermal
performance.
Why It Matters: Performance, Reliability & Manufacturability
- Space Optimization – Use blind, buried, or microvias to increase routing density.
- Thermal Management – Leverage thermal vias for heat dissipation beneath power
devices.
San Francisco Circuits - Your Expert in Advanced Via Technology
With expertise in fabricating complex multilayer and HDI PCBs, San Francisco
Circuits offers advanced via capabilities, including:
- Laser-drilled microvias
- Sequential lamination for stacked & buried vias
- Via-in-pad filling and capping
- Thermal via optimization for heat-sensitive components
Our engineering team can help optimize your stack-up and via strategy to meet
stringent performance, size, and reliability requirements.
Read more including the full breakdown on the
Types
of PCB Vias on the San Francisco Circuits website.
About San Francisco Circuits
San Francisco Circuits is a provider of PCB fabrication and assembly, has a dedicated
team specializing in simple and complex PCB fabrication and assembly technologies.
They can produce elaborate and high-quality PCBs in a number of custom and common
layouts. From basic to intricate PCBs–their engineers will meet your PCB fabrication &
assembly needs. The company provides a rare balance between technical expertise
and competitive pricing. And they not only provide high-quality products but also
high-quality customer service at the same time. San Francisco Circuits has been
voted by National Television as the "world's greatest in PCBs" and has demonstrated
experience as a power player in PCB fabrication and assembly.
If you are looking to discuss PCB projects of any size or scope, feel free to
reach out to them via our website (see below).
Contact
Victor Bilandzic
San Francisco Circuits, Inc.
Phone: 1-800-732-5143
Web: www.sfcircuits.com
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