A PCB half-hole board, also known as a castellated holes PCB, features plated through-holes that are cut along the edge of the PCB. This design allows the board to be soldered directly onto another PCB, similar to a surface-mount device. Such boards are widely used in modules like Wi-Fi, Bluetooth, and IoT add-ons.

Key Considerations in Half-Hole PCB Manufacturing:

Hole Size & Tolerance – Finished hole diameters usually 0.4–0.6 mm with tight tolerance (±0.05 mm).

Copper Plating Quality – Uniform plating is essential to avoid weak solder joints.

Milling & Drilling Alignment – Precise alignment ensures clean, complete half-holes.

Surface Finish – ENIG or HASL improves solderability and reliability.

Design Guidelines – Adequate spacing between holes and board edges prevents cracks.

Mechanical Strength – Balanced design avoids weakened PCB edges during depanelization.

Why Choose HUANYU PCB for Half-Hole Boards?

20+ years manufacturing expertise in high-precision PCB production.

Advanced drilling & milling equipment ensuring perfect hole accuracy.

High-quality plating & surface finish for reliable soldering.

Flexible order support – from prototypes to mass production.

Fast global delivery with consistent quality assurance.

 At HUANYU PCB, we deliver half-hole PCBs with 99% first-pass yield, making your modules easier to assemble and more reliable in the field.

Contact us at jiang@huanyupcb.com
Visit: www.huanyupcb.com
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