January 5th, 2024

Benefits of Laser Drilling in PCB Assembly Services


As a majority of people know, in order to establish connections through different layers of printed circuit boards, it’s necessary to drill holes through them. One of the most effective ways to accomplish this with remarkable accuracy is utilizing laser drilling.

No matter the size of the holes that are necessary, laser drilling ensures that they are created with accuracy and efficiency. Then, traces, pads, and copper polygons can be connected to the top layer, bottom layer, or any layer in between. Here are the many benefits of laser drilling as they correlate to PCB assembly services.

Vibration-Free Drilling

One of the more prominent methods of drilling – mechanical drilling – requires physical contact with the material. As such, it may induce damage on the material due to vibration. On the other hand, laser drilling is a non-contact process and therefore does not pose a risk of damage due to vibration.

Unparalleled and Precise Accuracy

Laser drilling enables PCB assembly manufacturers to drill holes through circuit boards using beams that are precisely controlled and highly accurate. This is due to the fact that the beam intensity, heat output, and duration can all be controlled at an exact level. Laser drilling reduces errors, which saves you time and budget.

Achieve High Aspect Ratios

Thanks to the precise capabilities of laser drilling, PCB manufacturing companies can produce circuit boards with high aspect ratios. The aspect ratio is the ratio between the depth of the hole and the diameter of the hole. As previously stated, lasers are capable of drilling remarkably narrow holes with great accuracy, which yields a high aspect ratio.

Key Considerations

Before using laser drilling for circuit card assembly, it is important to remember that different materials absorb energy at different rates. Therefore, the different elements of a stack-up should be as homogenous as possible. This will promote an equal and accurate drill through the layers of the PCB.

Depending on the needs of your project, laser drilling might be the best choice for PCB assembly services. Contact us to learn more about this and other valuable circuit card assembly services. We will work with you to find the best solutions for your unique needs.

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