Understand the industry standards and technical specifications of high-precision PCB

The application scope of high-precision printed circuit boards ( PCBs ) is becoming increasingly widespread, from consumer electronics to aerospace. To gain a foothold in this huge market, understanding its industry standards and technical specifications is an indispensable first step.

What exactly is high-precision PCB? 🤔

High-precision PCB refers to a circuit board with higher wire density, smaller line spacing and aperture. This kind of circuit board requires highly precise manufacturing equipment and technology to ensure its performance and stability.

Industry standard for high-precision PCB

According to authoritative standards such as IPC-6012 and IPC-2221, the production requirements of high-precision PCBs include but are not limited to the following:

• Number of layers: usually multiple layers (≥4 layers) to increase circuit functionality and electrical performance.
• Line spacing: The line spacing in high-precision PCBs is usually less than 0.1mm.
• Aperture: The aperture of micro-drilling technology (Microvia) can be as small as 0.1mm.

Technical specifications for high-precision PCB

To ensure the accuracy and stability of high-precision PCBs, the technical specifications also need to be meticulous:

• Material selection: FR-4 material is widely used due to its high temperature stability and mechanical strength, but for higher precision applications, ceramic or high-frequency materials may also be selected.
• Manufacturing process: Laser drilling and electroplating processes are essential.
• Testing method: Use AOI (Automated Optical Inspection) and X-ray inspection for quality control.

Why is it so important?

Complying with the industry standards and technical specifications of high-precision PCB can not only improve product quality, but also significantly reduce the rework rate, thus gaining an advantage in the fierce market competition.

Summarize

Understanding and complying with the industry standards and technical specifications for high-precision PCBs is the "homework" that every circuit board manufacturer must do. Whether you are an engineer or a business decision maker, mastering this knowledge will guide you in the complex world of circuit boards. If you have more questions about high-precision PCBs, welcome to consult!