The development of society is fast. People are paying more and more attention to health, and the equipment in the medical industry puts forward higher requirements on the performance of pcb materials. What are the technical requirements for reliability, high frequency, high speed, and high conductivity of pcb in medical treatment?

The medical PCB board has become one of the most complex and challenging in the industry. Many people say that medical PCB and ordinary PCB are just a circuit board. Is there any difference?

In summary, there are the following aspects:

1) "Safety" and "Reliability": These are the core issues of PCB boards in the medical industry. Life support products or high-end products refer to IPC-3 level standards, and non-life support or low-end products refer to IPC-2. The large-scale medical terminal establishes its independent standard enterprise standard, strictly controls the reliability of the product. So this point is very important.

2) Long service life: general medical electronic products have a warranty time of more than 5 years, large medical equipment requires at least 10 years, and the product has a long service life. The difference between medical PCB and ordinary PCB is still there.

3) Large level span: from consumer medical products that meet conventional requirements, to mid-to-high-end medical products that meet high reliability and high stability requirements, to small portable products that meet high-density, high-integration, and smart Versatile and multifunctional wearable medical products.

4) Product conservative: The application of new medical technologies and new products to the market is slow, and the verification and testing of new products is repeated, which often requires comprehensive evaluation.

5) Traceability: Products require strict process records and product traceability. Some large-scale medical terminals require the traceability of PCB processing records for 10 years.

6) The process and fire protection requirements of medical pcb boards are different. The ordinary pcb process has different methods for spraying tin and cleaning the board. On the premise of taking process measures and ensuring quality and safety, it can be used for repairs as appropriate.

7) Generally, the demand for medical pcb is very small, the process requirements are many, and it is difficult. Such as: HDI, back drilling, multiple pressing, mixed pressure, high precision, special impedance, thick copper, thick gold, embedded copper block, etc. This makes the price of medical PCBs much higher than ordinary PCBs, which is also different from ordinary PCBs.

Among all medical PCB boards, FR-4 is the most widely used. For medical PCB design, there will be differences in the choice of FR-4 board based on the positioning of its own products and the control of the price of raw materials. For large-scale hospital institutions, reliable pcb boards should be selected.