1) Industrial Automation and Electronics
We can use a rigid board for supporting hardcore industrial applications. So, we can use a multilayer PCB to create buried connections and providing controlled impedance. Additionally, we can use them in applications that involve high frequency, high power, and high voltage. Some prominent examples include automation in robotic arms, conveyor belts, pressure controllers, gas tank monitors, and temperature controllers.
2) Medical Applications
We can also use them in a wide range of medical applications. However, they have restricted use in this sector as we only use them in large equipment. Some prominent examples include EMG (electromyography) equipment, tomography machines, and MRI systems.
3) Aerospace Applications
The aerospace sector is known for its extreme environment and conditions. Some of the major challenges include high temperature, friction, and high pressure. So, in this case, rigid circuit boards are very beneficial. This is because we can design them with premium substrates and superior laminates. Some prominent examples include cockpit equipment, temperature sensors, control mechanisms, routing equipment, dashboard instrumentation, black box equipment, etc.
4) Automotive Applications
We can see an intensive use of rigid circuit boards in automobiles. We have to deal with extreme conditions when it comes to vehicles. So, we tend to rely on rigid circuit boards because they have lamination. This lamination can protect them from the high amount of heat generated by the engine. Additionally, we can also use a rigid printed circuit board in the dashboard of the vehicle and as an AC/DC power converter. They are also very useful as transmission units, junction boxes, electronic computer units, and power distributors.