Rigid-flex printed circuit boards are rigid printed circuit boards and flexible printed circuit boards.
The rigid-flex printed circuit boards are formed by bonding a copper foil to an insulating substrate and manufacturing a conductor pattern and a component mounting hole by means of printing, etching, drilling, etc. according to a predetermined design to form an electrical interconnection. The rigid-flex printed circuit boards play an important role in the electrical, thermal, mechanical strength and reliability of the circuit. The rigid printed board contained in the rigid-flex printed circuit boards has a certain mechanical strength, and the components used for it have a certain bending resistance and are flattened during use. Rough printed boards are used in general electronic equipment.
Another flexible printed circuit board included in rigid-flex printed circuit boards are made of soft layered plastic or other soft insulating material. The parts it makes can be bent and stretched and can be bent according to installation requirements when in use.
Therefore, flexible printed circuit boards are generally used on special occasions, such as some digital multimeters display screens are rotatable, and flexible printed circuit boards are often used inside. Rigid-flex printed circuit boards are used in a wide range of applications. rigid-flex printed circuit boards are used in almost all electronic products.