There are various circuit boards in modern mobile phones, and the production of these circuit boards can be divided into soft boards and hard boards. So, which type of circuit board is better?
1. Soft board: It is made of polyimide material, with good flexibility, and can realize some bending degrees of freedom that hard boards cannot reach. It is also lighter, smaller, making the phone thinner. In addition, the circuit of a soft board is simpler than that of a hard board, which can reduce design difficulty and production costs. In terms of hardware performance and electronic component size, the soft board can meet the needs of players. However, the drawbacks of soft boards are also obvious: they have a short service life, are easily affected by moisture and heat, and are easily damaged by components that are plugged in or removed. In addition, the softness of the soft board limits its transmission speed and upper limit of transmission frequency. For mobile phones with high performance and high-speed transmission requirements, soft boards may not be suitable. 2. Hard board: It is also made of polyimide material, but the hard board is more strict than the soft board, which is difficult to make, and has high precision and anti-interference. Hard boards are not easily damaged due to long-term use or disassembly, and have a long lifespan. In addition, it is a very effective heat dissipation method that can better protect the internal components of the phone, making the device more durable. At the same time, the signal transmission speed and frequency limit of the hard board are also higher. However, the disadvantage of a hard board is that it is not very suitable for mobile phones that require bending degrees of freedom, as once the hard board is bent, it may break, causing the entire phone to malfunction.
