PCB News - What is the specific difference between PCB and FPC

What is the specific difference between PCB and FPC

1. Regarding the PCB, it is the so-called printed circuit board (printed circuit board), which is usually called a rigid board (rigid circuit board). It is a supporting body among electronic components and a very important electronic component. PCB generally uses FR4 glass fiber board as the base material, also called rigid board (rigid circuit board), which cannot be bent or flexed. PCBs are generally used in places where there is no need to bend, such as computer motherboards and mobile phone motherboards.

2. The FPC is actually a kind of PCB, but it is quite different from the traditional printed circuit board. Call it a soft board, and the full name is a flexible circuit board. FPC generally uses PI as the base material, which is a flexible material and can be bent and flexed at will. FPC generally requires repeated flexing and the linking of some small parts, but now it is more than that. At present, smart phones are thinking about bending prevention, which requires the use of FPC, a key technology.

3. In fact, FPC is not only a flexible circuit board, but it is also an important design method of integrated circuit structure. This structure can be combined with other electronic product designs to build a variety of different applications. Therefore, from this From a point of view, FPC and PCB are very different.

4. For the PCB, unless the circuit is made into a three-dimensional form by means of potting glue, the circuit board is generally flat. Therefore, to make full use of the three-dimensional space, FPC is a good solution. In terms of hard boards, the current common space extension solution is to use slots to add interface cards, but the FPC can be made with a similar structure as long as the adapter design is used, and the directional design is also more flexible. Using one piece of connection FPC, two pieces of hard boards can be connected to form a set of parallel circuit systems, and it can also be turned into any angle to adapt to different product shape designs.

5. FPC can of course use terminal connection for line connection, but it is also possible to use a soft and hard board to avoid these connection mechanisms. A single FPC can use layout to configure many hard boards and connect them. This approach reduces connector and terminal interference, which can improve signal quality and product reliability.

iPCB is a high-tech manufacturing enterprise focusing on the development and production of high-precision PCBs. iPCB is happy to be your business partner. Our business goal is to become the most professional prototyping PCB manufacturer in the world. Mainly focus on microwave high frequency PCB, high frequency mixed pressure, ultra-high multi-layer IC testing, from 1+ to 6+ HDI, Anylayer HDI, IC Substrate, IC test board, rigid flexible PCB, ordinary multi-layer FR4 PCB, etc. Products are widely used in industry 4.0, communications, industrial control, digital, power, computers, automobiles, medical, aerospace, instrumentation, Internet of Things and other fields.