The complete PCB we expect is usually a regular rectangular shape. Although most designs are indeed rectangular, many designs require irregular shapes, and this shape is often not easy to design. This article introduces how to design irregular shapes of PCB.

Nowadays, the size of PCB is constantly narrowing, and the functions in the circuit board are more and more. In addition to the improvement of the clock speed, the design has become more complicated. So, let's take a look at how to deal with more complicated circuit boards.

The shape of the simple PCI circuit board can be easily created in most EDA Layout tools. However, when the shape of the circuit board needs to adapt to a highly limited complex shell, it is not so easy for PCB designers, because the functions in these tools are different from the function of the mechanical CAD system. The complex circuit board is mainly used for explosion -proof shells, so it is limited by many mechanical restrictions.

It may take a long time to rebuild this information in the EDA tool and it is not effective. Because mechanical engineers are likely to have created the shells, circuit board shape, installation hole position and height restrictions required by PCB designers.

Because there are arc and radius in the circuit board, even if the shape of the circuit board is not complicated, the reconstruction time may be longer than the expected time.

However, from today's consumer electronics products, you will be surprised to find that many projects try to add all the functions to a small package, and this package is not always rectangular. You should think of smartphones and tablets first, but there are actually many similar examples.

If you return the car rented, you may see the waiter to read the car information with a handheld scanner, and then conduct wireless communication with the office. The device also connects thermist printer for instant receipt printing. In fact, all these devices use rigid/flexible circuit boards. The traditional PCB circuit board is connected with flexible printing circuits in order to be able to fold into small spaces.