In terms of technicality and design, multi layer PCBs provide numerous advantages. Here are a few main benefits of these boards:
Increases Functionality & Capabilities – By laminating together multiple layers of boards, you can efficiently increase the functionality and capabilities of the printed circuit board. With more layers, you can fit more circuitry and wiring into the board.
Can be made Rigid or Flexible – These multi-layer printed circuit boards can be made in either rigid or flexible configurations, depending on your requirements. However, the more layers you add to the board, the less flexible it will become.
Generally Smaller Sizes – As you are combining layers on top of each other, this can save space. Multiple layers allow you to have high capacities with smaller footprints which may be beneficial for smaller devices.
Lightweight – Due to the layered configuration of these printed circuit boards, it eliminates the need for connectors for separate PCBs. This allows the manufacturing process to be simplified which not only saves space but also reduces the overall weight of the board.
Why multilayer PCB is used widely?
The multilayer PCB is made up by two or more PCBs which are stacked together with reliable predefined mutual connection between them. There are at least three conductive layers in one multilayer PCB with two layers outside and the one layer synthesized in the insulation board. Due to the complex manufacturing process and lower production, the cost of multilayer PCB is relatively higher.
The out coming of multilayer PCB results from requirements of the development of electronic technology, such as high speed, multi-function, high-capacity, small size. On one hand, as the electronic devices is becoming smaller and lighter, single-sided PCB and double-sided printed pcb cannot match increasing assembly density due to the limit of available space. On the other hand, , there are many problems in the PCB layout such as noise, stray capacitance, crosstalk and so on. Therefore, the design of PCB must be committed to minimizing the length of the signal line and avoiding the parallel routes.
What are the applications of multilayer PCB in our daily life?
This all depends on your application. If you need a product to be lesser weight and smaller with more electronic circuitry then go for multilayer or if you want a product where size is not a matter than go for single sided PCB.
Consumer Electronics:
The term “Consumer Electronics” is a wide term that includes many electronic devices that comes under the umbrella of commonly used devices that are directly relevant to common users like you and me. The consumer electronics include, smartphones, smart watches, calculators, TV remote control, mp3 music player, toys, kitchen appliances, washing machines, electric kettle, e-cigarettes, LED bulbs and energy savers etc.
Computers and Devices:
Today our world is highly dependent on computers and automation. Multilayer PCBs are commonly found in computers and associated products like motherboards, graphics cards, EEPROMs, Power supplies, keyboard, computer mouse, ADCs, GPUs, Image processing circuits etc.
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