Multi layered PCBs. Ingenious… on so many levels

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A printed circuit board (PCB) is the nerve centre of any electronic device, the pulsing downtown heart of this electronic city, with information running down its conductive pathways, connecting the various component hubs of the board.  It is almost impossible to conceive of any electronic device in the 21stcentury that doesn’t have a printed circuit board at its heart; and like any modern city, a device is defined by the energy and vitality of its heart.

So what is a multi layered PCB and why may it be of interest in your manufacturing?  The multilayer printed circuit board is really the result of innovations and developments in electronics design itself.  Whilst the drivers of speed, function and capacity have risen exponentially, they have been matched all the way by a desire for decreasing size and weight of electronic devices.  Single circuit boards simply can’t handle the complexity that this entails, without crowding the board and causing noise and disturbance – to continue our city analogy, traffic jams and noise pollution.  PCB designers have had to look to more ingenious answers to this problem, and their solution has been to build up, and up, layering circuit boards one upon the other to allow more space for information to pass – a sci-fi future city of multiple levels.

Multilayer printed circuit board composition

The multilayer printed circuit board is therefore made up of at least two circuit boards stacked together to create a minimum of three conductive layers in the one board, with two layers on the outside and the one layer within the insulation board.  Keeping the boards close minimises the connection distance and enables faster operation, whilst stacking in this way keeps the scale and weight of the PCB down to a minimum, aiding the final dimensions of the device itself.

In the 21st Century, many electronic products necessitate a multi layered PCB solution.  By using our cutting edge manufacturing equipment and bespoke techniques, Hi-5 can now manufacture PCBs up to 18 levels of between 0.3–5.2mm thickness – enough to handle the very worst of rush hour traffic…



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