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Types of Printed Circuit Boards

Printed circuit boards are the basic component of many electrical appliances from pager to radios and computer systems to radars, almost every electrical appliance has a printed circuit board in it. With the development in electronics printed circuit boards (PCB) are also getting modified.

PCB is composed of a substrate which has a slight copper or aluminum layer on it. This substrate is known as copper-clad laminate. Visit https://www.dkenterprise.ind.in/copper-clad-laminates.html to get more information about copper Clad Laminates.

There are many types of PCB's which have their own specific usage, manufacturing specifications and material types.

These Types of PCB Include

Single-Layer PCB:

Single layer PCB is coated with a copper clad laminate at a single side of reinforcing material. For coating, copper is commonly used as metal due to high conductivity and heat resistance. After coating with copper clad laminate solder mask and silk layer is applied to mark the different circuits present at the board.

In single-layer PCB's all the components and circuits are soldered at the one side of the board and these types of boards are easy to manufacture.

Double-Layer PCB:

Double layer PCB's have the copper clad laminate coating at both sides of the board. In this type of PCB, holes are drilled at the edges of the board to connect with other circuits. Double-layer PCB's has more complex functions as compared to single-layer PCB's and consume less space.

Multi-Layer PCB's:

These printed circuit boards are the combination of three or more than three PCB's combined with layers of copper clad laminates. In these boards, a specific type of glue is used to ensure their reliability against excess of heat. These boards can vary in size from four-layer to ten to twelve layers. These types of boards are used in satellites, supercomputers, and complex storage devices.

Rigid PCB's:

These are the PCB's manufactured with a rigid material coated with copper clad laminates to prevent twisting of the board. This type of PCB is considered as the most commonly used PCB. These types of PCBs are used mostly in the motherboard of computers. Rigid PCB's can vary in size from single-layer board to multi-layer board consisting of ten to twelve layers.

Flexible PCB's:

These boards are composed of flexible material coated with copper clad laminates and can be stretched. They also vary in size from single layer's PCB's to multi-layer PCB's. They manufacturing cost is high due to complex fabrication of circuits but they could be more beneficial because they can be folded so consume less space and can also be shockproof, waterproof and corrosion resistant.

Aluminum Based PCB's:

In these PCB's aluminum copper clad laminate is used as coating material. This type of PCB has many advantages over other PCB's which includes

Low Cost: Aluminum is the most abundant metal on earth surface so prices for metal are comparatively low.

Environment Friendly: Aluminum can be easily recycled and is nontoxic. Due to use of Aluminum assembly of different components at the board is also easy.

Heat Dissipation: These types of PCB's have good heat dissipation capacity because aluminum transfer heat slowly so heat is dispersed into the open air instead of other parts of board.

DK Enterprise is very trust able suppliers of aluminum based PCB's. You can get more information about aluminum copper clad laminate from DK Enterprise.

Except the above mentioned types of printed circuit boards, there are also some other types which include high frequency PCB's and flex rigid PCB's, but these types are not commonly used.