PCB factory china talked there are several types of PCB available for the circuit.  Out of these types of PCB, we have to choose the appropriate type of PCB according to our application.

PCBfactoryChina:Types of PCB

Single-layer PCB

Double-layer PCB

Multi-layer PCB

Flexible PCB

Aluminium backed PCB

Flex-rigid PCB

1) Single Layer PCB:

A single layer PCB is also known as single sided PCB.  This type of PCB is simple and most used PCB because these PCBs are easy to design and manufacture.  One side of this PCB is coated with a layer of any conducting material.  Generally, copper is used as conducting material for PCB, because copper has very good conducting characteristic.  A layer of solder mask is used to protect PCB against oxidation followed by silk screen to mark out all of the components on the PCB. 

In this type of PCB, only one side of the PCB is used to connect different types of electrical or electronics components like resistor, capacitor, inductor, etc.  These components are soldered. 

These PCBs are used in low cost and bulk manufacturing application like calculators, radio, printers and the solid-state drive.

Single Layer PCB

2) Double Layer PCB:

Double layer PCB is also known as double sided PCB.  As name suggests, in this type of PCB, a thin layer of conducting material, like copper is applied to both top and bottom sides of the board.  In PCB, on different layer of board, consist via, which has two pads in corresponding position on different layers.  These are electrically connected by a hole through the board, which is shown in figure-2b.  More flexible, relatively lower cost, and most important advantage of this type of PCB board is its reduced size which makes circuit compact. 

This type of PCB is mostly used in industrial controls, converter, UPS system, HVAC application, Phone, Amplifier and Power monitoring systems.

Double Layer PCB

3) Multi-Layer PCB:

Multilayer PCB has more than two layers.  It means that, this type of PCB has at least three conductive layers of copper.  For securing the board glue is sandwiched between the layer of insulation which ensures that the excess heat will not damage any component of circuit.  This type PCB designing is very complex and used in very complicated and large electrical task in very low space and compact circuit. 

This type of PCB is used in large application like GPS technology, satellite system, medical equipment, file server and data storage.

Multi-Layer PCB

4) Flexible PCB:

Flexible PCB is also known as FPC.  This type of PCB used flexible plastic material like polymide, PEEK (Polyether ether ketone) or transparent conductive polyester film.  The circuit board is generally place in folded or twisted.  This is very complex type of PCB and it also contains different range of layers like single sided flex circuit, double sided flex circuit and multisided flex circuit. 

Flex circuit is used in organic light emitting diode, LCD fabrication, flex solar cell, automotive industries, cellular telephones, camera and complex electronics devices like laptops.

Flexible PCB

5) Rigid PCB:

Rigid PCBs are made out of solid material which don’t allow PCB from twisting.  Same as flex PCB, Rigid PCB also have different layer configuration like single layer, double layer and multi-layer Rigid PCB.  Shape of this PCB is not change after installation.  This PCB cannot be bent according to shape of base that’s why this PCB is known as RIGID PCB.  Lifespan of this type of PCB is very high, so this is used in many parts of computer like RAM, GPU and CPU. 

Simple in design and most used and most manufacture PCB is single sided rigid PCB.  Multi-layer rigid PCB can more compact by containing 9-10 layers.

6) Flex-rigid PCB:

Combination of Flexible circuit and rigid circuit is most important board.  Flex-rigid boards consists of multiple layers of flexible PCB attached to a number of rigid PCB layer.  Flex-rigid board is as shown in figure.  It is used in cell phones, digital cameras and automobiles etc.

Flex rigid PCB

PCBsupplierChina thank you your reading！