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2022-03-14 55
Flexible PCBs
A Flex PCB or FPCB is a patterned arrangement of printed circuitry and components that utilizes flexible based material with or without flexible coverlay. These flexible electronic assemblies may be fabricated using the same components used for rigid printed circuit boards, but allowing the board to conform to a desired shape (flex) during its application.
FPCBs are used widely in everyday technology and electronics in addition to high-end, complex completed components. A few of the most prominent examples of flexible circuits usage is in modern portable electronics, devices, hard disk drives and desktop printers. Flexible circuits are also used extensively in other applications and industries including:

Communications

Consumer Electronics

Automotive

Medical

Industrial

Aerospace

Military

Transportation


In transportation they are extensively used due to their improved resistance to vibrations and movement.
The Advantages of Flexible Printed Circuit Boards
Electronic devices have taken upon a prominent part of our everyday lives. The extensive range of devices from cell-phones to servers, regardless of their sizes and uses are now being designed to be flexible, lightweight and efficient. While they all come in diverse shapes, sizes and functionalities, there is one thing in common – they include flexible printed circuits boards.
Benefits of using Flex PCBs
Flexibility – the most prominent benefit. The elastic nature of the flex PCB allows placement around edges and folds.
The flexible nature of the flex circuit boards are used in electronic devices that require 3 axes connections.
Very little or no wiring is required that eliminates wire connection failure and increases the reliability of the device. Space and Weight Savings Flex PCBs save up to 60% of the weight and space compared to Rigid PCB or wire harness applications. Bending Cycles Flex PCB use in 3D designs eliminates connectors, while the number of bending cycles can be as many as 200,000 (with standard material) Anti-Vibration Benefits Added flexibility and lighter weights allow the flex circuits to absorb and reduce the impact of the vibration to itself as well as any solder joints in connections. Use in Harsh Environment Flex circuits can be built with materials that are suitable to use in harsh operating environments (materials that have the following properties: waterproof, moisture proof, shock proof, high temperature oil, corrosion resistant). Consistent Thin Inner Layers Heavy Copper Layers Heavy copper layers can be used for high-power uses with thin copper layers for flexibility
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