Flex Circuits: Information to Know

>> Tuesday, September 14, 2010

Today almost all of us use some kind of electronic device. They not only make our lives easier but they are an improved form of technology. But have you ever bothered to find out how these devices work or what components make them so useful?

There are various components that go into appliances and other devices, but flexible pcbs are used in just about all of them. These flexible pcbs are reliable and inexpensive. However the initial cost is high as they need detailed layouts as compared to wire wrapped circuits.

The flexible pcb is developed by means of a flex circuit, which is a type of technology applied to assemble the electronic circuit. The process includes mounting the electronic apparatus on substrates like polyimide. The flex circuits are made by the application of photolithographic technology. The components required to build the flex circuits are similar to those needed for printed circuit boards.

The technology of flex circuits is used in appliances where rigid circuits cannot be used due to various issues such as production, space, and flexibility. Gadgets where flex circuits are used include cameras, mobile phones, and computer keyboards. The biggest advantage of the flex circuit is that it takes the shape of the gadget where it is used, hence allowing ease in working.  

As far as application is concerned, the common material choice of flexible circuits is polyimide film. This is due to the average performance and cost factor of chemical characteristics, electrical, and thermal performance. This material can even withstand the temperatures in manufacturing soldering operations. The material is also used in wire insulation and as insulation in motors and transformers.

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