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<br>Flex or flexible PCB is manufactured of flexible plastic-like substance, often polyimide which essentially encapsulates the thin copper traces of the electrical circuit within its plastic shell. Early flex PCB prototypes were filed in a European patent, from a paper-based technology. This technology has now been copied and adapted to meet the demands of electronics manufacturing. In fact, flexible PVC membranes are used in medical equipment. Now, flexible PCBs are widely used in electronic products such as PEDs (printed electronic devices) and other consumer electronics.<br>
<br>The technology of flex pcb can be traced back to the early 1960s, when engineers started to experiment with bent areas on the top of PCBs to create devices that can resist bending and flexing. These early prototypes have shown promise and helped make the idea of a flexible PCB feasible. However, these early prototypes did not last long. The heat flux, caused by soldering and moisture absorption caused by humidity and temperature fluctuations, caused these PCBs to fail after some years. The advent of polymers based on plastics helped to resolve these issues and gave birth to the PCB (printed circuit board) manufacturing process.<br>
<br>Another major hurdle in flex pcb manufacturing was the cost of PCBs. Rigid pcb materials were nowhere near the low cost of flexible ones, making PCBs unaffordable for electronics manufacturing. Yet, engineers managed to come up with solutions. Some of these involved increasing the thickness of the PCB material. Others involved creating materials which can self-align when exposed to heat.<br>
<br>Thanks to these solutions, PCBs are now affordable for electronics designers and hobbyists alike. It is possible to create PCBs with almost any thickness, depending on what the designer wants. The thickness of a flex pcb prototype may vary, however. For large companies and factories, the thickness must be as high as possible so that it can support heavy-duty industrial equipment. At the same time, it must be low enough to fit inside a desktop.<br>
<br>The PCB must also be able to display all the required data without any distortion. To achieve this, the traces on the board must be traces that do not have any discontinuous shapes. Engineers can use CAD programs for this. Most importantly, the traces on a rigid pcb prototype must have a very smooth transition from one color to another. This is because flex pcb prototypes will usually be sent to printing shops with different color patterns so that they can be easily matched with the rest of the components.<br>
<br>A major advantage that manufacturers can take advantage of with flex pcb design guidelines is that they can always make changes whenever the need arises without having to send the original design for modification. This allows a manufacturer to provide a more personalized look to their products. Flexibility in component design is a very important factor in creating quality components for electronic appliances. This is why manufacturers should always keep the final product in top condition with regular maintenance.<br>
<br>Aside from the overall flexibility of the pcb, the rigid flex pcb design guidelines can also provide ease of manufacture. It is easy to build on a standard computer or work station since the design templates can already be pre-downloaded into some CAD software applications. Once the necessary files are downloaded, the assembly can already begin. This means that the entire manufacturing process will only take up a few hours.<br>
<br>Since the flex pcb prototype has been introduced to the market, manufacturers have become more familiar with it. The designs and specifications of the product can already be followed during the designing phase. This means that even those who are not well-experienced when it comes to electronics and mechanics can still create quality designs by using flex pcb circuit boards. They just have to follow the design templates that are already available in the market.<br>

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