1 / 4

How Are Flexible PCBs Manufactured - Miracle Electronics

You must partner with experts offering versatile PCB assembly services from India, such that you can have rigid PCBs built for your normal applications, along with flexible PCBs when necessary, without having to go elsewhere.

kumarpradeep1
Download Presentation

How Are Flexible PCBs Manufactured - Miracle Electronics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. How Are Flexible PCBs Manufactured? - Miracle Electronics Flexible (https://www.miracle.net.in/blog/flexible-pcb- assembly/) are the new versions of PCBs that enable the circuitry to be designed to fit electronic devices, no matter how small and complicated in design, as opposed to building devices to conform to the traditional rigid circuit board. These PCBs have an agile structure, occupy a very small volume, are light in weight, and can extend to three dimensional space; thus improving the freedom of circuit designing and mechanical structure design. All of this not only reduce the workload of the machine, but also improve the reliability and stability of the electronic equipment system as a whole. circuits

  2. Flexible PCBs and rigid PCBs – The similarities Both rigid and flexible boards use almost similar materials, manufactured in the most similar ways, but in a way that allows the board to conform to a desired shape, while flexing during its use. An alternative approach is to use various etching techniques to thin down the traditional silicon substrate to few tens of micrometers, to gain reasonable flexibility. Let us take a look at some of the similarities in the manufacturing process. Firstly, the flexible circuit board material is chosen, drilled, plated, photo-imaged, and imprinted just like normal rigid boards. Then, the panels are baked to remove any moisture from the wet process. Now, this is where rigid and flexible PCBs begin to differ. Traditional rigid PCBs go to the fuse mask station, while flexible circuits go to the cover lay station. This cover lay is a lamination process that summarizes and protects any peripheral circuitry of the flexible circuit, serving the same function that the solder mask does for a rigid PCB, but with an added component of flexibility. The thickness of the cover lay is prepared of 1 mil thick polyimide and a 1 mil thick adhesive, which are laminated using force and heat. The heat allows for flow of adhesive to fill in any gaps among the traces and pads to stop the trapping of air between layers. Manufacturing of flexible PCBs There are two types of flexible PCBs that can be manufactured, depending upon the application they need to be used in –single

  3. sided (https://www.miracle.net.in/blog/single-layered-pcb- multi-layered-pcb-one-choose/). and double sided Single sided PCBs– The processes involved in manufacturing single sided flexible PCBs include cutting, drilling, dry film lamination, positioning, exposure, developing, etching, removal of dry film, surface finishing, coverlay lamination, curing, surface finishing, immersion gold, silkscreening, and V-cutting/scoring. Double sided PCBs– The processes involved in manufacturing double sided flexible PCBs include cutting, drilling, plating through holes, electroless plating, pretreating, dry film lamination, positioning, exposure, developing, pattern plating, removal of dry film, lamination, positioning and exposure, developing, etching, surface finishing, coverlay lamination, curing, immersion gold, silkscreening, and V-cutting/scoring. Why not make all PCBs flexible? With the benefits that you learnt about flexible PCBs in this blog, you’ll wonder why all the PCBs made today are not made flexible. If flexible PCBs are so advantageous, why not have them to replace all rigid PCBs? This is so because it isn't practical. Flexible PCBs, because of the advantages they offer, are much more expensive than traditional rigid PCBs, which makes rigid PCBs easier and cheaper to manufacture in a typical automated high volume fabricating facility.

  4. Thus, it is always advisable to use flexible PCBs only where necessary, while employing rigid PCBs where possible, in order to keep the manufacturing costs down. However, whatever your requirement may be for PCBs, you need not go anywhere else. Just get in touch with Miracle Electronics, where you can get the most reliable and most versatile PCB assembly services from India, with end-to-end turnkey solutions (https://www.miracle.net.in/blog/turnkey- pcb-assembly-challenging-yet-beneficial/), together resourceful EMS capabilities of product designing, system designing, system architecture, value engineering, manufacturing, and logistics. blending For more Information: https://www.miracle.net.in/

More Related