Main points of FPC Layout design

 FPC (flexible circuit board) design involves many key aspects, including material selection, layout design, reinforcement design, etc. Here are some of the main points of FPC design: ‌

‌ Material selection ‌ :

Side keys and main keys are usually selected 18/12.5 double-sided electrolytic copper, to ensure that there is no abnormality in bending more than 8 times.

The connection line also uses 18/12.5 double-sided electrolytic copper to meet the connection needs.

In terms of the material selection of sliding cover plate, the double-layer sliding cover plate uses 1/30Z single-sided copper-free electrolytic copper, while the double-sided sliding cover plate uses 1/30Z double-sided copper-free electrolytic copper to ensure the flexibility and ductility.

The multilayer plate is made of 1/30Z non-gel electrolytic copper to ensure softness and ductility.

The choice of auxiliary materials such as adhesive paper depends on whether ‌SMT (surface mount technology) is required to determine whether to use high temperature adhesive paper.

‌ Layout design ‌ :

FPC design requires presetting basic routes and styles, taking into account the volume of the machine and the location of key components.

Circuit design should pay attention to the use of round-trip tortuous parts, in principle, the use of single-sided FPC, complex lines use double-sided FPC, and pay attention to avoid the formation of holes to affect the folding resistance.

FPC design is basically the same as PCB design, but FPC is soft, not easy to assemble and weld, need to add rigid materials on the back of the components or plugs and other non-bending areas to support or facilitate assembly, these rigid materials are called reinforcement.

‌ reinforcement design ‌ :

Reinforcing materials include ‌PI reinforcing, ‌ steel sheet reinforcing and ‌FR4 reinforcing. PI reinforcement is suitable for plug plates with pull fingers, steel reinforcement should be careful to avoid the risk of short circuit, and FR4 reinforcement is used in other locations where thickness and rigidity need to be increased.

‌ Our company supports the FPC reinforcement area design function, you can directly place the reinforcement area and set the material, thickness and other properties to improve the design efficiency.

‌ Other precautions ‌ :

FPC design also needs to consider factors such as current volume, thermal presets, and copper foil thickness used locally on conductors to ensure circuit insulation and durability.

FPC soft and hard board combines the light and free bending characteristics of flexible circuit boards with the stability and high efficiency of hard circuit boards, suitable for wearable technology and smart devices and other products with high performance and reliability requirements.

Through the above points, FPC design can be effectively carried out to meet the needs of different electronic products.

For furhter information, pls feel free to contact us: sales9@hitechpcb.com

Website: www.hitechpcb.com



Comments

Post a Comment

Popular posts from this blog

How to solder the flexible PCB board?

  Before soldering, apply flux to the pad and treat it with a soldering iron to avoid poor tin plating or oxidation of the pad, resulting in poor soldering. Generally, the chip does not need to be processed. Use tweezers to carefully place the PQFP chip on the PCB board, taking care not to damage the pins. Make it aligned with the pad and ensure that the chip is placed in the correct direction. Adjust the temperature of the soldering iron to more than 300 degrees Celsius, dip a small amount of solder on the tip of the soldering iron, press down the aligned chip with a tool, and add a small amount of solder to the two diagonal pins. Hold down the chip and solder the pins on the two diagonal positions to make the chip fixed and unable to move. After soldering the opposite corners, recheck the alignment of the chip position. If necessary, adjust or remove and realign the position on the PCB board. When starting to solder all the pins, add solder to the tip of the soldering iron, and a...
Read more

How is the cost of SMT patch soldering calculated

The calculation of SMT patching prices is now almost transparent, and the algorithm for determining the cost per point is straightforward. However, it is first necessary to clarify the concept of "point". Different companies adopt varying algorithms, but for a PCB board, the total cost of SMT patching processing remains consistent. The core of SMT patching processing is to mount surface - mount components onto the solder pads of a PCB. Some companies count one solder pad as one point, while others consider two solder pads as one point. In this article, we take the example of calculating one point per solder pad. It only requires calculating all the solder pads on the PCB board. However, for some special components such as inductors, large capacitors, ICs, etc., additional calculations are needed. The specific empirical methods are as follows: for example, an inductor can be counted as 10 points, and an IC is calculated as half the number of pins (for example, a 40 - pin IC is...
Read more

How can we identify Integrated Circuits board and PCBA

  Inspect the surface of the PCB component body If a used  circuits board   part has been polished to make it look new, there may be tiny scratch patterns on the surface when observed under a magnifier. If it is covered up with paint on the surface, it will look bright and have no plastic texture. Inspect the printed text High-quality producers use laser printers to print the text silk-screen. It has a clear appearance, is non-conspicuous, and is difficult to erase. Typically, the text on refurbished chips is printed fuzzy and is not as sharp. You may find that the edges of the characters are blurred. The characters may be offset and the shades and colors may not be uniform. Moreover, many re-furbished chips use stencils for re-printing. In this case, if you feel the printed text, it should be easy to tell if it is new or refurbished. Inspect component pins If the component pins are shiny with a thin coating, then it may be refurbished. Original components are tin plated,...
Read more