Layout double-side BGA for FPC is used in some products, but since the complexity of manufacturing process and maintainability need to be taken into consideration, the designers need to pay attention in followings:
1. Do not overlap when layout double-side BGA and a certain of distance is required left. The reason why to do that as it is difficult to repair if there is poor BGA on one of sides.
2. In order to prevent the BGA on the bottom from melting during the second time reflowing, it is required to decrease the bottom temperature in the second time reflowing. It is better to decrease the bottom temperature lower than to the melting temperature of solder joints to ensure that the solder joints do not melt again. What’s more, you can fix the bottom BGA with jig.
4 ways to increase deformation resistance for flex circuits:
1. The stress resistance of BGA can be strengthened by a supporting iron frame around it.
2. The stress resistance of BGA can be strengthened by gluing around it or on the corresponding back of flexible PCB.
3. If you aim at protecting the BGA, then you are able to add screw to fix the other parts around BGA. In this way, the other parts around BGA won’t deform easily.
4. Strengthening the outer shell of flex circuits to avoid its deformation affecting the inner circuit.
As the premier expert in flexible circuit fabrication, Best Technology has a team which always striding for high quality flex circuits and services. If you would like to know more about Best Technology, please give us a call at 0755-29091601 or view our website: https://www.bestfpc.com/
If you have ever learned something about flex circuits, you would know there is a layer of coverlay on it. Pasting coverlay on flexible circuit is to prevent it from the damages of dust, moisture and so on. Meanwhile, it also plays an role in insulation. We have learned something about the benefits of pasting coverlay on flex circuits, but how to paste the coverlay? Let’s take a look.
To begin with, we need to prepare the coverlay material, checking whether the soldering iron has power, cleaning the residue of soldering iron and the dust-free paper.
The procedures of pasting the coverlay on FPC:
- Checking whether the coverlay and film have problems, including missing punching, missing drilling, too large burr on the coverlay etc.. After that, clean the dust on the surface of coverlay with packaging cleaner.
- Cleaning the worktable and putting the coverlay, soldering iron and other tools in the right place.
- Checking whether there are oxidization, litter, dust etc. on the flex circuits to be pasted.
- Pasting the coverlay should follow the requirements of process and the MI data. It should be strictly follow the “C”marking line, pad or counterpoint hole when align.
- How to peel the coverlay off: putting the covelay on the optical desk, but please remember that the release film is facing up and the coverlay is facing down. After that, holding the coverlay then peeling off the release film slowly.
peeling the coverlay off
- Fixing the coverlay on FPCwith soldering iron after the coverlay is aligned with the “C” marking line of the flex circuit board and ensure it is correct, so that the coverlay can not deviate or peel off. However, please remember the soldering iron can not burn the products.
pasting coverlay on FPC
- Single-side lamination: after pasted the coverlay on FPC, it should be gone through the machine with temperature between 160°C-165°C. Next, until the board got cold, the release film should be peel off and carry out the single-side lamination and self-checking.
1. It is necessary to wear rubber gloves to prevent the flexible printed circuit board from oxidization or dirty.
- It must be kept clean during pasting coverlay on FPCto prevent there are dirty residues on flex circuits.
- It is required to check whether the coverlay is broken, wrinkled, scratched, etc..
- Do not wear accessories to avoid scratching the board.
- It is necessary to confirm that the coverlay leave a little bit space for plating if the flex circuitsare tin or gold plating.
- The hand could not beyond the handle to avoid burning when holding the soldering iron.
Best Technology is the premier expert in the manufacture of electronic components, brings a unique combination of technology and quality that offers a competitive supply of flex circuits and rigid-flex circuits and other flexible circuit products. With high qualified engineers, we are able to help you find a FPC with high quality. To find out more, contact Best Technology at 0755-29091601 or check the website: https://www.bestfpc.com
With the development of smart phone, the mechanical key has been already eliminated from the stage. There is only the HOME key left on the front side of the phone. Even sometimes the HOME key is also out and there are only two keys left–volume key and power key. These two are usually used a FPC to save cost as well as space. The structure showing as below:
volume key & FPC
power key & FPC
For the design of volume key and power key, there are two things required to considerate. On one hand, the position of the flex circuit. Since the flexible circuit is glued on the supported wall, three directions need to be limited if you would like to fix the FPC. As well, the designers still need to consider the installation position of the keys itself, which determines the basic structure of the keys.
On the other hand, the volume key and power key are moving parts. Therefore, taking the stroke of metal domes into account is necessary and as general rule the stroke is 0.3. In addition to hard contact mode, there is also a soft contact mode (P+R), which is to use rubber or TPU (Thermoplastic polyurethanes) for the part where the key is contact with the dome, so that the sound is softer.
Best Technology is the premier expert in the manufacture of electronic components, brings a unique combination of technology and quality that offers a competitive supply of flex circuits and rigid-flex circuits and other flexible circuit products. To find out more, contact Best Technology at 0755-29091601 or check the website: https://www.bestfpc.com/
On November 29, 2018, we are pleased to host Caroline O’Brien from UK during her trip in China. Both of us have a really friendly and nice talk in the meeting room of Best Technology.
During the meeting, we introduced something information of our company firstly. Then the detail information of flex circuits in the sample album also explained in details by our account manager Celine. After that, the customer recognized the comprehensive strength of our company.
Celine introduced FPC
After the short meeting, Caroline went to visit our FPC factory in the company of our general manager Peter. The manufacturing process of flexible circuits that customer interested in are explained clearly by Celine. Caroline was satisfied with our equipments of production line with high performance and high quality.
Visited FPC factory
After the visit, Caroline knew Best Technology in further. In the future, we hope we can make it better and provide the most suitable and the most satisfying service for our clients, too.
Took a photo at Best
Since throwing its hat into flex circuits manufacturing industry, Best Technology is always dedicated to be customers’ best partner of flex circuits and rigid-flex circuits in China, to serve worldwide customers.
We can see this scene a lot in the science fiction movie. Although you are still on the way to home, but the water heater has already heated the bath water according to your off-hours. Even if you are stuck in the traffic jam, there is no need to worry about the water getting cold. Because there is a setting in your car and you are able to set another time to heat the bath water. We will live in interesting times in the near future as soon as this comes true.
- 2L flex circuit
- 6L rigid-flex circuit
The connected home, with the ever-increasing devices and functionalities produced for it, has the potential to transform how we experience residential living – both in terms of how we interact with our residence as well as how this interaction positively influences our everyday lives.
The development of connected home expands the market of flex circuits. The reason why flexible circuits so popular is that it possesses the benefits of high layout density, reducing weight, eliminating connectors etc., so it becomes the first choice for connected home products.
Best Technology as a professional flex circuits manufacturer for many years, we fabricate various type of flexible circuits, including single side flexible circuits, double side flexible circuits, muti-layer flexible circuits, rigid-flex circuits an so on. Since established in 2006, Best Technology always tries its best to catch up with the steps of the times and spares no efforts to make flex circuits those can meet the requirements of the market.
Royole Corporation released the first foldable flexible screen mobile phone (FlexPai) last month in the world. Its release perfectly figures out the long-term contradiction between HD large screen and portability. Meanwhile, it created a new way of human-computer interaction.
Actually, in addition to mobile phones, flexible screens are widely applied in smart home. The televisions with curved surface screen are no wonder to everyone, but most of people will keep an eye on flexible screens. If the flexible screen can be used in display devices of smart home, the display devices will have more affinity in human-computer interaction.
Think about it, there are many interactive displays that can be turned on and off at any time, everywhere. Then your home will seems like the scene in science fiction movies. But if we would like to realize the flexibility of the screens, flex circuits must be used in the designing. Because as the name implied, the flexible circuits possess the benefit of high flexibility which make them can be folded at your will.
As a professional vendor of flexible circuits, from 1 layer to 10 layers, 2 layers rigid-flex to 16 layers rigid-flex circuits, Best Technology is always be your best partner of flex circuits in China.
With the fast development of Best Technology and the improvement of our equipment, we keep expanding the international market, too. More and more foreign customers are attracted by our high quality products and advance technology. 0n October 25, 2018, another foreign customer who is from South Africa came to visit us. Meanwhile, they do a lot of field work to find more suitable products and more satisfying service.
Picture1: In the meeting room
During this visit, the customers had a better understanding of our strength. Our general manager Peter warmly welcomed them and talked about the information of flexible circuits in details. After the short meeting, the customers went to visit our FPC (flexible printed circuit) factory. In this way, they knew more details of manufacturing process about flexible circuits. We were complimented in many aspects by the customers, including the quality of products, capability of manufacturing and advanced technical equipment.
Picture2: Took a photo
After this meeting, we knew each other in further. They were also very satisfied with this visit and both of us look forward to seeing each other again.
Best Technology is always dedicated to provide the most suitable and the most satisfying service for customers. As a professional FPC vendor in China, we sell our products to worldwide. In October, 2018, since American customer Grayhill is attracted by our company culture and service, he came to visit our flexible printed circuit factory again.
At first, our general manager peter had a short meeting with them. They talked about the requirement of product design and the demand in the product.
Picture1: In the meeting room
After the conversation, we showed customer the production equipment and explained the operation methods to them.
Picture2: Peter explained operation methods
Next we went to see how to operate the equipment and learned more details about the manufacturing process.
Picture3: The technician operated the equipment
The more the customer know about us, the stronger sense of trust is. The customer and our company both got a lot from this visiting. Hoping we can do better and make customers satisfy with our service and products and to be customer’s best partner of Flexible Circuits in China.
On October 18, 2018, Customers Son and Nguyen from Vietnam visited Best Technology. At first, they visited our office and would like to know more about the Flex PCB design. So they came to our Flex PCB factory for visiting.
Picture1: Watching the sample album of FPC
During visiting the FPC factory, they learned more details about our workshop and the FPC manufacturing process.
Picture2: Visiting the workshop of the factory
Picture3: Visiting Flex PCB equipment
After they knew the product and the manufacturing process in further, customers and we both believe that Best Technology is able to provide the most suitable products and the most satisfying service for our clients, to be customers’ best partner of Flexible Circuits in China!
Picture4: Taking a photo
BEST always be your best choice of Flex PCB. And we hope the partnership can enhance our capability to supply our customers with good quality Flex PCBs.
In this golden fall, one of the Chinese important holidays—National Day is upcoming. First of all, Best Technology would like to thank you for your continued concern and supporting. According to the national regulation, we will have a holiday from October 1st, 2018 to October 3rd, 2018. And the factory will reopen on October 4th, 2018.
In order not to delay your business, we recommend our clients go ahead or postpone your orders. If you have any questions during the holidays, please feel free to contact us at +86-755-2909-1601, or firstname.lastname@example.org
We wish you and your family a wonderful holiday and we thank you for your continued supporting.
All the members of Best
Best, always be your best choice of Flex Circuit in China.