During the flexible printed circuit board manufacturing process, a flex circuit coverlay (aka coverfilm) is used to encapsulate and protect the external circuitry of a flexible circuit board.
A flexible circuit coverlay serves the exact same function as solder mask that is used on a rigid printed circuit board. The difference with a flex coverlay is the needed element of flexibility and durability it provides to the flex PCB design.
The coverlay consists of a solid sheet of polyimide with a layer of flexible adhesive that is then laminated under heat and pressurized to the circuit surfaces. The required component feature openings are mechanically created using drilling, routing, or laser cutting.
Typical coverlay thickness is 0.001″ polyimide with 0.001″ of adhesive. Thicknesses of 0.0005″ & 0.002″ are available, but only used as needed to meet specific design requirements.
For more information visit our website to learn more about our flex & rigid-flex PCB manufacturing process!
As predicted by Best Technology Co.,Ltd., the market for flexible circuits is going to continue to expand steadily in the future, just as it has been doing for the past three decades. The reasons for this are not hard to find, as, on one hand, flexible circuits continue to support the existing technology so important to different industries, while on the other hand, advanced flexible circuits are able to comfortably meet the futuristic demands being made by up-coming industries, including the military, avionics, aerospace, telecommunication, consumer electronics, medical, and automotive.
One of the latest applications that flexible circuits have independently triggered as an explosion is the wearable electronics market. Wearing electronics on the body essentially calls for comfort, and flexible circuits guarantee this. Some examples of wearable electronic applications prevalent on the market are wrist-worn activity and body function monitors, foot-worn sensors, wearable baby monitors, medical sensors, pet monitors, and electronics on worn clothing. By bending and forming flexible circuits to suit the curve of the human body, the applications provide comfort for long wear and use.
Since establishment on June 28, 2006, Best Technology has been dedicated to being your best partner of flexible circuits solutions for our customers. We prefer to lose quantity rather than lose quality and with adhering to the company culture for so many years, more and more customers have been attracted by us. We are so grateful for what we have obtained so far and we will insist on providing the most satisfactory products and services for our customers. Welcome to Best Technology.
If you have a new product launch on the books, and it’s going to be a big project. Your PR department is already spinning the press release, and your marketing department has been laying the groundwork for months. Suddenly, your flex circuit board vendor says that they’re running two weeks behind. That’s not a problem, is it?
As a business owner, you can’t afford to miss a product launch deadline or to run out of inventory when your customers are eager for your products. That means every single step in your supply chain must be reliable. If one vendor falls behind, the entire system grounds to a halt, meaning costly delays or mad scrambling, which is unacceptable.
Then,when you are seeking for vendors, consistency is the key. At Best Technology, we understand how important it is to meet your deadline. We are experts in manufacturing flexible circuit boards and rigid flex circuits based on the highest quality standards and we have accumulated much experiences since our establishment on June 28, 2006. We also own an excellent shipping department capable of getting your order to you on time wherever you are. You can rest assured we will not fall behind and cause delays!
If you are looking for a new flex circuit vendor or are unsatisfied with your current vendor, contact us today. We will give you a surprise.
One of the first steps in manufacturing a flexible circuit is to build a circuitry pattern. In order to define the circuit pattern correctly, one needs to understand the basic process for building a circuit. Processes tend to fall in one of the following two categories:
The substrate begins with copper bonded to the dielectric, the unnecessary metal is removed; the remaining metal defines the circuit traces. The basic process steps for a subtractive process are:
Create resist pattern
Etch away exposed metal
Continue to process
Many possible methods are adopted for the creating the resist pattern, the following are two of the more common ones.
I. Screen Print
Screen print resist pattern
II. Photo Image
Apply resist coating
Photo expose image onto resist
Develop away unexposed resist
Screen printing stands for a tool made by forming a negative of the desired pattern on a woven screen mesh. The resist material is pushed through the open mesh and forms the circuit pattern on the substrate. The initial state of the resist material is normally a paste or semi-liquid. After the material is applied to the substrate, the resist needs to be cured. The cured resist protects the covered copper areas during the etching process.
In regards to photo imaging, a photo tool is created that is the negative of the desired pattern. The photo tool is placed over the resist coated substrate and flooded with a UV light. The photo tool allows the light to cure the resist where the pattern is to be created and blocks the light everywhere else. The UV light causes a chemical reaction in the resist and transforms it to have the chemical and physical properties to withstand the etching process. The developing solution strips away all the “un-cured resist” exposing the bare copper to be etched away.
The substrate begins with just the bare dielectric (possibly with a seed coating), the metal is added to the surface to directly form the circuit pattern. The basic process steps are:
Apply conductive material
Cure conductive material
Continue to process
The additive material is usually a paste and is often applied by screen printing. The applied paste is then cured to reach its optimal properties. Materials that have outstanding conductive properties tend to require very high temperatures to cure. The dielectric substrate for flexible materials is a limiting element for the temperature level and tends to restrict the types of additive materials that are used to create a circuit pattern. Generally speaking, the electrical, physical and chemical properties of this type of circuit are significantly lower than the properties achieved via the subtractive process.
On September 21, all the staff in Best Technology came to the famous Phoenix Mountain under the leadership of Peter, our general manager.
This is a meaningful journey. We picked vegetables, cut up vegetables and cooked vegetables, the dishes were so delicious as to leave a deep impression on all the staff.
During the activity, we were divided into three groups. Each group was guided by one leader, everyone shared out the work and cooperated with one another. So it just took us 2 hours to finish up all the process before we can taste the delicious food in the end.
What is worthy of being mentioned is that Peter, as a general manager of Best Technology, can even make so many dishes, which were very tasty. He was so versatile that each of us felt great belief on Best Technology.
In such a competitive circumstances, the reason why Best Technology can keep growing can not do without the guidance of Peter and endeavor of every member. During the activity in the Phoenix Mountain, it was witnessed that everyone took an active part in it and cooperated with each other eye to eye.
Thanks to this activity, everyone got to know each other better, which will be conductive to the subsequent communication and work. Expect Best Technology will become stronger and stronger.
10 September 2019
We would like to take the opportunity to thank all our clients and business partners for visiting Best Technology at PCB West Exhibition this year.
We hope you enjoy your visit and the hospitality offered at our stand.
The exhibition gave us the opportunity to show the different PCB we can make.
Here are the pictures we took in the show for your reference.
Please do not hesitate to contact us if you have any questions or feedback that you would like to share.
We hope you can get something interest and helpful on your work from this exhibition. We look forward any feedback from you , also expect seeing you again in next show, you are also welcome to visit us at any time.
Best Technology will be participating in PCB West exhibition at the convention center in SANTA CLARA on Tuesday, 10th, September 2019. PCB West attracts nearly 3,000 visitors comprising of designers and engineers and more than 100 exhibitors each year.
You will see 10mm to 1,500 mm flexible circuit board, from 2 layer rigid-flex circuit to 50 layers, 1/2 OZ copper to 3 OZ, 0.15mm extra thin FR4 PCB to 30 OZ heavy copper, turn-key service includes FPC, PCB, MCPCB, Ceramic PCB, components purchasing, Product Assembly. Welcome to see how much we can save your time, your money!
Don’t miss out on an opportunity to visit the Best Technology booth and find out more about the technology, services and solutions that we can deliver to you and your customers.
BEST TECHNOLOGY BOOTH NUMBER: 603
Feel free to get in touch with us to schedule a meeting ahead of time at firstname.lastname@example.org
On Jul. 25th, customer Mike from the United States visited our company. Mike is very nice and smart and it was his third time to visit our company. This time he mainly came here to visit our SMT (Surface Mount Technology) and FPC (Flexible Printed Circuit) factory. Before going to the factory, our FPC team had a meeting with him first to get familiar with each other. During the conversation, we surprisingly found that Mike ever stayed in Hunan Province before, which is the hometown of Celine and Gloria, the member of flexible PCB team. So we really had a good time! During the meeting, our CEO Peter also introduced Mike our capability of rigid flexible circuits, flex circuit,metal core PCB, ceramic PCB and metal dome.
In our office
After that, we went to visit the SMT factory and FPC factory. Mike has stayed in the Printed Circuit Industry for many years and thus he is very professional. We admired his profound knowledge in the production procedure and he also thought highly of the both factories. Mike also indicated something that we need to improve to achieve better quality. That is very nice and we really appreciated him.
Mike and Peter in SMT factory
Mike and Peter in SMT Factory-2
Mike and Peter in SMT factory-3
Mike and Peter in FPC factory
Mike and Peter in FPC Factory-2
Mike and Peter in FPC Factory-3
After visiting the FPC factory, Mike also showed his interest to visit the DES (Developing, Etching and Stripping) factory. So, we made extra plan to visit the DES factory. The manager from DES factory warmly received us and it took us half an hour to visit the whole factory. We visited all the procedure from developing, etching to stripping. It was really an amazing experience.
Mike and Peter in DES factory
After all the visiting, Mike had more information of our capability and he trust us more. We also understand his requirements more. Thank you, Mike. Looking forward to have further cooperation with you.
On July 11, we had an awesome customer from Germany visited us this morning, in fact Peter, our general manager and Tiffany, our salesgirl just visited his company one month ago in Frankfurt. This time Customer visited our office, FPC, SMT factory and had a delicious lunch with us. Furthermore, he gave us more projects also including Ceramic PCB.
Taking a photo in the office
Taking a photo in the factory
In the meeting room
Thanks for his great support and we will be dedicated to providing our customers with the more and more satisfying products and services.
To learn more, please log on https://www.bestfpc.com.
Last Friday (June 28) is the 13th anniversary of Best Technology. Hereby peter, our general manager and all of the colleague in Best Technology gave the best wishes to all of our clients, partners and suppliers. Thanks for the continuous support from them and look forward to building a brighter future with them.
To learn more, please log on https://www.bestfpc.com/