Today I’d like to share what’s the difference between Adhesive PI and Adhesiveless PI.
Item 1: Adhesiveless PI stack up
As you can see in above stack up, there is no adhesive connect the Copper layer and Polyimide.
There are four advantages of adhesiveless PI:
As you know, the thickness of adhesive is around 12.5um, 15um, 20um. If you have strict requirement for the whole board thickness, it will be a good choice to use adhesiveless PI.
Adhesiveless substrate is thinner than adhesive substrate, so it’s bending is better.
3. Heat resistance
Due to the adhesive have poor performance in heat resistance, so without the adhesive, the adhesiveless base material have better heat resistance.
Under the same temperature, such as 200℃，the tearing strength of adhesiveless PI change a little. But the tearing strength of adhesive PI material rapidly decrease.
4. Dimensional stability
The dimension of adhesiveless board change very small when the temperature increase. Even under the temperature of 300℃, it’s dimensional changing rate is no more than 0.1%.
Good dimensional stability will be great help for fine wiring process.
5. Chemical Resistance
The adhesiveless substrate have good performance of chemical Resistance, it’s tearing strength have no obvious change with time increased.
The adhesive base material has poor chemical resistance, so it’s tear strength decreases greatly with the increase of time.
The only disadvantage for adhesiveless PI is it’s a little expensive than adhesive PI.
Item 2: Adhesive PI stack up
As you can see, the thickness of 2 layer adhesiveless FPC is 0.19+/-0.03mm.
The thickness of 2 layer adhesive FPC is 0.23+/-0.03mm.
If you need thicker thickness, the adhesive PI might can meet your requirement, the cost will be much lower than increase copper thickness or PI thickness.
There are two mainly advantages for adhesive PI:
Anyway, if your project need thinner thickness or smaller line width and space (0.05mm), adhesiveless PI will be the best choice. Welcome to contact us at firstname.lastname@example.org if you need to know more details.
Have you ever been heard about the dual access flexible circuit? Why it named dual access flexible circuit? After you read my e-mail, you will find the answer.
Dual access flexible circuit board is similar to double side FPC, but it has different stack up to double side FPC. Why it named dual access FPC? Dual access can access to both side by copper, so it named the dual access flexible circuit. Dual access flex PCB only have 1 layer copper, and coverlayer on both side. They can connect both side by layout through coverlayer opening, and do not need to drill the holes like 2 layers flex PCB to connect both side.
Working principle: The coverlayer play the role as an insulator, the copper is a very good kind of conductor. One side is anode, and the other side is cathode. If they the current flow, they form a closed loop circuit.
It can be connected to both side through copper, and do not need to make a through hole. If it is 2 layers FPC. You have to make a through hole to connect both side.
2. The appearance will be more beautiful than 2 layers flex PCB. Because we can conduct by trace, it will be more beautiful than through holes to conduct.
Dual access circuit disadvantages:
Complex production process: The production process is similar to 2 layers flex circuit, but it will be more difficult and complicate compared with 2 layers flex PCB. It is easy to scrap. And many factories can not make dual access circuit board due to production technique.
Easy to wrinkle. Because the dual access is very thin. Only one copper and two coverlayers, it will be easy to tear up. When it comes to laminate process, is also very easy to laminate wrinkles and blister.
If you have any questions or would like to learn more details, please feel free to contact us.
Recently, Best Technology has completed 14 years of its glorious journey. Every small step is worth celebrating. On June 26, 2020, our founder, Peter, Emily, group leaders and all the employees spent this unforgettable festival in union.
On Best Technology successful journey, Peter stressed- “These past 14 years have been a period of growth and a learning experience for us as we went through several trials and errors till we deliver successful business. Today we are proud of the fact that our employees can make great progress day by day after training with us and feel confident taking on tough project-related challenges,thanks for all the endeavour from employees and thanks for the great support from our suppliers and customers. Best Technology’s continuous development can not do without them.”
We have come a long way from 2006 when we started off with just 1 people(Peter). Today we are proud to announce that we have nearly 100 employees and many sister companies spread all over China mainland and also have customers in over 150 countries around the world.
From above, it is evident that there has been a staggering growth in the number of employees in the span of 14 years. This enhanced employee strength has built the roadmap to Best Technology’s success.
The above graph presents our company’s growth against the years 2006 to 2020. It can be seen that the growth rate is very high from 2006($8000) to 2019($6560,000). At this year 2020, Best Technology still keeps growing with increasing sales volume in spite of COVID-19 outbreak.
Best Technology’s unique journey has been a brick-by-brick progress and has entailed years of efforts. Our company’s commitment in becoming world class distinctive solution of printed circuit board and metal domes in 2025 has paved the way to the series of milestones achieved. These are equally appreciated by the correct leadership of our chairman, Peter.
The primary aim of our company has been to equip the professionals with all possible accoutrements to tackle on-job challenges. Today’s ever changing face of businesses demands deeper knowledge, quality, and on-time delivery. Customers are always looking out for continuous and improved delivery. The best means to achieve the same is to keep improving.
We will continue our journey towards innovating the new ways of learning, delivering excellence to the customers and lending a hand to achieve professional goals.
What’s more, Best Technology’s 14th-year anniversary celebration is a solemn procession of efforts and dedication of the trainers and staffs who have spent their quality time to provide the best services and meet more expectations of the ever evolving PCB world.
Best Technology, a China- based assembly manufacturer will be exhibiting at electronica Munich2020 in Bavaria, Germany at booth No. 623(Hall B1) from November 10, 2020 to November 13, 2020(Western Time). Actually, we have participated in this exhibition for continuous 2 years. Here are some pictures for your reference.
For interested professionals, Best Technology had on hand experts to offer detailed insights and experience on PCB assembly, covering PCB prototype and low/high-volume production. For more information on PCB assembly and fabrication, welcome to visit our booth.
You are warmly welcome to see how we can manage the components wastage and efficiency to help save your time, money and energy.
About electronica Munich:
Electronica is the international trade show for electronic components, systems and applications and shows the full range in all its diversity in width and depth as the world’s leading trade fair. It reflects the high degree of innovation throughout the industry. Exhibitors and users in the areas of systems, applications and technologies of electronics can receive the information of the latest innovations and developments in the fields of system peripherals, power engineering to printed circuit boards or EMS.
Welcome to visit us at Booth 623 from November 10, 2020 to November 13, 2020(Western Time).
China’s fight against COVID-19 epidemic has achieved victory at this stage. Infected patients were found in 337 cities in China but now only 28 cities remaining patients in cure. So far till March 31st, there were 82545 confirmed cases in China, while 76225 cured and only 3006 remaining now. Most importantly, many of the areas finds only one figure number increase and others stop increasing for quite some days. If the first half of COVID-19 fighting is inside China national territory, the second half will be on the international stages while noticeable growth on COVID-19 infected cases are spreading all over the world now.
Best Technology has been collecting the measures in China on epidemic controls so in order to provide a more objective and useful reference for overseas professionals which we hope they could refer to and protect better themselves from the COVID-19.
During the height of the outbreak, trains didn’t stop at the disease’s epicenter, Wuhan
Trains, as well as other tightly packed forms of transportation, can serve as vectors of illness. The more people, the more closely packed, and the more poorly ventilated the space, you can imagine that’s a bad situation because there are a ton of people, they’re in very close quarters, and they’re a totally captive audience. Cutting off transportation was considered on the top three measures to contain the spread of the virus.
China built new hospitals in a rush, with workers toiling night and day to get them done.
China built two new 1,000-1,300-bed hospitals to fight the corona virus, one created in six days, and the second in 15 days, using prefabricated modules.
Corona virus testing was easily accessible and free
In China, patients who were confirmed to have the corona virus were either sent to an isolation center or hospital. The government also made clear that testing for the new virus was free, and COVID-19-related charges that weren’t covered by a person’s insurance would be paid for by the government.
The country implemented large-scale contact tracing in the early 2000s
During the SARS outbreak in 2002-2003, China set up large-scale surveillance systems that included contact tracing, a front-line public-health strategy that involves identifying and following up with people who may have come into contact with an infected person.
The country postponed non-urgent medical care and moved many doctor’s visits online. Not all patients were given the critical care they needed during the outbreak, though
In China, elective surgeries and other non-critical doctors’ visits were delayed, and many medical services were moved online. Someone in one place said 50% of their consultations are now done online; they just moved a whole bunch of what was normally done physically online to be able to keep the regular health services going.
Centers for Disease Control exploring a way of therapeutic plan combing Traditional Chinese medicines and Western medicines.
The combination of Traditional Chinese medicines and Western medicines had been proven effective on the SARS fights. Doctors of traditional Chinese medicines had volunteered for consulting and participating into the virus fights.
China used technology that aims to trace every single COVID-19 case
Traditional epidemic prevention manufacturers speed up and similar production lines integrating to make more necessary products
Many medicinal and pharmaceutical substances manufacturers launched automation assemble lines and increase manpower to speed up the mass production of necessary drugs, masks, ventilators to meet the huge consumption during virus fighting. Many of these companies arranged 24-hour shifts for maximizing the production.
Meanwhile other manufactures such as automotive OEM had change their assemble line into masks productions machines.
At the blast of COVID-19, returning Chinese carrying back epidemic products from overseas as much as they can
Returning travelers carried extra masks on their flights back to China and donated them to the hospital and governments in need. Some overseas Chinese unions also had helped ordering these products and sending to China.
Chinese citizens did their part to curb the disease’s trajectory on an individual level, too, though we may never know the true scale of their complaints or sacrifices in this outbreak.
In contrast to reports in the US of people clamoring over the last hand-sanitizer, the attitude of people in China was that they were all in this together. People stay at home for self-quarantine, lockdown and response to the postpone returning to work and school.
People who thought they might have the corona virus could go to one of the nation’s many fever clinics
People who thought they had the novel corona virus in China would often be sent to a special fever clinic, which have been widespread since the country dealt with an aggressive SARS outbreak in 2002. Their temperature would be taken, and they’d discuss their symptoms, medical history, travel history, and any prior contact with anyone infected with a doctor.
If necessary, patients might receive a CT scan, which is one way to do an initial screening for COVID-19. Each machine did maybe 200 a day. 5-10 minutes/scan. A typical hospital in the West does one or two an hour.
People quickly shifted jobs in order to assist during the outbreak
When it came to the non-medical response, there was a nationwide sense of solidarity with Hubei. Other provinces sent 40,000 medical workers to the center of the outbreak, many of whom were volunteers.
Workers in transportation, agriculture, and clerical positions were encouraged to new positions such as delivery, courier and epidemic prevention manufacturing, too.
While staying home, it’s been relatively easy for Chinese people to get extra food and supplies
China essentially mandated a country-wide shut down, demanding that every Chinese resident stay home until the curve was flattened. But in West, unlike China, a country-wide shutdown would be difficult to enforce.
Fifteen million people had to order food online. It was delivered. Yes, there were some screw-ups. But few said: every now and again there’s something missing from a package, but food supply is pretty much normal via ordering online.
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.
On April 17, 2019, some of the teachers and students from Guangzhou University came to Best Technology for investigation, with the aim of learning from the successful experience and advanced practices of colleges and universities in high-level talent team construction and personnel training, and strengthening inter-school exchanges as well as deeply understanding the corporate culture of Best Technology and deepening school-enterprise cooperation.
With the continuous development of the world economy and the continuous improvement of the socialist market economy, the competition among enterprises is becoming more and more serious.In such fierce competition, how to preserve strength and achieve development has been included in the development planning by more and more enterprises. And the corporate culture, just like the spiritual water to save the enterprise, is becoming more and more prominent.
In this enterprise investigation, the two parties held discussions on internal management system and so on, wishing to take this research as an opportunity to carry out in-depth exchanges and discussions in line with the principle of “complementary advantages, win-win cooperation” in order to promote the common development of both schools and enterprises.
This exchange not only broadens the field of vision and updates the concept, but also plays a positive role in promoting the construction of high-level talent team, strengthening school-enterprise cooperation and so on.
President Xi ever said, talents are the first resource. The development of a company can not do without talents. Considering this, Best Technology’s human resource team came to Guangxi Yulin Normal University in the hope of recruiting more fresh energy with the increasing trend of corporate business on March 29, 2019.
This is an exciting Spring, as well as a graduation season. Best Technology, as a leading supplier of circuit boards, will naturally not miss this opportunity to absorb talent from all over the country to better serve its clients.
In a sea of the crowds, the graduate students were so dynamic and energetic. After a mutual understanding and acquaintance, Best Technology harvested a good deal.
Since established in June 2006, Best Technology was dedicated to becoming the best suitable partner of specific, advanced, high-precision printed circuit boards. We don’t forget why we started and move forward bravely. It is just this corporate idea that drives us to welcome one customer after another from all over the world.
We do believe, with the addition of fresh energy, Best Technology will usher in a brighter and more gorgeous tomorrow.
Hello Everybody! We had backed to office on Feb 5! (The ninth day of first month of Chinese Lunar Calendar)
It’s a lucky and sunny day! We had 12 people backed to office (excludes people in factory) and according to Chinese culture, number 12 means every month will be lucky and full of successful!
Today one more girl back, tomorrow another guy will back. It’s a normal thing people didn’t back to office on the first day because there’re always something unexpected, such as Wedding, etc. In 2017, we had saw the new baby born of Tiffany’s, wedding party of Hanna, and this year we will see more baby and wedding.
Everybody was so happy to see each other after 2 weeks Spring Festival and eat the wedding candies, as well as checking and replying emails. We have a simple and colorful lunch together and in the afternoon went to Phoenix Mountain Forest for hiking. This is a traditional activity on the first working day after New Year vacation in our company. We can talk to each other under the open air, everybody shared their stories and we always laugh when heard something interested happened during holiday.
Team Member in Phoenix Mountain
You can see how happy when we are walking!
Walking & Laughing
That picture very funny. Everybody is looking at different things, when we sit down together to have a break, in the square of mountain.
What you are looking for?
We believe after such long vacation, all of our team members were fresh with energy and are ready to provide best service and suitable products to our customers. Looking forward to hearing more news from our customers, partners, friends and family, as well as looking for new people to join our team to make their dreams come true!