The reason for the problem of development is not clean and has Residual glue in FPC?

How to deal with these situation?

  1.  How to deal with these situation?There have glue mark and greasy dirt on the boards in prepared processing stage, it need to clean the plate thoroughly.
  2. The temperature is too high and time is too long in the stage of Pre-heating, so it need to control the temperature of the pre-drier, adjust it on normal temperature and strengthen the control of time.
  3. The exposure energy is too high on the stage of exposure, or the shading rate is poor of the base boards.
  4. The developing liquid’s concentration and the temperature are too low, so it need to check the concentration and adjust the temperature to normal timing.

FPC Typical Production Process

FPC Typical Production Process

Cutting -> NC Drilling -> Black Holes/Cu Plating -> D/F Lamination -> LDI Exposure ->Develop/Etch/Stripping -> Automatic Optical -> CVL Lay UP -> CVL Lamination -> Hole Punching -> Surface Treatment -> Screen Printing -> Open/Short Testing -> Adhere Stiffener -> Outline Punching -> Final Inspection

FPC Typical production process flow chat

FPC Typical production process flow chat

 Meanwhile we also can visit our website for single side Flexible PCB,dual access Flexible PCB,double side Flexible PCB or flex rigid PCB.

Differences between Roll Anneal Copper Foil and Electrolysis Deposition Copper Foil

Differences between Roll Anneal Copper Foil and Electrolysis Deposition Copper Foil

Roll Anneal Copper Foil (RA copper):

Formation: Roll copper block many times, and then do the annealing treatment with high temperature. The shape of its crystal is lamellar structure.
Advantage: Soft, smooth surface, suitable for flexible PCB and small lines.
Shortage: high cost

Electrolysis Deposition Copper Foil (ED copper):

Formation: Melt copper into dilute sulfuric acid, it becomes bluestone solution.
Through a high electric field, copper attach on the metal drum. With the rolling of metal drum, thin copper foil finally formed.

Advantage: Low cost
Shortage: Unsuitable for small lines; bad bending resistance.
Here is the cross section observation of RA Copper and ED Copper:

roll anneal copper foil and electrolysis deposition copper foil

Join US-Best Technology Co, Limited

As Best Tech get older and bigger,more worker and staff are needed,but we would better to employ worker who work in production line from China.For the staff in salesDepartment,we also would like to get some colleagues from worldwide,so now pls see the information as below to know who we would like:

Sales Manager:

  • Three years above experience in sale,2 years experience in Director of the ministry of foreign trade. Experienced with PCB or electronic is prefered.
  • Develop customers independently, customer management and Excellent customer analysis and business negotiation skills.
  • Manage Foreign trade team and Lead the group to complete performance targets.
  • College degree or above,CET-6 or above(For Chinese)
  • Fluent English:Can communicate with foreign session skilled, face to face to carry out business activities.

Salesman:

  • Responsible For Developing Customers
  • Maintain old customers
  • Search and find new customers from Google,B2B and yellow page,etc
  • Communicate with customers by telephone and email. Good business letter writing skills or the strong basic professional knowledge required meanwhile excellent verbal is required to be able to talk with customers by telephone and face to face without any problem
  • One year above working experience. Professional and academic: Business English, international trade,Marketing,etc, college degree or above; Secondary students will be fine if outstanding ability.
  • Ladies First,age:18~35; Excellent fresh graduate can also be considered
  • Experience in PCB/FPC sales or Understanding PCB production process will be better
  • No required for the experience in L/C, Trade documents and shipping management.Our payment is T/T and Net 30 days.

Company information:

  • Name:Best Technology Co, Limited
  • Address:Working place: 9E, Jindacheng Building, Center Rd(CBD of ShaJing), Shajing Town, Bao’an District, Shenzhen,China
  • Working Time:Monday ~Friday:08:30~12:00a.m,14:00~18:00 p.m; Saturday:09:00~12:00a.m;
  • Benefits:High basic salary+ push money+ year end bonus+ Full Attendance Award(High to 6200 Yuan/year);in-house and off-site training;Development :salesman- Supervisor -manager-director- vice president;International or Domestic Travel Incentives;free dinner and have lunch with boss + afternoon tea: Snacks and fruits;Free 1-layer check-up;Spring Festival transportation costs for Expenses(For Chinese);Paid annual leave:5 days for working than one year,and increasing every year;Sports fitness leisure activities every week, every month large group activities (camping, the beach barbecue), enterprise Internet activities every quarter, 1 ~ 2 times a year to expand training;Provide free accommodation;
  • Products:Flexible PCB,single sided FPCB,Dual access FPC,Muliple FPCB,Rigid Flex PCBand so on.

You can visit our website for more information or send your resume into info@bestfpc.com,also send us your email if you would like to know more.

Chinese Lantern Festival

Hello Everyone,

Today is Chinese Lantern Festival,While Chinese people would like to eat sweet dumplings,symbolizing family completely round.After this Festival,the Chinese Spring Festival is end and everyone will start to work hard for the better life.

In ancient times,Chinese people also guess Lantern riddle on this Festival,which is a very interesting game,and GuessGame also need the rich culture of China.

Warm welcome you come to China for Lantern Festival,but don’t worry we will provide some pictures of Lantern Festival if you can not participate in this Time.

Tangyuan

Tangyuan

Guess-game

Guess Game

Another questions which you may care,today is a Festival but we have no holiday for it,so don’t worry about your orders,we still work even it is Festival today,because Lantern Festival is not a public holiday.So don’t hesitate to send your orders if you would like to order Flexible PCB,Flexible Rigid PCB,if you would like to know more information pls visit our website:Best Technology Co, Limited

Mount Phoenix-Best Technology Team enjoy our first Working Day

Best Technology Team had came back on this Monday,after Chinese New year holiday,Best Technology Team went Climbing on our first Working day,but a part of our colleagues cannot go climbing due to they had a large number of work to do on first Working days after a long holiday.so you can not see all of our colleagues in the pictures as below.

PCB Team from Best Technology Co, Limited

Our unity and brotherhood, help each other on working and life

Best Technology Team on the top of Mountain

Best Technology Team on the top of Mountain

So now,everything goes well,and we can still offer good products,service and lead time after a long Chinese New year.Don’t hesitate to Contact us if any questions.Also,pls visit our website for more information if you would like to know Single Sided FPC,Dual Access FPC ,Double Sided FPC,Multi-Layer FPC ,Rigid-Flex,and you can send email or call to us if you would like get more information or help.

Chinese Spring Festival (Lunar New Year)

We’re glad to let everybody know that we’re going to have the Spring Festival, the Lunar New Year for Chinese people (Normally start from the 24th day of the twelve month, to the 7th day of the first month, of lunar calendar), from Feb 1st to Feb 14th and will resume on Feb 15th (Monday).

Everybody in our company have worked hard, efficiently, tried every effort to reach our 2015 target. And finally, we have exceeded our personal limitation and get a prosperous 2015.

Now let’s have a good rest, relax ourselves, enjoy the happy time with family, friends. Thanks for their supporting that everybody in our company can work without worrying anything else.

We believe our team will be filled with more fresh energy after resume on Feb 15th. Let’s see how we can do, what supporting we will do for you, whatever you need is single layer flex circuit board, dual access flex circuit, double side fpc, multi-layer flex circuit, or rigid-flex circuits, we will always treat you as the VIP of Best Technology, even it is only 1 pcs prototype. Where you are on the Earth, our replies always come in reach you within 12 hours!

Best Technology Attend 2015 Shenzhen International Marathon

Best Technology team have enrolled 2015 Shenzhen International Marathon and finally some of us lucky enough to get the ticket to attend the Marathon, and finished it successfully!

More important is: They’re happy in joining that sport, enjoying the atmosphere. At the same time, they challenged themselves! After joined the Marathon, they spent more time on exercise every week, even sometimes felt very tired after in the evening. After that, they feeling more powerful!

2015-Shenzhen-Marathon.

2015-Shenzhen-Marathon.

Lily & Peter after Marathon

Lily & Peter after Marathon

Best Tech Team members at 2015 Shenzhen Marathon

Some of Best Tech Team members at 2015 Shenzhen Marathon

Wish everybody more happy, more healthy in 2016! And remember we always to be your most reliable partner of flex circuits, rigid-circuit board in China!

Company New Video of Flex Circuit, PCB & PCBA Launching Now!

Good news! Our company Video of Flexible circuits board, PCB & PCBA is launching now! You can see our team member, facility, production capability (includes Flexible Circuit, FR4 PCB, Metal Core PCB, Ceramic PCB, SMT (PCBA), to see how we continue to improve ourselves, to provide best service to our customers.

Please watch the following video on YouTuBe if you cannot open the above video.

I believe you will always remember that Best Technology will be your best choice of Flexible Circuit, FR4 PCB, Metal Core PCB, Ceramic PCB, SMT (PCBA) in China!

Please contact us today for your Flexible Circuit and other rigid circuit board inquiry!