Archive for the ‘SMT Technology’ Category

Welcome Customer John Mathew from India

Thursday, January 10th, 2019

On January 9, 2019, we had a visitor from India. Best Technology thanks for having such an excellent partner.

John talked a lot with our general manager Peter and the members of business development department. John brought the material of SMT for us and hope we can make SMT for him. He was satisfied with our company culture and signed his name on the company cultural wall after the meeting came to an end and we took a picture with the client in the office of Best Technology.

Signed the name on the wall

Signed the name on the wall

Took a picture in the office

Took a picture in the office

After that, in order to know more something about capability in manufacturing of us, a member of business development department–Tiffany accompanied John to visit our SMT and PCB factory. They got an exclusive factory tour of Best Technology’s factory.

John and Tiffany in SMT factory

John and Tiffany in SMT factory

John and Tiffany in the PCB factory

John and Tiffany in the PCB factory

The client was satisfied with our high-tech equipment during the visiting. As the professional vendor of printed circuit board and PCBA in China, we will always uphold the mission–to provide the most suitable products and the most satisfying service for customers.

3 Defects of Putting Nitrogen into Reflow Oven

Wednesday, January 9th, 2019

We have talked a lot about the defects of putting nitrogen into reflow oven before. Thus, today Best Technology would like to discuss some defects of putting nitrogen in to the reflow oven with you.

reflow oven

reflow oven

√ Nitrogen is very expensive.

√ If the heating effect is better, there will be tombstone effect happening on the resistance and capacitor. This effect is beneficial to most of components, but it will deteriorate the tombstone effect of the small chip.

√ Besides, the nitrogen will also increase the wicking effect of soldering tin, allowing the soldering paste along the fillet weld of the components to climb to a higher place. Maybe it is good for some fillet weld of components, but it is not friendly for some connectors. Because the fillet weld of connectors is the connected to other components. It will cause other problems if tin flows into these connections. What’s more, it will lead to short circuit if the tin climb to a higher place as the fillet welds of connectors are very closely.

PCB with components

PCB with components

Best Technology, a professional PCB solution provider, is always dedicated to catch up with times. Our unique technology and high quality products will give you a competitive supply of printed circuit board and PCB assembly and make your wearable devices more excellent. To learn more, contact us at 0755-29091601 or check our website: https://www.bestpcbs.com

5 Benefits of Putting Nitrogen into Reflow Oven

Monday, January 7th, 2019

The reflow oven is one of the indispensable equipments in SMT. Putting the PCB with components goes through the reflow oven then the solder paste adhering on the printed circuit board will melt. After the solder paste getting cold, the components will adhere to the PCB stably.

Picture of reflow oven

Picture of reflow oven

After you have learned something about reflow oven, have you ever know how to make the reflow oven work better? Here are 3 benefits of putting nitrogen into reflow oven listed as following:

√ It is able to make the surface tension of solder paste get smaller which is good for the components adhering to the PCB more easily.

√ It can decrease the oxidization in a certain. Because the nitrogen is a kind of inert gas which is hard to produce chemical compound.

√ Reducing the rate of void. Because the rate of void decreases with oxidation.

√ Nowadays, some manufacturers also develop to put nitrogen in wave soldering oven. It is able to decrease the speed of oxidation of liquid tin in the bath. As the slag of tin will be formed when the liquid tin contacts with air. After that, the slag of tin will adhere on the printed circuit board. If it happens to the connect between two spots of tin, it will cause short circuit.

√ It can increase the rate of tin feeding of pin components and then they will combine with the printed circuit board firmly.

PCB with components

PCB with components

Best Technology, a professional PCB solution provider, is always dedicated to catch up with times. Our unique technology and high quality products will give you a competitive supply of printed circuit board and PCB assembly and make your wearable devices more excellent. To learn more, contact us at 0755-29091601 or check our website: https://www.bestpcbs.com

The Application of AOI in Reflow Inspection

Monday, December 24th, 2018

Today, we continue to talk about AOI technology applied in the PCB manufacturing. The component mounting inspection is followed by the reflow inspection, if you would like to know more details, please click The Application of AOI in Component Mounting Inspection to know.

AOI can be divided into two types: preventing problem phase and finding problem phase. The inspections after solder paste printing and SMT belongs to preventing problem phase and the inspections followed by reflow soldering are finding problem phase.

In the back end inspection of reflow soldering, AOI technology is able to detect some problems as below:

√ whether the components are missed, deviated or skewed.

√ The defects of polarity.

√ Whether solder joints are correct.

√ Whether the solder paste is enough.

√ Whether there is short circuit in soldering etc..

The back end inspection of reflow soldering is the most prevailing choice for AOI now. Because all of the assembly errors can be found at this process, so that the quality of printed circuit boards are able to step forward to a higher level.

Best Technology is the premier expert in manufacture of PCB and PCBA. Our unique AOI testing technology and high quality products give you a competitive supply of printed circuit board and rigid-flex circuit board. To learn more, contact us at 0755-29091601 or check our website: https://www.bestpcbs.com/

The Application of AOI in Component Mounting Inspection

Monday, December 17th, 2018

In the previous articles, we have talked about PCB inspection and solder paste printing inspection. To find more information of the details, please check: The Application of AOI in PCB Inspection and The Application of AOI in Solder Paste Printing Inspection.

The component mounting requires high precision of equipment and the common defects including forgetting to mount the component, mounting the component in a wrong way, polarity reversal etc.. AOI technology not only can find the defects above, but also can check the connection dense spacing and the solder paste on the pads of BGA component.

 

Since the component mounting is followed by the reflow soldering, the testing after component mounting is usually called front end inspection of reflow soldering. However, it is meaningless from the perspective of quality guarantee. Because the defects can not be found in the reflow oven. The solder tin is able to correct by itself after melting in the reflow oven, so the the mounting displacement and solder printing status can not be detected on the substrate after soldering. In fact, the front end inspection of reflow soldering is incredible significant for quality guarantee as that the component mounting of all parts can be inspected before reflow soldering.

The alarm will be sent out if the defects are found by AOI technology. After that, the visual inspection will be carried out by the operator. If miss some components at this stage, it can be corrected by tweezers. After the visual inspection operator repaired the same problem for many times, he will ask the person who charge the production equipment to reconfirm whether the setting of the machine is reasonable. The feedback information is very helpful to enhance the production quality and it can improve it in a very short time.

Best Technology is the premier expert in manufacture of PCB and PCBA. Our unique AOI testing technology and high quality products give you a competitive supply of printed circuit board and rigid-flex circuit board. To learn more, contact us at 0755-29091601 or check our website: https://www.bestpcbs.com/

The Application of AOI in PCB Inspection

Monday, December 10th, 2018

AOI technology possesses the functions of PCB inspection, solder paste printing inspection, component inspection and assembly inspection after welding. In this article, we mainly talk about PCB inspection.

PCB Inspection

PCB inspection are mainly relied on the visual inspection combined with electrical inspection during the early PCB production. Best Technology, on the other hand, present many benefits of AOI testing to everyone. AOI testing is a popular choice due to the following features:

√ with the development of electronic technology, the wiring density of PCB is getting higher, which increases the difficulties in visual inspection.

√ Decrease the rate of mis-judgement.

√ Able to reduce harm to the health of inspector.

√ Save cost.

√ Avoid the electronic inspection technology can not inspect some defects.

PCBA AOI testing

AOI testing

In the process of printed circuit board manufacturing, there would be some defects on the substrate fabrication and copper clad. However, these defects are mainly produced after etching. By the way, AOI testing is usually used after etching and it is utilized to find out the missing or extra part on the rigid PCB.

Most defects can be found by AOI testing (excluding the missing inspection problem), but the main problem affecting its reliability is missing inspection. The dust produced in the processing of PCB could cause false warning, so the manual inspection must be carried out after using AOI testing to detect the defects.

Best Technology is the premier expert in manufacture of PCB and PCBA. Our unique AOI testing technology and high quality products give you a competitive supply of printed circuit board and rigid-flex circuit board. To learn more, contact us at 0755-29091601 or check our website: https://www.bestpcbs.com/.  After PCB inspection, we will talk about solder paste printing inspection in the next article, if you would like to know more, please click The Application of AOI in Solder Paste Printing Inspection

 

UK Customer Visit Best Technology on Aug 9th, 2018

Friday, August 10th, 2018

It is quite a hot day Aug 9th, 2018. We have our nice UK customers visit us on such hot day. That’s really appreciated.
Both of them are very easygoing, we started to discuss the capability to manufacturing the 14 Layer PCB, customer were concern the impedance control well as well as other specification on the board such as the thickness of the immersion gold. Except FR4 PCB, We also showed other kinds PCB we made to customer, such as Rigid-flex circuitFPC, metal core PCBCeramic PCB , as well as some  special PCB,  Heavy copper PCB High Tg PCB,   PCB assembly  products.

Best-Technology-Meeting-room
Picture1:Best-Technology-Meeting-room

After a short meeting in our office, we bring customer to see our PCB Manufacturing Production Line.
Firstly we showed customer our different Tests Equipment including Impedance Tester, Copper Thickness Tester, Gold thickness Tester, etc.

Best-Technology-Tester-Equipments
Picture2:Tester-Equipments

And then we bring customer to see the different process for how to make the PCB.
Developing Process

Developing-Process
Picture3:Developing-Process

Drilling Process

Drilling
Picture4:Drilling

E-Testing Process

E-testing
Picture5:E-testing

After that, we go to our QA line to showing customer how we do the board inspection before we send out the PCB to our customers.

Best-Technology-QA-process
Picture6:QA-process

Customer was very happy and satisfy with everything they see in our PCB Plant.

Photos-in-Best-Technology-office
Picture7:Photos-in-Best-Technology-office

Wish next time we’ll have chance to have lunch or dinner with customer to talk more.

The 12th Anniversary Celebration

Wednesday, July 11th, 2018

How time flies!

June 28th is the 12th birthday of Best Technology.

 

On this special day, we got together and had a big party to celebrate the successes of a year gone by and prepare for hard work to be rewarded in the new year.

When we think of yesterday, we never forget the sales amount is only $8,000.00 in 2006, but it will be around $8,000,000.00 this year.

Thanks to founder Peter and other member’s hard work, Best Technology keep growing day by day, and reach such a great achievements by far.

peter telling

Peter was telling us why we can make it.

The reasons are:

  1. We have rich experienceto manufacture Metal Core PCB (MCPCB), ceramic PCB and other kinds of PCBs, esp on some special boards such as heavy copper PCB (up to 30OZ), extra thin PCB (0.1-0.3mm), Rigid-flex circuits, so customers always only need to use us to meet all her different requirements of circuit boards.
  2. We have our own raw material factory for MCPCB, we can control the quality from sourcing the material.
  3. We can provide one-stop service(Manufacture PCB, source components and do SMT).
  4. The most important reason is we are alwayshold on to our mission: to provide customer the most suitable product and most satisfied services.

cheers

Picture:Cheers

We are not only a best team, but also a harmonious family, we are together to fight for a better future in the coming 12 years.

Welcome Israel Friends visit us

Friday, April 27th, 2018

In the morning of April 24th, 2018, our customer from Israel visited our company. They are very nice and easygoing.

Firstly we had a short meeting in our office to discuss some PCBA projects and component, also we invite them to see our company’s video, which they know more about our capability on PCB, Rigid-flex circuit, FPC, metal core PCB, Ceramic PCB and lead time for different circuit boards.

 

After that, we moved to our SMT plant, where is only 15 minutes far from our office.

In our PCB Assembly plant, we show customers PCBA (SMT) process: First put PCB on Auto-loading machine, then transfer to Auto-Solder-paste-printer, after than go to the next step of components pick & place by SMT machine, after visual checking, board will go throw to reflow oven, QC will check each piece of board after reflowing and then do function testing, or move to AOI process to make sure all components are on the correct position and direction, as well as X-ray testing for the boards with BGA.

 

Each step was monitor and operators are following up with the SOP, to make sure quality is always controlled, and customer are interesting in how we test the assembly boards using testing fixture.

 

 

Customer is very happy with our SMT procedure and become more confident in placing more circuit board and PCBA order with Best Technology. After the meeting, we have a quick but delicious Chinese lunch together. And we will visit that customer in the end of May and believe by that time, we can do more things together, as well as good memories with each other.

Appreciate again for their valuable time to visit us, that’s our great pleasure to have that forenoon with them. Look forward seeing them again in Israel in the end of May.

We always welcome customer to visit us, so that they can know about what we can make, not only providing various types of printed circuit board, but also always supporting customer best service with good price.

 

New Automatic Solder paste Printer Adopted in SMT & PCBA

Thursday, August 25th, 2016

Great news! We (Best Technology) had adopted a new Automatic Solder paste printer for SMT /PCBA since Aug 25th, 2016. We use “G5” which is No. 1 brand in domestic market, made by a Chinese company, the repeated position accuracy is +/-0.01mm, and printing accuracy is +/-0.025mm.

Everybody know the most important element which will affect the quality of SMT /PCBA is the solder past printing quality. Excellent solder paste printing is the base for excellent quality of final SMT /PCBA quality, esp. for the small components such as SMD Chips with small size as 0402, 0201, 01005; IC with small pitch package such QFN, LGA, BGA; Connector with 0.25mm, 0.3mm, 0.40mm pitch.

Here are some pictures of new Automatic Solder paste printer.

Auto Solder Paste Printer

Auto Solder Paste Printer

Auto Solder Paste Printer printing the board

Auto Solder Paste Printer printing the board

Auto Solder Paste Printer with PCB printing

Auto Solder Paste Printer with PCB printing

PCB with solder paste

PCB with solder paste

Welcome customers release more SMT /PCBA orders to us. To learn more about Automatic Solder paste printer, or our SMT /PCBA service, please contact us right now!