Monthly Archives: November 2016

How to calculate the begin turn time of PCBA?

In other words, When does the turn-time begin? If you have asked some PCBA companies, you may know different PCBA plants have differing calculate methodturn time of PCBA. That’s the reason why so many new PCBA engineers confuse this definition. Complexity effecte PCBA turn time As we know, there were many PCBA degrees. Simple PCBA […]

Do you know Panels PCBA manufacture process

The reason why need to penalize the PCBA board? There were many of reason support to panels the PCBA board. Here we have listed some reasons. Consider panelized method in PCB manufacturing process As we also fabricate PCB for our customers. This means we will consider panelization solution at the beginning. Usually 4MCPCB PCB designers […]

Break-away Rails in PCBA project

Why we discuss Break-away Rails? PCBA process is very complex, due to it’s have many steps and you should take more care in each step. Then most of PCBA plants were small companies. And don’t have much time and money to strict PCBA testing standards. This is the biggest reason why those PCBAs have a […]

Introduce bridging connect method in PCBA project

Why we discuss bridging connect method in PCBA project From most PCBA engineer experience, how to connect components may the most complex item. Special use bridging connect method, almost all new PCBA learner don’t know. So, 4MCPCB want to more people clear to bridging connect method. Why we have to consider bridging connect method? A […]

How to handle defects of PCBA projects?

Previous post we have discussed Three common sense of Automotive PCB market 2017, This post we are going to discuss how to handle defects of PCBA projects. Why we should discuss the defects of PCBA projects? First of all Frank wants to clear that discuss this issue is ensuring customer can get high quality PCBAs. […]

How to calculate a turn time of PCBA project?

The reason why discuss turn time of PCBA project Now there was more and more start-up choose a PCBA supplier from China. Most of them don’t know much PCBA and it’s turning them. Then there were some other reasons from PCBA plants. Special in some small PCBA factories, have it’s own PCBA turn time calculate […]

Why big brands choose 4MCPCB Assembly?

There are many customers choosing our PCBA service, and have numerous reasons. In this paper, we are going to discuss why so many big brands choose 4MCPCB. Specialized in the PCBA field for many years Even we are new player in PCBA market, but 4MCPCB have many experienced engineers. Those rich experience makes 4MCPCB more […]

80 percent PCBA engineers have know breakdown voltage

The definition of breakdown voltage The breaddown voltage is toward insulator and dielectric. If you know some basic electronic theory, ionization and conduction take place in a gas or vapour. So, as strong currents through insulator or dielectric may be ruptured. Breakdown Voltage of insulator This part we go deep in breakdown voltage of insulator. […]

Two types of Branched Conductor

The reason why we discuss branched conductor In this paper, we are going to discuss branched conductor. This is very professional PCBA glossary, most of the new PCBA designer doesn’t know. So, Emma wants to more guys know branched conductor definition. Normal branched conductor introduce First conductor is connected electrically two or more leads to […]

Bow V.S. Twist

You should know three factors of Bow The bow is a deviation. Usually the deviation from the flatness of the board characterized. And the characterized is about foughtly cylindrical or spherical curvature. Above three factors are basic points of Bow. Then, if the board is rectangular, the bow calculus method is different. Because its four […]