Circuit Board PCB Assembly Manufacturing Process

Electronics has been applied to every aspect of our lives, we all know circuit board PCB is the core of those electronics, but, do you know how it’s made, and functionally applied for your electronics devices? or how to perform the process of PCB Assembly Manufacturing?


The Process Of PCB Assembly Manufacturing

1)Solder Paste Printing By Stainless-steel Stencil

Firstly we need to use stainless-steel Stencil to print solder paste on the pads of PCB boards. solder paste is only applied for those parts which need to be mounted, That’s what Stainless-steel stencil is used for.

2) SMD Mounting Process

After printing solder paste on the boards, we’ll need to set up the data and programme of SMT machine as per pick&place files, which ensures those SMD components are mounted exactly where they are automatically.

Traditionally, this process was executed by manual, in which assemblers had to pick and place components by has really low efficiency with too many mistakes by workers.


3) Reflow Oven Process

Reflow Oven is for solidifying all SMD components on the board, those boards come

with conveyor belt after pick and place process, during going through Reflow Oven, solder paste will be melted and cooled, which will solidify all SMD components on the pads, that’s how SMD components are mounted on the boards

4) Initial Inspection&Through-Hole Soldering

After finishing the mounting of SMD components, boards need to be inspected by workers to ensure there’s no missing and bad soldering of SMD parts,then, there’s still PTH parts remained to solder.the process of PTH parts soldering are often done by manual,which needs professional and experienced workers to do in case there are pins of components which are not soldered and connected electrically, as well as the issue of orientation.

5) Final Inspection

After all SMD and PTH parts soldered in the right way, the final inspection would be the most important way to have good control of quality and ensure the quality of products.

Three ways to inspect: Visual inspection by manual, AOI(Automated Optical Inspection), X-ray…

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The Importance Of Multi-layer Board

As the development of electronic technology, multi-layer PCBs has been widely applied for all kinds of electronics products to satisfy the more complicated requirement in function.

Multilayer PCB Applications

So where is it used, the answer is anywhere, for example?

Consumer Electronics, Aerospace, Automotive, Military and Defense, Computer Electronics, Telecommunications, Industrial, Medical Devices are perfect applications for multilayer PCBs.

What Are The Advantages Of Using Multi-Layer PCB

There are numerous advantages to utilizing multilayer PCBs, The most obvious of which is the size of the PCB. Because of their design, multilayer PCBs are inherently smaller than traditional PCBs.

Multilayer PCBs generally provide better quality than normal PCBs

This multilayer PCBs invaluable for small electronics.

What Are The Disadvantages Of Using Multi-Layer PCB

Such as high cost, long production cycle, high requirement of the testing method. such issues as crosstalk and impedance problems.



Multilayer PCB Manufacturing Process

Producing PCB is a complex process of many steps. This overview covers the most important steps When producing a multilayer PCB.

Pre Production Engineering-Material issue-Inner layer-Inner layer etch-Inner layer AOI-Lamination-Drilling-Plated Through Hole-Panel plating-Pattern plate-plating-Outer layer etch-Outer layer AOI -Via hole plugging-Solder mask-legend Printing-Surface finish-Profile- Electrical Test-Final inspection-Packaging


How To Reduce The Cost Of Multilayer Boards

With the cost down of electronic equipment, everyone wants cheaper and cheaper prices.

Before designing, you can consider the following design specifications to reduce your cost.

It is more economical to manufacture a circuit board with even layers rather than an odd number of layers.

If your design permits it, consider building a PCB with fewer layers.

Vias that are blind or buried will end up costing more.

Round through-holes, as compared to slotted or square ones reduce the overall cost and time.

Relaxed tolerances cost less compared to tight tolerances.

The lower the width and spacing of conductors, the higher the cost.

The overall PCB costs can be reduced drastically by manufacturing them in bulk quantities.

Ensure that the PCB layout is in perfect condition in the designing stage. A wrong design will ruin the PCB and increase your costs.

PCBASTORE for Multilayer PCBA Manufacturing

PCBASTORE Services has a wealth of expertise in the manufacture, and supply of multi-layer PCBs. If you require multilayer PCB manufacturing or assembly, please leave a reply here. or contact us and we will do our best to assist you!

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Is it easy to do PCB Online purchase?

Is it easy to do PCB Online purchase?

When we need to purchase some goods, we will expect it can be very easy to finish, then it can save much time for us, time is really very important, save time means can do many other wonderful things.

As an electronic engineer, after we finished our PCB design, I will expect to get the designed board work at once, also we will need to know its fabricate too. Traditionally method is to find suppliers in Alibaba, exhibition, or Google, after finding the supplier contact method, then contact them and send them your files, and wait for their offer. It hears some complicated and will take much time to get a price.

It is lucky I discover some website that can calculate the price online, not need wait sales reply, and can get the basic cost in a very short time.

Below is a company I find, it is easy to follow and it will very helpful for you!

1.Join free or sign in at this website PCBASTORE

2.Calcuated the price online

3.Upload PCB file and bom list, then they will check your file, and approved it online, then you can finish the payment online, they will also update your order process when your board in fabrication, and send you board picture and shipping invoice for your checking before delivery, it is really a nice website.

Hope our share will be helpful for you!

If you are interested in getting your PCB cost at once, welcome to try to use PCBASTORE at once, if you have any other problems, you can also contact the sales directly.