low volume pcb assembly is very important for a new product

For one new electronic production, engineer need to evaluate and make some test before they decide to make into volume production. Low volume pcb assembly is widely defined as sample production.

What is the main work one should do in low volume pcb assembly stage? Of cousre, the gerber file and bom list of the project should be finished by the designer. One should consider the cost of the project and choose the right material, size of the unit board and the components’ part no. As you know the pcb cost contain pcb price, components price and the assembling cost. Each aspect should be controlled before you make the low volume pcb asssembly job.


To be specific, pcb price is based on the material, unit size and special process you choose for the board. Usually we would choose normal material with cheaper process,such like KB FR4 material with HASL surface treatment. For the component part, can used some cheaper and inglorious brands for the simple devices, such as capacitors,resistors and connectors. The assembling part is based on the components you choose. This part would be effect too much. So if you control these three parts well for the low volume pcb assembly job. You would make it in best cost.


The test job of the low volume pcb assembly would be very important. We may call it functional testing. So it is better to make functional testing before you make into volume production so that you can cut down your risk. We always like to make some functional testing before volume production. I think that is very important.


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Typical Types of PCB

As we know there are many standards to specify PCB, such as material, function, construction and so on. Now here we classify PCB according to construction. There are typically three categories: Single Board, Double Sided Board and Multiple Sided Board.

Single Board

All PCBs have two sides, top and bottom. But single sided PCB means only one side has the conductive circuit that used to assemble components. The other side has no circuit. It was born at early 1950s, generally applied at radios, washer, automatic sales machine and all kinds of home or commercial machines. The biggest merit of single board is cheap but the design of circuit is demanding. Another thing is that it’s very easy to distinguish single sided PCB.

Double Sided Board

Now we may have clear idea what is double sided PCB. That means both side of PCB have conductive circuit, which have lots of plated vias and PADs on them. Double sided PCB is widely used in electronic products. They will be used to CD player, mouse, fan, TV and so on. Compared to single board, double sided board are relatively complicated, so will be used at more advanced fields. Also, it’s easy to distinguish double sided PCB. Usually we could see circuit on both sides.

Multiple PCB

We could see also has circuit on both sides of multiple PCB. But the difference between double sided PCB is that see by side face of PCB, we will find multiple PCB material has some black horizontal lines. Multiple PCB is much more complicated and expensive than above two. Generally, there are three methods to manufacture multiple sided boards: PTH, Clearance Hole and Build Up. PTH is the mainstream of multiple sides board manufacture. High reliability and assembly density are some merits of it. So it can be normally used at demanding high reliability and technology field, such as military, aerospace, medical machines, communications and so on.

Conclusion

Wonderful PCB (HK) Limited is a professional manufacturer for PCB for more than 20 years. If anything else doesn’t understand, welcome to inquiry to wonderful22@wonderfulpcb.com