PCB ASSEMBLY, PCB MANUFACTURING & ELECTRONIC ASSEMBLY SERVICE & ELECTRONICS MANUFACTURING COMPANY – HITECH CIRCUITS CO., LIMITED
As leading one-stop PCB Assembly services provider in China, Hitech Group offers high quality, cost effective, express PCB board products and provides PCB manufacturing, electronics assembly manufacturing, components sourcing, Box build assembly and PCBA testing services for our customers.
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For low volume PCB assembly projects, our quick turn PCB assembly delivery time goes from 8 hours to 48 hours when components are ready.
No matter you are an electrical engineer, a product designer, a system integrator or a maker looking for PCB fabrication and PCB assembly, or PCB manufacturing and assembly, or electronic assembly services (electronic PCB assembly) ,or a low cost PCB assembly house, Hitech Circuits PCB assembly team will be your perfect PCB assembly house in China.
WHAT IS PCB ASSEMBLY?
It’s the step in the manufacturing process in which you populate a blank board with the electronic components needed to make it into a functional printed circuit board. It’s these components that make a board into the circuit that enables an electronic product to function. PCB assembly typically takes place via one of two processes:
1. Surface-mount technology
SMT: SMT stands for “Surface Mount Technology“. The SMT components are very small sizes and comes in various packages like 0201, 0402, 0603, 1608 packages for resistors and capacitors. Similarly for Integrated circuits ICs we have SOIC, TSSOP, QFP and BGA.
The SMT components assembly is very difficult for human hands and can be time taking process so it is mostly done by automated pick and place machine.
2. Through-hole manufacturing
THT: THT stands for “Through hole Technology”. The components with leads and wires, like resistors, capacitors, inductors, PDIP ICs, transformers, transistors, IGBTs, MOSFETS are example.
The component has to be inserted on one side of PCB and pulled by leg on other side and cut the leg and solder it. The THT components assembly is usually done by hand soldering and is relatively easy.
PRINTED CIRCUIT BOARD ASSEMBLY TECHNIQUES
There are only two common PCBA techniques available for use by a PCB designer. The methods are:
1. Automated PCB Assembly Techniques
Generally, this technique employs the use of state of the art machines, which are fully automatic. For example, the surface mount components are worth positioning with the aid of an automated pick and place machine.
Again, reflow soldering is commonly for surface mount components usually done in a reflow oven. An automated solder stencil is also used to apply the solder paste on the PCB.
Finally, high tech inspection machines are used to confirm and check the quality of the PCBA. Some of which include: Automated optical inspection machine (AOI), X-ray inspection machines, etc.
Above all, due to the precise monitoring, control of soldering, no human input and versatile machines.
This technique ensures utmost efficiency, output consistencies, and limits defects.
2. Manual PCB Assembly Techniques
This method is favorite for use with through-hole parts, which needs manual placement on the board. Besides, with these through-hole parts, it’s advisable you use wave soldering. Note that in the through- hole assembly process, you need to place the components and electronics on the PCB.
After that, you use wave soldering to solder the leads. Typically, you will need an individual to insert a component into a marked PTH. Once done, transfer the PCB to the next station where the next person will be on standby tasked with fixing another part.
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