​What are the PCBA assembly processes?

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With the progress of China's manufacturing capacity, the PCBA industry has also ushered in a climax. In this article, FS Technology will explain to you what technologies Chinese PCBA assembly companies use in assembly.

What is PCB Assembly Process

As we all know, the operation of electronic products is inseparable from the printed circuit board, and PCB is its abbreviation. A PCBA board is assembled from a bare PCB board and electronic components. The bare board refers to the green board, and the electronic components are the objects soldered to the bare board. The bare board cannot function alone. The PCB manufacturing company draws the wiring on the bare board, and the electronic components are electrically connected according to the wiring to function. It can be said that the PCB board is a carrier, and the electronic components are the main body. More differences between PCB and PCBA can be found in FS Technology's blog post PCB vs PCBA .

The PCB assembly process refers to the process in which a turnkey PCB assembly company places components on a bare board through a series of assembly techniques. Generally, surface mount technology or packaging technology is used. That is SMT process and DIP. A qualified turnkey PCB assembly company has the most advanced and professional assembly machines that can work 24 hours a day.

Specific PCBA assembly process

FS Technology provides customized versions, that is, to manufacture suitable PCBA boards according to customer needs. Therefore, we will use different processes according to the size, number of layers, materials, and required functions of the circuit board. What are the pcba processing and assembly processes?FS Technology divides it into the following categories:

  • Single Side Mount
  • Single Side Mixed
  • Double Sided Mounting
  • Double-sided mixed
Single-sided mounting process

The single-sided mounting process is one of the simplest processes. Generally, the electronic components of this PCB assembly company are mounted components (SMD). FS Technology only needs to stick these components on one side of the pcb board.The specific process is as follows:

  1. Incoming Inspection
  2. Print
  3. Patch
  4. Reflow Soldering
  5. Cleaning
  6. Detect
Single-sided mixing process

Single-side mixing is more difficult than single-side mounting, but even so, most PCB assembly companies can complete the job. The single-sided mixing process refers to mounting different types of PCB components on one side of the bare board, and the components used include mounting and plug-in. The specific process flow is as follows:

  1. Incoming
  2. Detect
  3. Print
  4. Patch
  5. Reflow Soldering
  6. Cleaning
  7. Plugin
  8. Wave Soldering
  9. Cleaning
  10. Detect
Double Sided Mounting Process

The double-sided mounting process means that the components are all mounted components, and the components are mounted on both sides of the PCB board, commonly known as double-sided PCB boards.The specific mounting process is as follows:

  1. Incoming Inspection
  2. A side printing of pcb board
  3. Patch
  4. Reflow Soldering
  5. Flip
  6. PCB board B side printing
  7. Patch
  8. Reflow Soldering
  9. Cleaning
  10. Detect
Double-sided mixing process

The double-sided mixing process refers to components that are both mounted and plug-in, and components are mounted on both sides of the pcb board. This process is very difficult, and few turnkey PCB assembly companies in China can complete it. The specific process is as follows:

  1. Incoming Inspection
  2. A side printing of pcb board
  3. Patch
  4. Reflow Soldering
  5. PCB board B side plug-in
  6. Lead bend
  7. Flip
  8. B-side point patch glue
  9. Patch
  10. Drying
  11. Flip
  12. Wave Soldering
  13. Cleaning
  14. Detect

The above content is a simplified version of the pcba processing and assembly process. The specific processing process can be found in the FS technology blog. Here, FS Technology reminds practitioners in the PCB industry that the PCBA processing and assembly process is very complicated, but every process is indispensable, which directly affects the quality of the assembly. When your project requires a turnkey PCB assembly company, you need to investigate the company's comprehensive content, PCB manufacturing capabilities and assembly capabilities. FS Technology has been doing very well in the past ten years of work, especially the assembly. FS Technology focuses on smt patch proofing, PCB proofing, component procurement and other services. It can be said that it is the best turnkey assembly company in China.