PCBA Production Steps - Leading PCB Assembly Manufacturer

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What is PCBA Production?

An unassembled circuit board without any soldered electronic components is called a printed circuit board. After electronic components are soldered to a board, the term PCBA, PCA, or PCB assembly describes the board. There are two types of printed circuit board (PCB) assembly instruments: manual and automatic.

Please be aware that circuit board assembly is not the same as the PCB production process. PCB design and PCB prototype fabrication are two of the many processes involved in PCB production. Soldering is the last step in getting a printed board ready for usage in any electrical device. Soldering a variety of active and passive electronic components onto it is the process. This assembly is made up of electronic components that vary in type, function, and intended use.

PCBA manufacture involves a number of processes. And to ensure the excellent quality of the finished product, they must all be completed correctly. We hope you find this tour inspiring as we take you through every part of the manufacturing process.

Step 1: Solder Paste Stenciling

The first step of PCB assembly is applying a solder paste to the board. In a professional PCBA line, a mechanical fixture holds the PCB and solder stencil in place. An applicator then places solder paste on the intended areas in precise amounts. The machine then spreads the paste across the stencil, applying it evenly to every open area. After removing the stencil, the solder paste remains in the intended locations.

Step 2: Pick and Place

After applying the solder paste to the PCB board, the PCBA process moves on to the pick and place machine, a robotic device places surface mount components, or SMDs, on a prepared PCB. SMDs account for most non-connector components on PCBs today. These SMDs are then soldered on to the surface of the board in the next step of PCBA process.

The device starts the pick and place process by picking up a PCB board with a vacuum grip and moving it to the pick and place station. The robot then orients the PCB at the station and begins applying the SMTs to the PCB surface. These components are placed on top of the soldering paste in preprogrammed locations.

Step 3: Reflow Soldering

Once the solder paste and surface mount components are all in place, they need to remain there. This means the solder paste needs to solidify, adhering components to the board. PCB assembly accomplishes this through a process called "reflow".