PCBA sampling is a crucial step in the process of circuit board manufacturing. The PCBA sampling process is a key factor in determining the ability of PCBA design and product quality. This article will provide a detailed introduction to the entire process of sampling, including the materials, processes, and precautions required for PCBA sampling. After reading this article, you will learn how to better master the PCBA sampling process.

PCBA processing and sampling process

1. Materials required for PCBA sampling

Before starting the PCBA sampling process, it is necessary to prepare some necessary materials and tools. The following are the materials and tools required for sampling:

-PCB board (bare board)

-Components

-Steel mesh

-SMT machine

-Welding machine

-Soldering iron

All these materials and tools must be of high quality to ensure the quality of PCBA.

2. Steps of PCBA sampling process

The following are the detailed steps of the PCBA sampling process:

Step 1: Plan the PCB board and generate a Gerber file. Then send the Gerber file to the PCB manufacturer to produce the bare board.

Step 2: Purchase all necessary components. All components must meet design specifications and be reliable.

Step 3: Attach the components to the PCB board through a steel mesh.

Step 4: Use a mounting machine to accurately attach all components to the PCB board. During this process, it is important to pay attention to whether all devices are properly attached. Also, check whether the positions of all components are correct and whether there are any abnormal errors.

Step 5: Use equipment for welding. Manually solder component pins by using soldering iron.

Step 6: Use a soldering machine to perform hot dip soldering or wave soldering on the components.

Step 7: Conduct electrical testing. You can use Domitt or other electrical testing tools to test and ensure the correct functionality of PCBA.

Step 8: Conduct functional testing. Run PCBA to ensure its functionality meets expectations.

3. Precautions for PCBA sampling process

To ensure the success of the PCBA sampling process, the following are some precautions to note:

-Choose high-quality PCB boards and components to ensure product quality.

-Accurately plan the arrangement of circuit boards.

-Ensure accurate assembly of components on the PCB board.

-Ensure the use of high-quality SMT and soldering machines for component bonding and soldering processes.

-Ensure accurate orientation and good contact of PCBA.

-Before conducting electrical testing, confirm that the components have been correctly installed and require functional testing.

     In short, PCBA sampling is a very important step in circuit board manufacturing. The quality of the sample affects the quality of the entire product. Ensure that PCBA sampling is carried out according to the correct process, providing assurance for product quality.

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1. Strength guarantee

▪  SMT workshop: With imported SMT machines and multiple optical inspection equipment, it can produce 4 million points per day. Each process is equipped with QC personnel who can closely monitor product quality.

▪  DIP production line: With two wave soldering machines, there are more than ten experienced employees who have worked for more than three years. The workers are highly skilled and can weld various plug-in materials.

2. Quality assurance and high cost-effectiveness

▪  High end equipment can attach precision shaped parts, BGA, QFN, and 0201 materials. Sample patches can also be used, and bulk materials can be placed by hand.

▪  Both samples and large and small batches can be produced, starting from 800 yuan per sample and starting from 0.008 yuan per batch, without any start-up fee.

3. Rich experience in electronic product mounting and welding, stable delivery

▪  Accumulated services for thousands of electronic enterprises, involving SMT chip processing services for various types of automotive equipment and industrial control motherboards. The products are often exported to Europe and America, and the quality can be recognized by new and old customers.

▪  Delivery is on time, materials are complete, and normal shipment takes 3-5 days. Small batches can also be expedited for the same day shipment.

4. Strong maintenance ability and complete after-sales service

▪  Maintenance engineers have rich experience and can repair various defective products caused by SMD welding, ensuring the connectivity of each circuit board.

▪  24-hour customer service personnel are ready to respond and resolve your order issues as quickly as possible.