pcb factory

pcb factory JWX PCB+PCBA
TEL and WA:+86 13923639598
E-mail:[email protected]
www.jwx-pcb-pcba.com Hello everyone, my name is Zeng Peng.

I have been working in the PCB industry for nearly 20 years. Our company specializes in the R&D and production of PCBs and PCBA. We offer fast turnaround times of 3-7 days and a monthly production capacity of 80,000 square meters. We have accumulated substantial technical expertise and experience within the industry. We welcome you to learn more about us and explore potential collaborations.

16/03/2026

Final step: packaging.
Once packaged and placed in cardboard boxes, apply the labels and they're ready for shipment. 😀
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16/03/2026

What is PCB testing?
The PCB testing process is a critical quality control step in PCB manufacturing. It is used to verify whether the electrical performance of the circuit board meets design specifications. By using professional testing equipment, continuity, short circuits, open circuits, and impedance are thoroughly inspected to ensure each PCB delivers stable and reliable performance before shipment, reducing potential risks during assembly and end use. 😀
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16/03/2026

What is flying probe testing?
Process 9:
PCB Flying Probe Test Process Introduction
Flying Probe Test is an electrical testing process in PCB manufacturing. It is mainly used to detect open circuits, short circuits, wrong connections, and missing connections, ensuring the reliability and stability of the finished circuit boards.
Working Principle
The flying probe tester uses multiple high-speed movable probes to contact PCB pads or test points directly. No dedicated test fixture is required. The system performs point-by-point electrical scanning and testing based on design data (Ge**er / Netlist) and automatically determines pass or fail results.
Process Features
No test fixture required, reducing tooling cost
Ideal for prototypes, small-batch, and high-mix production
High testing accuracy, suitable for fine-line PCBs
Flexible programming and fast turnaround
Main Test Items
Open circuits
Short circuits
Wrong or missing connections
Network connectivity issues
Application Scope
Prototype PCBs
Small-batch, multi-variety orders
High-density, HDI, fine-line circuit boards
Process Value
Flying probe testing is commonly used as a critical quality control step for semi-finished or finished PCBs. It effectively reduces defect rates without additional fixture costs and ensures stable and reliable product quality before shipment.
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16/03/2026

Step 8
What is PCB V-notching?

PCB V-notching (V-groove/V-creasing) is a technique that cuts a ‘V’-shaped groove along predefined separation lines on the PCB surface. This process enables sheet-form circuit boards to be separated easily and rapidly after production. It is widely employed in mass production and sheet-form PCB design.话题标签 话题标签 😀

16/03/2026

What is a circuit board roasting board?
Process 7: PCB Routing (Depanelization) Introduction
Routing is the 7th process in PCB manufacturing, mainly used to separate large production panels into individual finished boards. Using CNC high-speed routers to precisely mill along the preset outline path, it ensures accurate dimensions, smooth edges, and minimal mechanical stress, making it especially suitable for complex shapes and precision boards. After processing, dimensional tolerance and edge quality are inspected to ensure the boards can smoothly enter subsequent assembly processes.





16/03/2026

What is text printing? 😀
Step 6: PCB Silkscreen Printing
(Legend Printing)
PCB silkscreen printing, also known as legend printing, is the 6th key process in the PCB manufacturing workflow. This process is carried out after the solder mask process and involves printing text, symbols, and graphics onto the PCB surface to identify component locations, orientations, and circuit functions.
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16/03/2026

😀 What is the Solder Mask Process?
Solder Mask Process in PCB Manufacturing
The solder mask process is a crucial step in the PCB manufacturing process. It involves the application of a protective layer of polymer to the surface of a PCB, covering the copper traces and pads. This layer serves several essential functions:
Protection: It prevents oxidation and corrosion of the copper traces, helping to extend the lifespan of the PCB.
Insulation: The solder mask provides insulation between different copper traces, reducing the risk of short circuits and preventing electrical interference.
Preventing Solder Bridges: It helps to control the placement of solder during assembly by preventing the solder from flowing onto unwanted areas, such as between closely spaced pads.
Aesthetic Improvement: The solder mask layer is typically green (though it can be any color), giving the PCB a neat, uniform appearance that is easy to inspect visually.
Steps in the Solder Mask Process:
Cleaning the PCB: The PCB is thoroughly cleaned to remove any dust, oil, or other contaminants that could affect the adhesion of the solder mask.
Applying the Solder Mask: A liquid polymer solder mask is applied to the entire PCB surface. This can be done using various methods, such as screen printing or photoimaging.
Curing the Solder Mask: The PCB is then cured under UV light to harden the solder mask layer, making it durable and resistant to further processes like soldering.
Etching or Exposing: In the case of photoimaging, the solder mask is exposed to UV light through a photomask, where unwanted areas are washed away, leaving behind the desired pattern.
Final Inspection: The final step involves a thorough inspection to ensure that the solder mask is applied correctly, with no defects such as bubbles, misalignment, or areas of missing coverage.
Benefits of the Solder Mask Process:
Improved Reliability: By protecting the copper traces from damage and preventing solder bridges, the solder mask ensures the long-term reliability of the PCB.
Cost-Effective: This process prevents defects during assembly, which can lead to costly rework or replacements.
Customization: The solder mask process can also be used to create custom designs on the PCB, such as logos or markings, improving branding or traceability.
In conclusion, the solder mask process is a vital step in the production of reliable and high-quality printed circuit boards, ensuring durability, electrical performance, and assembly efficiency.
Let me know if you'd like further adjustments or details!
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