PCBA processing requires aging tests that can be performed repeatedly, simulating functional operations and load conditions to assess the equipment’s stability. Additionally, it is important to wear anti-static gloves, ensure that the meter is properly grounded, and cover the work surface with an anti-static rubber mat beforehand. Now, let me provide you with further details.
1. PCBA Processing Reliability Test
1. Aging
Position the PCBA board, which has passed the functional test, under controlled temperature and humidity conditions. Conduct repeated power cycling…
1. **Simulation Function Operation**
The simulation function operation, load operation, and similar processes require checking the stability of the PCBA board through 24 to 72 hours of continuous operation. Due to the lengthy nature of the aging test, it isn’t feasible for large-scale batch operations. In practice, the aging test is performed on a sample basis, and the overall yield rate for the batch is determined by the pass rate of these random tests.
2. **Vibration Test**
Many PCBA boards encounter issues during transportation, such as component detachment and pad cracking. The vibration test effectively simulates transportation vibrations in a laboratory setting, gradually revealing hidden risks in the soldering process. This approach minimizes batch welding defects and enhances the overall yield rate upon delivery. Currently, there are specialized simulated motion vibration workbenches available on the market, with prices around 5,000 yuan.
3. **Surge Impact Test**
While PCBA processing typically operates under normal voltage, occasional surges can introduce defects. Many circuit designs may not adequately address the detrimental effects of sudden voltage or current spikes. Therefore, conducting sampling surge impact tests prior to mass production of PCBA is essential.
4. **PCBA Processing Precautions**
1. Warehouse personnel should wear anti-static gloves when handling materials and performing IQC testing, ensure meters are properly grounded, and use anti-static rubber mats on work surfaces.
2. During operations, utilize anti-static work surfaces and containers for components and semi-finished products. Ensure that soldering equipment is grounded, and use anti-static soldering irons. All equipment must be tested before use.
3. When PCBA passes through the furnace, some plug-in components may tilt due to solder flow affecting their pins. It is essential for repair personnel to make necessary corrections after soldering.
4. When soldering speakers and batteries on the PCBA, take care not to use excessive solder, which could lead to short circuits or dislodged peripheral components.
5. PCBA substrates should be neatly organized; bare boards must not be stacked directly, and electrostatic bags should be utilized for stacking.
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1. PCBA Processing Reliability Test
1. Aging
Position the PCBA board, which has passed the functional test, under controlled temperature and humidity conditions. Conduct repeated power cycling…
1. **Simulation Function Operation**
The simulation function operation, load operation, and similar processes require checking the stability of the PCBA board through 24 to 72 hours of continuous operation. Due to the lengthy nature of the aging test, it isn’t feasible for large-scale batch operations. In practice, the aging test is performed on a sample basis, and the overall yield rate for the batch is determined by the pass rate of these random tests.
2. **Vibration Test**
Many PCBA boards encounter issues during transportation, such as component detachment and pad cracking. The vibration test effectively simulates transportation vibrations in a laboratory setting, gradually revealing hidden risks in the soldering process. This approach minimizes batch welding defects and enhances the overall yield rate upon delivery. Currently, there are specialized simulated motion vibration workbenches available on the market, with prices around 5,000 yuan.
3. **Surge Impact Test**
While PCBA processing typically operates under normal voltage, occasional surges can introduce defects. Many circuit designs may not adequately address the detrimental effects of sudden voltage or current spikes. Therefore, conducting sampling surge impact tests prior to mass production of PCBA is essential.
4. **PCBA Processing Precautions**
1. Warehouse personnel should wear anti-static gloves when handling materials and performing IQC testing, ensure meters are properly grounded, and use anti-static rubber mats on work surfaces.
2. During operations, utilize anti-static work surfaces and containers for components and semi-finished products. Ensure that soldering equipment is grounded, and use anti-static soldering irons. All equipment must be tested before use.
3. When PCBA passes through the furnace, some plug-in components may tilt due to solder flow affecting their pins. It is essential for repair personnel to make necessary corrections after soldering.
4. When soldering speakers and batteries on the PCBA, take care not to use excessive solder, which could lead to short circuits or dislodged peripheral components.
5. PCBA substrates should be neatly organized; bare boards must not be stacked directly, and electrostatic bags should be utilized for stacking.
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