Quality Standards for PCBA Processing
When accepting PCBA products, it is crucial to evaluate various factors to ensure quality. Below are the key acceptance criteria for PCBA processed items:
1. Inspection Environment
- Temperature: 25±3 degrees Celsius
- Humidity: 40-70% RH
- Appearance evaluation conducted under a 40W fluorescent lamp from 1 meter away
2. Sampling Level
- Adhere to the GB/T 2828.1-2003 level II inspection one-time sampling plan
- AQL values: CR: 0, MAJ: 0.25, MIN: 0.65
3. Inspection Equipment
Ensure the following inspection equipment is available:
- BOM list
- Magnifying glass
- Feeler gauge
- Patch location map
4. Acceptance Criteria
When inspecting PCBA products, pay attention to the following criteria:
- Reverse: Ensure the polarity mark on components aligns correctly with the PCB.
- Excessive Solder: Check for proper solder joint height and contact with component body.
- Air Welding: Verify well-formed solder joints between component pins and PAD.
- Cold Welding: Ensure complete reflow of solder paste for shiny joints.
- Insufficient Components: Confirm correct placement of components as per BOM list.
- Damage Inspection: Check for edge peeling and component damage.
- Blistering and Delamination: Monitor for any issues affecting electrical clearance.
By following these acceptance procedures diligently, the quality of PCBA processed products can be guaranteed. Prioritizing quality is key to thriving in a competitive market.
