Preparation work is crucial before mass production of PCBA, including circuit board design and verification, component procurement and confirmation, circuit board production process preparation, SMT process documents and production files, circuit board sample inspection and verification, etc.
1. Circuit board design and sample verification
Circuit board design review: Confirm that the circuit board design meets production requirements, including circuit layout, electrical characteristics, wiring rules, dimensions, etc.
Schematic review: Verify that the schematic is consistent with the circuit board design, and confirm that all component parameters and layouts meet the design requirements.
First piece sample production: Produce a small number of first piece samples and conduct functional testing, reliability testing, and performance testing to confirm that the design and production processes are correct.
Design manufacturability analysis: Conduct manufacturability analysis on the design to ensure that the designed parts can be produced smoothly and avoid problems in mass production.
2. Component procurement and confirmation
Bill of Materials (BOM): Ensure that the list of all components is prepared and consistent with the design drawings.
Component confirmation and inspection: Check the specifications, packaging, and quality certification of all components to ensure that the purchased components match the design requirements and have no quality issues.
Supplier communication: Communicate with component suppliers to confirm delivery time and quality assurance, ensure all components arrive on time, and avoid production delays.
3. Production process preparation
SMT SMT SMT process preparation: Confirm the settings, parameters, equipment maintenance, and other aspects of the SMT mounting machine.
Check the solder paste, surface mounting accuracy, and performance of the surface mounting machine to ensure the accuracy and stability of the mounting process.
Wave soldering and manual soldering preparation: Confirm the parameter settings of the wave soldering machine and manual soldering equipment, and prepare the soldering materials.
Production line preparation: Confirm whether the equipment on the production line is in good working condition, such as surface mount machines, reflow soldering furnaces, wave soldering equipment, etc.
Preheat and debug the equipment to ensure stable working conditions.
4. Process documents and production documents
Process flow document: Develop detailed production process flow documents, including specific operational requirements, testing standards, material lists, etc. for each step.
Testing standards and plans: Write detailed testing standards and plans, specifying testing items, testing methods, testing equipment, qualification standards, etc.
Production instruction manual: Prepare all necessary operation manuals and instructions for the production process to ensure that operators can accurately perform various tasks.
5. Sample inspection and verification
First article testing: Conduct first article testing to verify whether the appearance, size, electrical performance, etc. of the circuit board meet the design requirements.
Functional verification: Verify whether the PCBA meets the expected performance standards in actual use through functional testing, ensuring that all circuit connections are correct and components are working properly.
6. Production environment inspection
Environmental temperature and humidity control: Confirm that the production environment temperature and humidity are within the appropriate range.
Cleanroom inspection: Check the cleanliness of the workshop to ensure that the dust-free environment is suitable for precision assembly.
7. Quality Management and Inspection
Quality Control Plan: Develop a quality control plan to ensure quality monitoring during the production process, including online testing, functional testing, sampling inspections, etc.
First article inspection: Conduct strict quality checks on the first batch of produced samples to ensure they meet specification requirements.
8. Production time and output planning
Production plan arrangement: Develop a detailed production plan, confirm production cycle, output requirements, delivery time, etc.
Material procurement and inventory management: Reasonably arrange material procurement and inventory management to ensure sufficient material supply and avoid waste caused by excessive inventory.
