Overview of Network equipment PCBA
tv-mainboard-assembly is a functional unit completed after the welding, assembly and testing of components on the basis of a PCB. It directly determines the performance and reliability of electronic devices and is widely used in the entire process of various electronic equipment.
Network equipment PCBA Key control points for production process
1. Control of solder paste: Store at low temperature, reheat and stir, control printing accuracy, and prevent missed printing and continuous soldering.
2. Soldering control: Verify the position of the components, ensure the soldering accuracy, and prevent any errors or omissions.
3. Return soldering control: Precisely control the heating curve to prevent false soldering and damage to components.
4. Anti-static / Cleaning / Inspection Control: Full-process anti-static measures are implemented. Cleaning is free of residue. Each process undergoes strict self-inspection and mutual inspection.
Core Components of Network equipment PCBA
1. Basic Carrier: PCB (single layer/double layer/multi-layer/HDI), providing installation and interconnection support for components.
2. Core Components: Passive components (resistors, capacitors, etc.), active components (chips, ICs, etc.), connection components (connectors, etc.), auxiliary components (fuses, etc.).
3. Auxiliary Materials: Soldering materials (solder paste, flux), fixation materials (thermal conductive glue, insulating glue)
Core Production Process of Network equipment PCBA (8-stage Simplification)
1. PCB Incoming Inspection (IQC): Screening for quality issues such as PCB circuits, hole diameters, and surface conditions.
2. Incoming Inspection and Material Preparation of Components: Verifying model parameters, categorizing and preparing materials to avoid wrong or damaged materials.
3. Solder Paste Printing: Uniformly applying solder paste on PCB pads, controlling thickness and accuracy.
4. SMT Assembly: Precisely placing components onto pads, controlling assembly accuracy.
5. Reflow Soldering: Melting solder paste at high temperature to achieve secure connection between components and PCB.
6. DIP Insertion Welding (as needed): Hand/automated insertion welding of components to ensure firm connection without short circuits.
7. Cleaning and Repair: Removing residual impurities and repairing short circuits, loose soldering, etc.
8. Finished Product Inspection (FQC) and Packaging: Inspecting appearance and functionality, packaging for anti-static and moisture-proof delivery.
