PCBAManufacturing process control and quality control
PCBAThe manufacturing process involvesPCBA series of process supply and manufacturing processes including circuit board production, component procurement and inspection, patch processing, plug-in processing, program burning, test aging, etc.
The production process is relatively long, so once an abnormality occurs in any link, it will cause a large number ofPCBABad, causing serious consequences. Therefore, control the entirePCBAThe manufacturing process is very important! The marketing department receivedPCBAAfter the order is placed, it is assigned to the production department, which then needs to hold a pre-production meeting, mainly forPCBAWe conduct process analysis on the data, evaluate and organize the customer's order requirements and design the first sample. This is often caused by insufficient pre-production analysis.PCBPoor design can easily cause a large number of quality problems, resulting in batches of rework and repair work. Therefore, production capacity analysis and evaluation must be conducted in advance before production to reduce unnecessary subsequent rework and repairs.
PCBAComponent procurement and inspection need to be strictly controlled. Purchase from manufacturers or large component merchants as much as possible, so as to avoid purchasing second-hand materials and components of poor quality. Quality inspection is required after purchasing returned materials. Our staff inspects, analyzes and checks the materials to ensure that the purchased materials meet the customer's requirements.
Before patching, it is necessary toPCBThe board undergoes a series of inspections such as whether there is bending, warping and repair lines; the reflow oven temperature test that the board can withstand; the steel mesh and the customerBOMWhether they are the same; whether the solder paste meets the customer's requirements; only after the above are confirmed to be qualified can the patch production be started.
During the plug-in process, the desktop needs to be kept clean and tidy, without foreign objects; you need to wear anti-static bracelets and gloves during operation to prevent static electricity and sweat from touching the components and affecting their solderability;PCBAThey cannot be stacked to avoid scratches and damage to components due to stacking collisions. They should be placed separately in specially configured brackets.
Program burning, you can ask the customer to provide the program, and after receiving the file, burn the program to the main control through the burnerICin order to verify the entirePCBAfunctional completeness.
PCBAAfter processing is completed, some customers will requirePCBACarry out aging and burn tests, mainly circuit tests, functional tests, temperature and humidity tests, drop tests, etc. After a series of tests are correct, they can be packaged and shipped.