Operation flow of feeding ratio 1. After receiving the production plan, the production foreman arranges production according to the order on the production plan, and the production line operator takes materials from the electronic warehouse according to the BOM. 2. The Quality Assurance Department looks for and prepares relevant documents (BOM, layout, ECN, dispatch, ingredient list, work order and history) according to the production plan, and checks whether the documents are consistent. Thirdly, SMT technicians adjust the program of the machine type to be hit according to the production arrangement, and check whether there are any changes in the ingredient list, BOM and layout. Fourthly, the operator checks that the ingredient list is consistent with the program name (ingredient list) in the machine, and the quality assurance staff confirms OK again, so that the material can be loaded. Five, the operator according to the bill of materials and specifications to start feeding, and make feeding records. Quality assurance of intransitive verbs Check whether the material station, specifications and materials are qualified according to the list of materials, sign the material plate and make a record of material alignment. Seven, after the mounter is mounted, the operator requires to check whether the layout is OK and adjust it according to the machine mounting coordinates. 8. After the operator checks OK, it shall be submitted to the Quality Assurance Department to check whether the physical objects are in conformity with BOM, layout, ECN and historical records. Nine, after reflow soldering, operators and material engineers PCBA should check whether the welding of parts meets the requirements. 10. When refueling, the operator should feed according to the bill of materials, specifications and models, check the quality assurance according to the requirements of the bill of materials, and sign on the material tray. 1 1. When recording materials for quality assurance, it is required to record suppliers, special conditions for screen printing, IC scheme and FLASH model. 12. When distributing materials, you must have the same tray (IQA pass standard and supplier material specification standard). If the above are inconsistent, the material distribution operator must tear up the inconsistent IQA pass standard and supplier material specification standard, re-label, indicate the specification and material number, and sign the name of the distributor. & lt/SPAN>。 & lt/SPAN>。