IPQC is the English abbreviation of InPut Process Quality Control, which means process control in Chinese. It refers to the quality control of products from the input of materials into production to the final packaging of the product. Basic introduction Chinese name: Process control Foreign name: InPut Process Quality Control Abbreviation: IPQC Purpose: Ensure input quality Also known as: quality control in the manufacturing process Introduction to terms, purpose of IPQC, IPQC method, related introduction, summary of job responsibilities, introduction to terms IPQC It is process control, which refers to the quality control of the product from the input of materials into production to the final packaging of the product. IPQC is also called in-process quality control, or quality control in the production process. The full English name is InPut Process Quality Control. Since the inspection method adopted by IPQC is patrol inspection between various processes in the production process, it is also called patrol inspection. The general method used by IPQC is random inspection. The inspection content is generally divided into random inspection of the product quality of each process, inspection of the operating methods and methods of the operators of each process, and spot inspection of the contents in the control plan.

The process of IPQC target product realization is a complex human-computer interaction system, which is composed of different processes. In this process, there is both logistics and information flow. If you want the output to meet customer requirements, you must do the following: Aspects: 1. Ensure input quality 2. Machinery and equipment are stable and have sufficient capabilities, and personnel operate in strict accordance with standards 3. Key parameters (CTQ) closely related to product quality are in a stable and controlled state 4. Information is accurate and complete, Timely, it can play a guiding role 5. An effective process monitoring mechanism can detect process abnormalities in time 6. The forward feedback mechanism enables the process to correct abnormalities in a timely manner 7. The backward feedback mechanism can effectively prevent the loss of bad products 8. The beginning and end of the product 9. Smooth process interfaces to prevent waste of resources. The execution of the above aspects depends on the continuous efforts of IPQC, and it is with the above support that the process is the process of ensuring output quality in the true sense. , so the work of IPQC realizes the transition from process to process, so that the output is no longer a simple addition of inputs, but an added value in quantity and quality. IPQC methods mainly include the following methods: 1. Execute according to the audit list Process audit---basic status of the process, does not vary by product 2. Process operation inspection---confirmation of materials, tools, auxiliary materials, methods, personnel 3. First article confirmation inspection---varies by product, process, equipment, Software, parameter inspection 4. Records - true, clear and timely 5. Feedback mechanism between each process - timely feedback of relevant information 6. Early warning mechanism works 7. Control of non-conforming products - identification, isolation, separate placement , Statistical analysis 8. Material input---put the right materials into the right products at the right time, and record them promptly and accurately to facilitate traceability 9. Product standards---process standards, functional requirements 10. Output of each process Sampling inspection---confirm that the process is stable, has sufficient capabilities, and the product is qualified. Introduction to IPQC process inspection work content Introduction to pre-production work preparation 1. According to the production plan, determine the BOM and ECN of the production model, color scheme and online materials Whether they are consistent, determine the inspection specifications. If there are samples for IQC incoming materials, provide the samples to IPQC and production inspectors to confirm whether there is online selection for incoming material inspection; if it is online selection, IQC will guide the online operator to select the samples according to the method. 2. Whether the on-line materials meet the product BOM requirements, ranging from small screws to large cartons. Every time a box (bag) of materials is changed, whether it is confirmed in time. According to the product BOM and ECN, check whether the types of on-line materials are complete, and whether the models and specifications are correct. 3. Whether Suspension SOP/WI, whether the arrangement is arranged according to the process flow. Work content in process control 1. Fill in the inspection report carefully and on time (usually once every 2 hours), check the electrostatic ring inspection record, and check whether all used electrostatic rings have been inspected and recorded. ; Check the electric batch torque inspection table to see whether the torque of the electric batch at the corresponding station meets the requirements of the SOP of the station and record the report. 2. Check the corresponding number on the soldering iron inspection table and whether the temperature of the soldering iron at the station meets the requirements of the SOP. And record the report, whether the soldering iron has grounding and leakage prevention measures. 3. Make sure there are qualified first parts and samples. 4. Use the first parts and samples to check whether the instrument and fixture are normal; make sure it is within the validity period of the instrument calibration; confirm that the set parameters are consistent with Product requirements are consistent 5. Whether employee operations are consistent with the work instructions, whether the first 5 products in the drop-down list are followed from front to back, and 5/2H/workstations are randomly inspected again for confirmation 6. Whether new products and new employees are inspected and specially purchased , substitution, trial production, concession release must focus on auditing, recording the situation and result feedback 7. The work must be placed in a fixed position, no accumulation, handle it with care, and employees must self-inspect and mutually inspect qualified products before pulling them down 8. Unqualified products Whether there are labels, and whether unqualified products are recorded on time 9. If any incoming materials and poor operations cause the materials to be unable to be used normally and affect the completion of the order, an <> feedback must be issued in a timely manner 10. Testing station (such as: semi-finished product testing and function If the defective ratio exceeds the quality target (testing and appearance inspection station), you must fill in the <> and track the processing results. A. Normal production (mass production), the single defective rate is 3%--5% per hour, and a quality issue is required Exception handling feedback sheet----Engineering analysis shows that the total defective rate per hour is 5%-10%. A quality abnormality handling feedback sheet needs to be issued.----Engineering analysis B. The total defective rate of trial production is 10%. A quality exception handling feedback sheet needs to be issued. ----Engineering analysis C． Line shutdown notice: single item defective rate per hour ≥ 5%, total item defective rate per hour ≥ 8% Requirements: Engineering analysis provides solutions online within 1 hour, if there is no response, the line will be shut down 11. Are materials, semi-finished products, and finished products placed properly? Implement status identification and signature 12. Check whether the report record is complete, clear, and clear at a glance. Whether the "total number", "defective number", and "defective rate" are calculated and recorded every hour, and whether the daily production line QC test report contains the "total number of tests" "Total number of defects" and "total ratio of defects"? 13. Do you understand and follow up on customer complaints and returns?

The rework situation must be followed up, bad statistics and result feedback must be kept, and the three existing "status quo", "current objects" and "on-site" must be retained. 14. Sockets, batteries, contacts, etc. for easy-to-wear tests should be replaced and recorded in a timely manner (for example, charger charging port) fragile, causing the mobile phone charger interface to break). 15. Any operation, packaging, and storage must not potentially affect the quality. 16. When customers relax product standards and fully accept a certain function or appearance, they need to sign a form for confirmation. Or sign limited samples. 17. Customers’ requirements for product standard changes must be fed back to online PQC and QA in a timely manner to achieve standard unification. 18. Based on the QA sampling inspection results, evaluate and audit the online PQC work and make weekly summaries. Summary of job responsibilities: According to daily production, inspect the first production and inspection products in strict accordance with the inspection standards; stamp the first product after inspection with a qualified seal and place it in the corresponding position; when unqualified situations occur, they should be reported immediately Notify relevant personnel to make improvements to avoid batches of defective products; track products with unstable quality, report problems to superiors or relevant personnel in a timely manner, and find solutions to solve problems in a timely manner; Assist supervisors to respond to customer feedback, Handle complaints and ensure that defective and good products in warehouse inventory are effectively handled; Responsible for signing and confirming the first piece, and ensuring that no samples will be produced and unqualified products will not be shipped; Coordinate the quality management of the workshop. Carry out inspection tasks and complete product inspections and random inspections according to the files and inspection instructions required by Huawei, ZTE, and each customer; according to self-made work orders, electronics, BOM structure, ECN, contact sheets, software release forms, Checklist "Key Device List" and other work to confirm the first article and online materials. (First article confirmation based on different inspection files according to different customer needs) Cooperate with the production line to confirm the return of materials and inspect the inspection tooling equipment, skillfully use the inspection tooling equipment to complete various inspection tasks, and inspect product labels according to the relevant file "Barcode Information Table", and Carry out scanning actions to provide records of material trial production defects, receive, classify, archive and recycle controlled files. Conduct inspections and audits on production line 6S, ESD and other aspects that affect quality, and promote the improvement of production line processes.

Record and complete relevant quality reports