From Concept to Action, Create a High Quality Production Closed Loop

In the production process, in order to effectively implement the product quality concept of five defective products per ten thousand, all employees of YINUOLINK are making concerted efforts and going all out.

During the product research and development process, ensuring the scientificity and effectiveness of the production test process is crucial for guaranteeing the consistency and stability of product quality. The R&D team is well aware of this. They not only formulate a standard production test process but also attach particular importance to the segment of "WiFi Calibration Balance Test". In the past production process, when the WiFi calibration balance test was not conducted, the first-pass rate of the initial WiFi calibration was as low as 80% or even lower, and WiFi calibration is related to the stability of performance. In order to fundamentally solve this problem, the R&D team repeatedly carried out WiFi calibration balance tests. Through continuous optimization of the plan and precise adjustment of various parameters, the first-pass rate of the initial WiFi calibration has been significantly improved and stably maintained at 99% (depending on different product batches, models and quantities). This not only enhances the consistency and stability of product quality, but also the high first-pass rate makes the production process smoother and significantly improves production efficiency.

Furthermore, the R&D team also comprehensively sorted out and improved the SOP materials for all products, covering all aspects from the most basic component assembly methods to the operation specifications of complex production equipment. Through in-depth research at the production front line and collection of suggestions, then targeted adjusted the SOP materials, striving to ensure that the SOP materials truly met the latest requirements of actual production. Before FLASH programming, strictly follow the established related processes, conduct meticulous checks on the programming content to ensure that every piece of data and every instruction is accurate, and then solemnly issue the "Confirmation Letter Before FLASH Programming". After the FLASH programming is completed, once again, with a rigorous attitude, conduct a comprehensive and strict verification of the programming content. Only when all the content is completely consistent with the expectations will the "Confirmation Letter After FLASH Programming" be issued;Even before the start of mass production, strictly follow the process of the "First Article Confirmation (SMT/DIP) Process and Management System" to control the assembly of the first article product and conduct comprehensive, multi-level testing and verification, from the appearance inspection of the product, such as whether there are scratches and defects on the surface, to the functional test, such as whether the basic functions of the product are normal and whether the performance indicators meet the standards, and then to the reliability test, such as whether the product can operate stably under different environmental conditions, etc. Only when all the indicators of the first article product meet the standards will it enter the mass production stage.

During the product's mass surface mount technology (SMT) stage, the SMT professionals are deeply integrated into the production process. With their professional experience, when encountering problems that may affect product quality, such as panel design, chipset packaging design, and material usage rules, they directly feedback to the R&D team immediately. Meanwhile, YINUOLINK has implemented comprehensive and strict control over the SMT segment, conducting strict supervision at every step from the material inspection process to the SMT production process. Particularly during the SMT production process, it is required to carry out sampling inspection and testing strictly in accordance with the established process to ensure that each production step can meet high-quality standards; For the products after SMT, strict requirements have also been formulated in the packaging and transportation links to avoid damage to product quality due to improper packaging or unexpected situations during transportation to the greatest extent. Through this two-way strict control and close collaboration, the direct pass rate of product SMT has been significantly improved. Depending on different product batches, models and quantities, the direct pass rate of SMT is stably maintained between 95% and 99%.

During the formal production process, the production team strengthened the supervision and inspection of the implementation of quality standards, strictly followed the corresponding "Finished Product Inspection Standards and Specifications", and conducted detailed checks on each production process. Whether it is the overall performance indicators of the product or the appearance quality of the product packaging, once non-compliance with the standards was found, the production team were immediately required to rectify, and detailed records and analyses of related problems were made to solve the potential quality hazards from the root cause. In the product repair segment, the repair engineers uphold a highly responsible attitude, do not overlook any detail that may cause a failure, and never allow any product whose cause cannot be found or cannot be repaired; the products after repair must also go through a strict testing process to conduct a comprehensive inspection of various functions of the product to ensure that its performance is restored as before; and it also needs to undergo an aging test to simulate various situations of the product during long-term use to further test the stability of the product; Finally, only after passing the strict quality inspection process and confirming that the product quality is correct is it allowed to flow into the subsequent production segment.

Meanwhile, in order to effectively improve product quality and ensure the efficiency and smoothness of the production process, the production department has adopted a series of effective measures. First of all, detailed classification and marking of product operations were carried out, clearly distinguishing each step of production, avoiding possible confusion and omissions of steps in the production process from the source. Secondly, a fixed code was assigned to each employee. Once a problem occurred, it was possible to quickly and accurately locate the specific segment and clarify the responsible subject, providing great convenience for problem-solving and process improvement. Furthermore, great importance was attached to the recording of problems. At all segments of production, once a problem was found, detailed records would be made immediately. Based on these records, abnormal situations could be analyzed in depth, and then highly targeted improvement plans could be formulated to promote the continuous optimization of the production process. In addition, the 6S management concept was also vigorously promoted, requiring employees to keep their desks tidy at all times and create a good production environment, which effectively promoted the smooth progress of the production process. Through these measures, the production department not only effectively avoided production chaos and realized the traceability of problems, but also continuously improved product quality through continuous improvement, laying a solid foundation for the high quality development of the enterprise.

Furthermore, considering the potential hazards that static electricity may cause to the production process, YINUOLINK attaches great importance and organizes all employees to participate in the special training of "Static Electricity Hazards and Prevention". Through explaining the principle of static electricity generation, hazard forms and actual case analysis, employees are made to deeply understand the importance of static electricity protection. A series of practical static electricity prevention measures and operation methods are also provided for employees, such as correctly wearing anti-static equipment, avoiding rapid movement or friction of items that may generate static electricity during daily operations, and conducting regular static electricity grounding tests on equipment. This also lays a solid foundation for the safe, stable and efficient operation of the production process, and is conducive to promoting a qualitative leap in product quality and production efficiency.

Optimize the Supply Chain System and Work Hand in Hand with Suppliers to Promote Development

In order to better improve product quality and deliver products to customers faster, YINUOLINK has continuously improved the supplier management system and deeply optimized various documents. Such as optimizing the "Supplier Development Questionnaire", "Development Contract", "Environmental Protection Commitment Letter", "Confidentiality Agreement", "Supplier Integrity Agreement", "Entrusted Agency Import Contract and Agreement", "Overseas Freight Forwarding Agency Export Contract and Agreement", "Mold Contract and Agreement", Refine the "Quality Agreement" for various materials, Outsourced "Processing Contract Agreement"And supplement the "Product Quality Assurance Declaration", "The Purchasing Policy Statement on Conflict-Free Metals", "Supplier - 8D Improvement Countermeasure Report" and a series of standard and normative documents.

At the same time, increase the supervision of product quality. When supplying samples, strictly require suppliers to simultaneously provide comprehensive quality control documents such as "Material Specification Sheet" and "Inspection Report" to ensure that the sample quality is traceable and the standards are measurable; after confirming that the samples meet the requirements, timely complete the collection and archiving of the "Material Approval Document" and improve the material approval process; for the materials that have been put into use, implement strict sealed sample management, retain standard samples, and provide a reliable basis for subsequent production, inspection and quality traceability to ensure the stability and consistency of product quality.

Especially in the incoming material inspection segment, YINUOLINK has always adhered to a rigorous and responsible attitude, and built a quality defense line in all aspects. Not only have detailed and precise "Quality Inspection Standards and Specifications", "Sampling Inspection Standards" and "Sample Books" been formulated, but also dedicated personnel have been arranged to conduct meticulous incoming material inspections on all incoming materials in strict accordance with the specifications and inspection standards. No aspect is overlooked, from whether there are flaws in the appearance of the raw materials to whether each performance indicator meets the established standards. Meanwhile, in order to better complete the incoming material inspection work, the administrative department organized a series of training on material inspection, inviting experienced quality inspection backbones within the company to explain the key points, processes and importance of various material inspections to all quality inspectors in a simple and understandable way. Also, through on-site operation demonstrations, every employee participating in the training can deeply understand and master the inspection skills proficiently. In the entire year of 2024, multiple batches of defective materials have been successfully intercepted. This not only effectively improves the production yield, providing a solid guarantee for the smooth progress of the subsequent production process, but also greatly reduces the potential cost losses caused by defective materials.Meanwhile, for the defective materials, the "Quality Exception Contact Letter" was issued in a timely manner, and active communication was conducted with the suppliers. By presenting facts and listing data, the serious impact of the defective products on our company's production and product quality was clearly expounded, prompting the suppliers to attach great importance to the product quality issues ideologically. During this process, the improvement measures of the suppliers were also continuously followed up. From the source of raw material procurement, control of the production process to the ex-factory inspection process and other aspects, the suppliers were assisted in digging deep into the root causes of the problems and formulating practical and feasible improvement plans.

In addition, the supplier evaluation system was improved, and comprehensive evaluations of suppliers were conducted based on multi-dimensional standards such as quality. With a strict and prudent attitude, the control over suppliers was strengthened; great importance was attached to the cooperative relationship with supplier partners, and efforts were made to build a long-term and stable cooperative relationship by establishing a regular communication mechanism, providing feedback and support, etc.; production efficiency and product quality were improved in an all-round way, operating costs were reduced, and the flexibility and reliability of the supply chain were enhanced to achieve mutual benefit and win-win and sustainable development for both parties.

Take Multiple Measures and Exert Efforts in Multiple Dimensions to Promote Growth

YINUOLINK always adheres to market orientation, with keen market insight and an aggressive attitude, comprehensively and flexibly adjusts market strategies. On the basis of stabilizing and deepening the B2B model, it continuously deepens cooperation with enterprise customers through mature online trading platforms such as Alibaba and 1688. At the same time, YINUOLINK vigorously expands online promotion channels and comprehensively arranges the network marketing matrix. In the field of video promotion, it has vigorously expanded highly influential video promotion platforms such as Toutiao, Kwai, Xiaohongshu, Xigua Video, Bilibili, and Douyin. In terms of soft article promotion, it actively arranges platforms with wide dissemination and deep influence such as Zhihu, Weibo, Toutiao, NetEase News, and Google, providing potential customers with valuable information resources to help them better understand YINUOLINK's products and services, imperceptibly enhancing customers' trust and favor for the company, and laying a solid foundation for the company's business expansion and the improvement of market share.