[IT168 comment] The city of Dongguan, if we look away from the secular eyes, his core competitiveness is still the identity of its world factory. "Every five mobile phones in the world, there is a mobile phone manufactured in Dongguan" - this achievement of the optical mobile phone manufacturing industry is enough to present Dongguan's strength in the electronic manufacturing industry. With the increasing trend of global consumer upgrades, our “world factory†has also begun to implement various changes to meet the needs of consumer upgrades, and our “China high-end manufacturing†exploration destination - Jinli Group Industrial Park is based on the hinterland of "World Factory" Dongguan. In the past five or six years, the entire Chinese mobile phone market has gradually matured through the e-commerce channels, and a huge pattern change has taken place. Thanks to the ODM model and e-commerce channels, mobile phone manufacturers such as Xiaomi and others, known as “Internet brands,†have rapidly emerged, and there are few mobile phone brands that adhere to R&D, design, assembly, brand management, and marketing integration. Jin Li is one of them. Jinli Brand headquarters is located in Shenzhen, while Dongguan Group Industrial Park is its manufacturing base. It is located on the shore of Songshan Lake, with a total area of ​​300 acres, more than 10,000 production workers, annual mobile phone production capacity of 80 million units, and a total investment of more than 2.3 billion yuan. According to the Sandbox introduction by Li Sanbao, Executive Vice President of Jinli Group, the entire industrial park is divided into a manufacturing workshop and an employee's living area by a main road. The first impression after actually entering the park is that there is almost no impression in the park. The "industrial taste" of the several manufacturing buildings looks like an ordinary commercial building from the external wall. There are no large-scale machine operating noises, and there is no phenomenon of gas-liquid discharge. The employee's living area is even less like a factory. If employees work in the living area after work hours, they seem to be almost indistinguishable from the living areas of a common university. This first impression also refreshes the one-man production of the factory, including the editors. impression. Understand the overview of Jinli Industrial Park We officially entered the process of exploring mobile phone manufacturing. The mobile phone manufacturing process in Jinli Industrial Park mainly includes the following four aspects: First, the mobile phone motherboard SMT patch Second, the mobile phone motherboard test test Third, the whole assembly and packaging Fourth, the whole machine reliability test A, mobile phone motherboard SMT patch The manufacture of mobile phone motherboards using SMT (Smooth Chip Packaging) technology can be said to be an important indicator of whether a brand has its own mobile phone capabilities. It is usually the largest part of a handset manufacturing plant investment. Jinli Industrial Park has a total of 54 SMT shop lines. The average cost of each line is close to 20 million, with a total investment of more than 1 billion. In other words, the investment of such a motherboard SMT chip shop accounted for 45% of the investment in the entire industrial park! Therefore, why the mobile phone motherboard can represent the ability to manufacture mobile phones, this heavy asset investment is a process that many ODM mobile phone brands can not adapt to. At present, Jinli’s SMT placement machines use the latest models in the world, and because Japanese manufacturers have lagged behind German companies in SMT placement machines in recent years, most of the placement machines currently in use at Jinli DX4 from Ashkenazi Siemens. This placement machine can reach the highest level in the industry with speed and accuracy. It can fit more than 30 components and chips in one second. The placement accuracy is 0.025mm, and it can be mounted within 1mm2. 12.5 devices. Due to Jin Li's high investment in the placement machine, it is reported that Qualcomm and MTK have some new processor motherboard placement and flow sheet production testing, will be completed here in Jinli, the industry's first batch of POP packaging technology (processor and memory chips The laminated chip is produced here on the Jinli SMT line. In addition to the investment in equipment, Jin Li Wang Yajun (Director, Production Reliability Department) also mentioned that Jinli's quality inspection information management began to intervene from the SMT chip production of the motherboard. Each batch of the motherboard has separate MES data management. To ensure that the quality of each product is in place. That is to say, each mobile phone knows which batch of parts it carries, what production time it produced on that production line, and even which operating personnel it produces. of. Finally, on the SMT workshop, the author also asked about the supply and demand issues. Jinli Wang Yajun admits that the workshop's current sales volume of 80 million mobile phone motherboards, Jin Li brand mobile phone sales have not yet reached the point of full production capacity, Therefore, the OEM business is also one of the sources of income for industrial park operations. It will mainly help OEMs with some on-board systems and some new smart hardware devices. Second, mobile phone motherboard test and test Since the production of mobile phone motherboards is the most important part of self-produced mobile phones, it is equally important to test whether the produced motherboards pass. After a motherboard is packaged with various components on the first floor SMT chip, it is sent to the automated test shop on the second floor for "systemic inspection." There are 70 automated test lines in Jinli's main board inspection and test workshop, with more than 700 RF test instruments and more than 4,000 industrial computers. The production cost of each automated test assembly line amounts to RMB 6 million, and the monthly detection of mobile phone motherboards can reach 4.5 million. Automated test systems are developed by Jin Li. The entire test process requires only a simple pick and place operation. The industrial computer cooperates with the instrument to automatically locate the main board and then adjusts and tests the RF performance and functions of the main board to ensure that each The quality of the motherboard before installation. And with the implementation of the national "machine substitution" policy, Jinli related personnel revealed that it has planned to combine mechanical mobile devices and robot arms in the future, and even the operator's motherboard pick and place operations will be eventually replaced. The detection process of the motherboard is roughly divided into 1, software loading → 2, writing SN code → 3, RF calibration → 4, comprehensive testing → 5, MMI functional testing → 6, chip dispensing. Here one of the 1 2 3 4 6 and other processes are well understood, the software loading is to install the entire software system to the storage, write the SN code is to add a serial number to the motherboard (for a variety of identity proofing), RF calibration is to ensure the mobile phone signal The frequency and intensity are in line with the standard, and the comprehensive test is that the entire inspection process is replaced with another inspection line. The chip dispensing is through the operation of the black plastic filling to make the components on the main board more secure so as to avoid the problem of imaginary welding. The MMI function test, which sounds like a professional test procedure, deserves a separate introduction. In general, the detection of sound reception, camera, various sensors, touch and vibration feedback, and call effects are performed only after the entire machine is assembled. However, when Jin Li is not equipped with a mobile phone main board, it is also It is the first time that the entire main board (or two blocks) has been tested for the first time. In order to detect these interactive functions with only the main board, Jin Li independently designed the test fixture to simulate the human ear, mouth, face, etc., and detected the interactive functions of each part of the motherboard. This MMI function detection process It is indeed quite rare in the industry, and it further ensures that the mainboard's functions work properly before assembling the whole machine. Third, the whole assembly and packaging After the main Component board has been manufactured and tested, the entire machine can be assembled. Some readers here may ask: What is the most differentiated component of a cell phone other than the motherboard? Where is the manufacturing site for the enclosure? In fact, both the previous plastic enclosure and the current metal enclosure are This is done by a specialized supplier, because no matter if it is plastics, baking and forming, metal forging and cutting, etc., all belong to another major area, so few mobile phone brands will have their own shell manufacturing plants. In the assembly shop, motherboards, housings (frames), screens, cameras, batteries and various plug-ins, etc. will be assembled in accordance with the assembly line process. In fact, for mobile phone assembly and packaging workshops, different brands will not be very different in steps. Obviously, the gap is mainly manifested in efficiency. Through various operating details, it can improve how many percent of efficiency, and how many percent of manpower can be liberated through more automated interventions. All these require long-term experience to obtain a Little bit of promotion. Therefore, in addition to putting automation equipment in the aspect of assembly/packaging, Jin Li’s major aspect is rewarding employee’s independent improvements. In the hallway outside the assembly shop, a large number of employee improvement proposal cases were shown, and the impacts before and after the improvement were explained in detail. This type of publicity reward is indeed worthy of learning by other factory enterprises. It is reported that this method has been implemented since 2013. The improvement includes production and production. It involves quality improvement, efficiency improvement, technological innovation, cost control, and people's livelihood. At present, it has received 2,100 suggestions for improvement. Fourth, the whole machine reliability test After the mobile phone is fully assembled, it will be sent to this reliability laboratory for various "violent tests". The reliability test is believed to be the most enjoyable part of the production process because everyone can experience it most. It is easy to break, crush, and how long the service life is the user's most concern. After a new mobile phone is manufactured, it will take 14 days to torture in this laboratory. About 50 torture projects include climate environment, mechanical strength, endurance life, complete machine protection, surface technology, and performance. Identification of six aspects. Only by passing it can you be considered a product of design and passing, and it is the last line of defense before the product reaches the user. Climate and environment testing: including a series of tests such as low temperature storage, low temperature operation, high temperature storage, high temperature and humidity, humidity and humidity cycles, and high and low temperature impact. Verify that the mobile phone has a temperature range from -40°C to +80°C and relative humidity at 90°C. Under various harsh climate conditions such as percent or above, whether various aspects can still be normal. Its standards are all stricter than the standard/national standard, either longer in testing time, or more severe in environmental conditions, or both. Mechanical strength test: It includes a series of tests such as dropping, slightly falling, roller, ball impact, soft/hard pressure, torsion, random vibration, and interface strength. Endurance life test: It includes a series of tests such as various plug and pull, flip life, key life, speaker and handset life, and touch screen life. The whole protection test: including dust, static electricity, salt spray, iron filings, rain/immersion and other tests. Surface Technology Test: Contains paper tape wear, vibration and wear resistance, pencil hardness, Baige, UV, artificial sweat, cosmetics (lipstick, hand cream, Vaseline), boiled, alcohol abrasion, steel wool friction and other tests. Performance appraisal: including battery charge and discharge, high/low temperature charge, surge, operating temperature rise, radio frequency darkroom and other tests. Return question: What is the high end of China's high-end manufacturing? After probing the entire mobile phone manufacturing process of Jinli Industrial Park, we went back to the topic: In China's high-end manufacturing with Jin Li as the case, where exactly is the high end? The author made three personal opinions to answer: I. Significantly increased production staff’s humanistic care This is most easily seen in addition to ice-cooled machinery: the environment in the industrial park is like a campus, free food and shelter for employees, dual-employee-separate husband-and-wife rooms, management’s two-room suites, and a regular organization of various cultural and recreational activities at the factory. From the salary of 3,800 yuan ... In the process of dialogue, Li Sanbao, the person in charge of the Jinli Industrial Park, admitted more than once that the current employees are far less than the staff of more than 10 years ago, from the recruitment to the employment and then to the remaining workers in all aspects of the factory enterprises have Higher requirements, but it is precisely because of this kind of favorable conditions set up in order to allow real talent to stay in the park, improve factory production quality level. Second, a virtuous cycle of high input and high quality output The core of high-end manufacturing is not to produce a variety of top-notch high-tech products, but to efficiently manufacture products that can stand up to trials. To achieve both high-efficiency and high-quality, the premise is to introduce the most advanced production tools and methods. . With high-quality products that can stand the test, users will continue to increase their trust in the brand. The higher the trust, the greater the premium for the brand, and the greater the return of profits, the greater the returns will be put into new ones. In the production tools and methods, this is the virtuous cycle that high-end manufacturing can bring. Third, meet the global high detection standards In accordance with the current international android brands have been defeated, Apple's leadership and ability to innovate is no longer the time and place and trends, domestic brands share the international market has almost become a foregone conclusion. With this favorable outlook, domestic brands should be better prepared to meet international standards in quality standards, and should no longer be satisfied with the well-behaved landmarks/GBs. In this respect, from the Jinli reliability test, we also saw the relevant trends. Li Sanbao, the head of the industrial park, also made assurances before the media that Jinli's products sold to China and abroad were produced under the same standard. Adapt different markets and make different production standards. In the end, the author outputs a view on the current popular ODM model and traditional integration model. No matter which model is more competitive, after all, the mobile phone market changes rapidly, and any model can have its own timely response to changes. The way of living. However, in the real estate market, finance, the Internet, and other industries, the bubble continues to adhere to the industry today. Brand enterprises that bring real benefits to people and regions should be respected. Plexi Panels,Plexiglass Panels Lowes,Thin Plexiglass Sheets Lowes,Clear Plexiglass Panels zhejiang goldcity technology co,ltd , https://www.membrane-gc.com
â–² Jinli Group Industrial Park beside Songshan Lake 
â–² If you do not say that the factory is completely thought of as a school 
â–² Li Sanbao, head of the Industrial Park, introduced us to the overview of the factory area 
â–² mobile phone motherboard SMT workshop 
â–² mobile phone motherboard SMT workshop 
â–² Jin Li Wang Yajun (Director, Production Reliability Department) 
â–² The operation of these manpower picks will also be planned to be replaced by machines in the future. 
â–² The newly produced mobile phone motherboard is in the RF calibration test 
â–² The simulation of human body interaction MMI function detection 
â–²It is rare to reserve a spacious visiting channel at the beginning of the factory design. 
â–²Double U-arrangement assembly/testing line has the advantages of quick switching of production models and easy visual management 
â–²In the assembly stage, basic testing of audio, LCD, camera, sensor, optical image stabilization, and dual cameras can be performed simultaneously. 
â–² Battery charge and discharge test 
â–² Employee Improvement Suggestion Case Wall 
â–²Employee improvement proposal case 
â–² Employee Improvement Suggestion Case Wall 
â–²Climate environment testing machine 
â–²Simulated user's seated soft/hard pressure test (25kg pressure) 
â–² Micro drop test 7cm high, 10,000 times (industry has no relevant standard) 
â–² Drop test height 1m (line mark/GB is 0.5m), 6 sides x 2 times + 4 corners x 1 times 
â–² Roller test 
â–² steel ball impact test 
â–² Anti-torsion test 
â–² Clamshell life test 100,000 times (industry standard 50,000 times) 
â–² Button life test 150,000 times per key (50,000 times in industry standard) 
â–² Button life test 150,000 times per key (50,000 times in industry standard) 
â–² Plug test 
â–² Anti-static test 
â–² UV protection test 
â–² polishing machine test surface technology strength 
â–² Dedicated stones vibrate for 1 hour 
â–² Battery charge and discharge aging test 
â–² RF darkroom test Netcom mobile phone test 15~16 hours, covering 6 mode 