source:Industry News release time:2022-09-30 Article author:yu Popular:pcb
1. smt patch processing link
The system quality control details of solder paste printing and reflow temperature control in smt chip processing PCBA are the key points in the PCBA manufacturing process. For high-precision pcb circuit board printing with special and complex processes, laser stencils are used according to specific processing and production conditions to meet the quality standards of pcb circuit boards. According to the PCB manufacturing requirements and customer product characteristics, the patch processing factory needs to add U-shaped holes or reduce steel mesh holes in some parts; it is necessary to do certain processing work on the steel mesh according to the requirements of the PCBA processing technology.
Among them, the temperature control accuracy of the reflow oven is very important for the wetting of solder paste and stencil welding. It is also adjusted according to the normal SOP operation guidelines to reduce the minimum loss rate and reduce the production process of the SMT technology link of PCBA patch processing. In addition, the technical operators of the smt technology production workshop of the patch processing factory must conduct AOI tests in strict accordance with the standards, which can greatly reduce the occurrence of defective products caused by human factors in the process of pcba processing and production. is happening.
2. DIP plug-in post-weld link
The post-soldering of the DIP plug-in is also an important step in the pcb processing stage of the pcb circuit board. The requirements and standards of the oven jig are also critical. After the PCBA is overheated, the use of the furnace fixture can greatly improve the yield rate and reduce the occurrence of welding defects such as continuous tin, less tin, and lack of tin. It is also according to the different requirements of customer products. According to the standard, pcba processing plants must constantly sum up experience in practice, and realize technological upgrading in the process of accumulating rich experience.
3. Test and program triggering
The manufacturability report is the evaluation work performed by the chip processing factory before the entire production after receiving the customer's production contract, and then in the early DFM report, the chip processing factory will also evaluate the PCB circuit board. Communicate with customers before processing and provide some effective suggestions, such as setting up some key test points on the PCB, which will help the continuity and connectivity of the circuit board after the pcb solder test and subsequent PCBA processing. The key test of sex. If conditions permit, you can communicate with the customer to provide the back-end program, and then burn the PCBA program into the core main control IC through the burner; in this way, you can directly touch the pcb circuit board through touch actions. The test work is convenient to test and check the integrity of the entire processed PCBA, and the PCBA of defective products can be found at the first time.
4.PCBA test link
Customers who provide one-stop PCBA processing services also have certain implementation standards for the back-end testing of PCBA. The content of pcba test generally includes ICT (circuit test), FCT (function test), burnout test (aging test), temperature and humidity test. , drop test, etc. The relevant personnel in the smt workshop of the chip processing factory must undergo strict standard on-the-job training.
Read recommendations:
Six-layer Immersion Gold Board (BGA)
Six-layer Immersion Gold Board (BGA)
Six-layer Immersion Gold Board (BGA)
PCB design questions answer, all aspects of lifting your confusion.Electrolytic capacitor PCB Produc
Popular recommended products
Six-layer Immersion Gold Board (BGA)
2021-05-27Single copper base PCB
2021-04-27High frequency PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-27Computer card board (four layers)
2021-04-25Six-layer Immersion Gold Board (BGA)
2021-05-27Aluminum substrate (double-sided)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27High frequency PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-27Mobile phone template (six layers)
2021-04-27Laminate copper-based PCB after 4L (sample)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-24Six-layer Immersion Gold Board (BGA)
2021-04-27Single-sided double-layer AL base PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-24Display board (six layers)
2021-04-27High frequency PCB
2021-04-27Network communication board (sixth floor)
2021-04-29High frequency PCB
2021-04-27Silver oil perforated plate (double-sided)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-26Six-layer Immersion Gold Board (BGA)
2021-04-26Mobile phone board
2021-04-27DIP plugin
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26SMT stickers
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26Mobile phone board
2021-05-27DIP plugin
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26SMT stickers
2021-05-27Related Information
SMT surface mount processing.Hybrid circuit board PCB
2024-04-15PCB enterprises should pay attention to SMT matters.Electronic components PCB
2024-04-03PCB - the core building block of electronic products.Automotive Electronics PCB
2024-03-25PCB - the bridge and link of the electronic world
2024-03-18How to define high-frequency and high-precision circuit boards.Industrial Electronics PCB
2024-03-11USB PCB interface layout and wiring requirements
2024-01-22Electrolytic capacitor PCB.Steps for using PCB pins
2024-01-15Automotive ElectronicWhat aspects should be considered when processing and manufacturing PCB boards?
2024-01-08Electrolytic capaciWhat is the difference between a gold-plated circuit board and a gold-plated one?
2023-12-25When grinding PCB boards, attention should be paid to.Oscillator (belonging to crystal) PCB
2023-12-18Industrial Electronics PCB!What precautions should be taken when copying and grinding PCB boards
2023-12-11Do you know who is more suitable for LED direct display, regarding the difference between PCB board
2023-12-05Aluminum electrolytic capacitor PCB.What are the standards for selecting PCB boards
2023-11-27Surface Mount Technology (SMT) Phase PCB
2023-11-20Oscillator (belonging to crystal) PCB.The main functions of PCB board
2023-11-13What is the difference between RO filter and PCB filter
2023-11-06Method for determining blind hole PCB board
2023-11-01Electronic Manufacturing Services PCB!What are the effects of PCB board color on performance?
2023-10-23Introduction to the Manufacturing Steps and Requirements of PCBA Test Stand
2023-10-16PCB version maturity stage.AOI circuit board price
2023-09-25How to maintain a PCB circuit board
2023-09-19Development Trend of Printed Circuit Board.Zener diode PCB Vendor
2023-09-14Common problems and cause analysis of PCB circuit board sampling.Zener diode PCB price
2023-09-08What are the issues that need to be understood in PCB circuit board design?IGBT module PCB factory
2023-09-08How to reduce the risk of bending and deformation in PCB circuit board production?Inverter PCB Produ
2023-08-16What are the three main factors that constitute welding defects in PCB circuit boards?Multilayer PCB
2023-08-16The structure of a glass teapot.LCD Module PCB factory
2023-08-11Glass teapot.Inverter PCB Processing
2023-08-11PCB online debugging
2023-08-08PCB offline programming
2023-08-08