SMT manufacturer PCB surface to find the reason of PCB coppered laminate
According to the activity of flux, it can be divided into active (RA), medium active (RMA), inactive (R), water washing (OA), no cleaning (NC)
Professional PCB manufacturing and assembly
Building 6, Zone 3, Yuekang Road,Bao'an District, Shenzhen, China
+86-13923401642Mon.-Sat.08:00-20:00
Advantages of SMT surface assembly technology
SMT technology has only a history of more than 40 years. It has gone through the journey from birth, perfection to maturity with extraordinary speed, and entered the flourishing period of large-scale industrial application.
SMT patch processing quality precautions and solutions
In the SMT process, there are six mounting quality problems that need attention: 1, mount design quality, 2, mount raw materials (components, PCB, welding paste and other mount materials) quality, 3, mount process quality (process quality), 4, mount weldi
SMT factory incoming material quality inspection standard
◆ Main factors affecting the viscosity of solder paste: 1. Shape and temperature, 2. Thixotropic coefficient of solder paste, 3. Wettability of solder paste
SMT process 17 requirements for component layout design
Component layout shall be designed according to SMT electronic processing production equipment and process characteristics and requirements. Different processes, such as reflow welding and wave soldering, have different layouts for components.
SMT factory mounting process quality inspection and analysis
The cleaning quality detection methods of PCBA are as follows: 1. Test methods of ion pollutants: (1) extraction solution resistivity test method, (2) ion chromatography test method
How does SMT plant clean PCB after surface mounting and welding
Significance of PCB cleaning after surface mounting welding: 1. PCB cleaning after surface mounting welding can prevent the occurrence of electrical defects. 2. PCB cleaning after surface mounting and welding can eliminate corrosive substances. 3. The PCB
The key technology of reflow welding machine in SMT patch processing
SMT basic process elements: solder paste printing -> Parts mounting --> Reflow welding --> AOI Optical Detection --> Maintenance --> The board is divided.
SMT factory component assembly and welding
SMT process flow chart: 1. Material preparation and inspection, 2. Template preparation, 3. Solder paste printing, 4. SMC placement, 5. Reflow welding, 6. Cleaning and inspection
Factors affecting SMT welding quality in PCBA machining
The demand for multifunctional, miniaturized, high-density, high-performance and high-quality electronic products is increasing. High welding quality has become the life insurance of electronic products.
SMT patch processing repair some skills to share
There are two ways to judge the quality of the circuit board: 1. standard rules of size and thickness, 2. light color, 3. Welding appearance
How to reduce the casting rate in SMT patch proofing
The latest quotation of PCBA is determined by the following three parts: 1. PCB plate: 2. SMT Patch Processing Plate: 3.
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