smt-designSMT production technology data 2004/09/07WengTITLE: 1. Design of printed circuit boards 2. Working environment requirements of SMT production equipment 3. SMT process quality inspection 4. General process of applying solder paste 5. Introduction to lead-free solder 6. How users can use your solder paste correctly 7. Causes and solutions for solder balls 8. Introduction to the process of manually mounting components using a suction pen or tweezers 9. Introduction to the process of manually printing solder paste using a printing table 10. Introduction to the process of manually dripping solder paste using a glue dispenser 11. Introduction to BGA rework and ball placement process 12. Causes and countermeasures of the \"monumental\" phenomenon 13. SMT production standard process of printed circuit board design http://www.hthuatai.com/smtzl_ysdlb.htm SMT circuit board is one of the indispensable components in surface mount design. SMT circuit board is a support for circuit components and devices in electronic products, which realizes the electrical connection between circuit components and devices. With the development of electronic technology, the size of PCB boards is getting smaller and smaller, the density is getting higher and higher, and the number of PCB layers is increasing. Therefore, the overall layout, anti-interference ability, process and manufacturability of PCB are required to be higher and higher. The main steps of printed circuit board design; 1: Draw the schematic diagram. 2: Create a component library. 3: Establish the network connection relationship between the schematic diagram and the components on the printed board. 4: Wiring and layout. 5: Create printed circuit board production and assembly production data. The following issues should be considered in the design process of printed circuit boards: 1. Ensure that the circuit schematic component graphics are consistent with the actual object and the network connection in the circuit schematic is correct. 2. The design of printed circuit boards not only considers the network connection relationship of the schematic diagram, but also considers the circuit engineering...
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