第6章 pcb设计基础（The sixth chapter, PCB Design Foundation）.docVIP

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第6章 pcb设计基础（The sixth chapter, PCB Design Foundation）.doc

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第6章 pcb设计基础（The sixth chapter, PCB Design Foundation） This article is contributed by gsgtwlg Ppt documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view. The sixth chapter, PCB design foundation, PCB Design Foundation Learning goal: Master the basic operation of the PCB editor management window. Master picture management operation. Master the component placement toolbar, and the use of PCB editors commonly used editing functions. 6.1PCB overview The printed circuit board refers to the insulating substrate as a base material processed with certain size plate, there are at least 1 conductive pattern and all the holes in the above design (such as mechanical components, installation holes and hole hole metallization etc.), in order to realize the interconnection between electrical components. Provide the necessary mechanical support for various components in the circuit. Providing the electrical connection of the circuit. Mark each component on the board with mark mark, which is easy to insert, check and debug. ? Types of 6.1.1PCB ? according to PCB substrate material for dividing substrate material for divided according to the (1) rigid printed board) rigid printed board is made of rigid material to PCB, common rigid printed board is made with rigid material, PCB are generally rigid, such as computer cards, home appliances in general printing are rigid, are generally rigid such as computer board, system board etc.. The common rigid PCB is as follows. As follows. Plate and so on. The common rigidity follows the paper substrate. Low price, poor performance, paper substrate. Low price, poor performance, generally used in low frequency circuits and low demand occasions. And demanding occasions. Glass cloth. The price is more expensive, better performance, glass cloth plate. The price is more expensive, better performance, often used in high frequency circuits and high-end home applia