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发布于:2018-9-5 05:21:54  访问:405 次 回复:0 篇
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Electrical Technology Ac And Dc Machines Pdf
9. Finishing - the entire process of covering the pad areas having a thin layer of solder to get ready the board for the ultimate wave soldering or reflow soldering procedure that will take place at a later date after the elements were put.
10. Silk Screening - the process of using the markings for component designations and component outlines to your board. Might be placed on simply the side that is top to both edges if components are installed on both top and bottom edges.
11. Routing - the process of breaking up multiple boards from a panel of identical boards; this process also permits cutting notches or slots in to the board if needed.
12. Quality Control - a artistic assessment of this panels; also can end up being the process of inspecting wall quality for plated through holes in multilayer boards by cross-sectioning or other methods.
13. Electrical Testing - the entire process of checking for continuity or shorted connections in the panels by means using a voltage between various points in the board and determining if your present flow does occur. Dependant on the board complexity, this technique may necessitate a especially created test fixture and test system to incorporate using the electrical test system employed by the board manufacturer.
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4) Basic soldering technique
5) Advanced Smd soldering strategy
6) Quick and soldering station that is inexpensive
As soon as you master the soldering skill, you can use this of good use skill to fix the fault electronic component on any circuit panels. Begin training and practice make perfect.
In electronic devices, printed circuit boards, or PCBs, are accustomed to mechanically support components that are electronic have their connection leads soldered onto copper pads in area mount applications or through rilled holes into the board and copper pads for soldering the component leads in through-hole applications. A board design might have all through-hole components on the top or side that is component a mix of through-hole and surface mount at the top part just, a mix of through-hole and surface mount elements on the top part and surface mount elements on the base or circuit side, or area mount components on top and bottom sides of this board.
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