AutoCAD Tutorial - A Rapid Explanation of Layers for Printed Circuit Boards This AutoCAD Tutorial will clarify how you can set up layers in AutoCAD for the electronic sector. Even though designing in AutoCAD, the drafting schematics, style PCB artwork, detailed fabrication list and assembly drawings are all drawn on different layers. Right here is definitely an explanation of layers that are usually produced for an Electronic PCB design: 1. The silkscreen on the top side of your PCB The silkscreen consists of component outlines and legends etched with white ink on the top side from the PCB. The manufacturing of PCBs demands a legend silkscreen containing the reference designators (components). 2. The circuit traces on the solder side of the PCB Electronic schematics consisting of symbols that represent the individual electronic parts that happen to be necessary to make an AutoCAD drawing. These electronic symbols are interconnected with lines that represent the actual electrical connections and are annotated with text containing the specifications in the components made use of. The basic schematic symbols are standardized as well as offered as a library for use in AutoCAD which simplifies the process of creating schematics. 3. The pads for by way of hole elements. Libraries of endpoint symbols are available which, with various hole types and sizes, need to be incorporated into the drawing. 4. Any particular solder mark patterns on the elements side in the PCB. The reference designators are used to decide the location of components on the PCB, and utilised in the course of manufacturing, also as troubleshooting the PCB at a late time. five. Drill symbols and attributes associated with the pads of thro hole elements. The drill attributes in the drawings give the drilling facts utilized by automatic machines for drilling holes. 6. Drawing border, title & other particulars http://www.rigid-flex-pcb.com/ http://www.rigid-flex-pcb.com/ utilised in documentation required for manufacturing. A detailed list of components required for manufacturing the PCBs can be extracted from the AutoCAD drawing. Once the layout is complete the AutoCAD drawing is converted to Gerber and Excellon file formats, which is business standard for photo plotting PCB artwork. These file formats are required for manufacturing PCB's when using third party add-on software. The following industries can benefit from setting up their layers the way it is suggested in this AutoCAD Tutorial: 1. Research and educational institutions for designing electronic systems. 2. Electronic equipment companies for design and manufacturing of circuits, PCBs and prototypes. 3. Electronic engineers for designing and manufacturing circuits, PCB's and prototypes. 4. Manufacturers for extracting information out in the drawings and using it for production.