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AVR_Course_Day2 what is pcb

This is a microcontroller course for atmega328 (the chip used in Arduino Uno) explained very simply .

AVR_Course_Day2 what is pcb

  1. 1. What is PCB • Printed Circuit Board • PCB board design defines the electrical pathways between components • It is derived from a schematic representation of the circuit • imported from a schematic design, it translates the schematic symbols and libraries into physical components and connections. • Mass manufacturing • Professional
  2. 2. Materials of PCB • Conducting layers are typically made of thin copper foil. • The board is typically coated with a solder mask that is green in color. Other colors that are normally available are blue and red. • Unwanted copper is removed from the substrate after etching leaving only the desired copper routes or pathways
  3. 3. Parts of PCB • Components • Pads • Routes • Vias • Top Metal Layer • Bottom Metal Layer
  4. 4. Manufacturing process 1. Film generation. 2. Shear raw material. 3. Apply image (toner transfer, photosensitive, silkscreen Or CNC). 4. Strip & etch. 5. Solder mask 6. Silkscreen overlay 7. drilling. 8. Soldering.
  5. 5. Design layers • A PCB design package allows the designer to define and design on multiple layers • Many of these are physical layers such as: • top layer. • Bottom layer • And some are special layers such as: • Solder & Paste Mask Layers • Silkscreen or Top Overlay Layers • Drill guides

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