Printed circuit boards (PCBs) are boards that mechanically support and electrically connect electronic components using conductive tracks etched onto a non-conductive substrate. The PCB design process involves schematic capture, schematic design, component placement, routing, generating fabrication files, and fabrication. PCBs can have multiple layers to minimize size and accommodate many connections. PCB design tools are used to lay out components, route connections, and generate output files for fabrication.

1. Printed Circuit Boards
and their Designs

2. What is Printed Circuit Board??

3. It’s simply known as PCB and actually a board that mechanically
supports and electrical connects electronic
components using conductive tracks, pads and other
features etched from copper sheets laminated onto a non-
conductive substrate. Components (e.g. capacitors, resistors or active
devices) are generally soldered on the PCB.

4. But in a simple language It is a mechanical solution to an
electrical problem.

5. Is this a
circuit??

6. PCB Design Process
Schematic
Capture
Schematic
Design
Component
Placement
Routing
Gerber
Generation
Fabrication

7. Schematic Capture
It is a process in which exact replica of an electronic component
along with schematic is created in the CAD Software and which known
as the library.
SMD Footprint PTH FootprintSchematic

8. Schematic Design
Schematic Design is the process in which electronic connections are
done between the different electronic components which is design
according to the application requirement.

9. Component Placement
It is the technique through which electronic components are place on
the virtual board according to the requirement of an applications which
takes minimum space and give good space for the routing.

10. Routing
It is a process in which traces are routed means conductive paths
are created for the different connections. And this is the main work of
a PCB Designer.

11. Points to be Remember
Length of paths should be minimum as possible.
Never take 90 degree turn in routing.
Minimum use of vias and jumpers.
Length of signal paths should be equal.

12. Gerber Generation
In this process separated files are generated for the each layer and for
every other task which is generally used in PCB(e.g Holes, Organisation
logo, Special Symbols, Mask, Pastes.)

13. PCB Fabrication
In this process, PCBs are fabricated and the type of fabrication is
depend on the no. of layers of PCBs and no. of PCBs to be fabricated.

14. Methods of Fabrication
Etching - easy and cost effective
Photographic - for high quality PCBs quickly and efficiently

15. Multilayer PCBs
Multilayers PCBs is the Real beauty of the PCB designing and PCB
Fabrication. Because the existence of PCBs into many layer creates the
gadgets and devices small.

16. And the amazing thing about multilayer PCBs is that it can
accommodate up to 16 Layers.

17. PCB Designing Tools

18. THANK YOU!