PCB layout designing is not an easy task as it looks like. There are lots of process and requirements which we need to know before designing a PCB layout. In this article I am going to introduce basic requirements of PCB Layout design

Actually there are lot of companies which do not have their PCB layout designer. They usually hire them for a particular project for a month or two or depend on their requirement. so for layout designer that particular company is called client. The designer has to design the board as per the client requirement.

Basic requirements for designing a layout for a layout designer are following ..

Schematic Diagram- It's a drawing showing all significant components, parts or tasks of a circuit, device, flow process or project by mean of standard project. It  depends on the hardware engineer whether they are giving the hard copy or soft copy of schematic to the layout designer. if it's a soft copy than layout engineer can directly start the work without creating schematic in EDA tool like OrCad, PADS logic etc.. But if the client has provide hard copy of schematic to the layout engineer than the Layout engineer has to draw it using OrCad or any other tool which his client is comfortable with.

Bill Of Material(BOM)-  BOM is the list of the parts or components including all the description of the component which are going to use in PCB. we can generate BOM from the schematic itself. Components and Package can be decided by the hardware engineer. BOM plays very important role in PCB layout because it contains lots of information like Part no., Manufacture details, Package etc.. so if any wrong description is provided in the BOM the same thing will appear on the board.

Footprint (Decal) creation- Footprint refers to the Physical layout that is required on the Printed circuit board in order to mount a component or physical attachment. It can be through hole or SMD(surface mounted Device).Layout engineer has to create footprint as per the Datasheet.

Mechanical data(DXF) - For creating board outline PCB Layout Engineer need DXF file which he can import in CAD tool. It has to provided by Mechanical Person of client place. If DXF file is not available then layout engineer has to draw manually as per the board size given by the client. After that he has to fix Mounting holes if it is there in the board.

These are the brief description for the Layout designing. I will discus all these topics in details on my next post. My blog is basically to help the beginners who is interested in PCB designing.

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