PCB Layout CAD : Design Preparation

Creating Various Keep Out Areas

Next, create various Keep Out Areas.
With Quadcept, it is possible to create prohibition rules for "Component Height Restriction", "Drill Placement Restriction", and "Restricted Net Restriction".
When a target object overlaps with a Keep Out Area, it becomes a DRC error target.

Inputting Keep Out Areas
The following will explain how to input a Keep Out Area.
-1 Select [Create PCB]
=> [Polygon Keep Out Area].

=> You can also select "Rectangle Keep Out Area"/"Circle Keep Out Area".
-2 Input the Keep Out Area.
=> For more details about the drawing method, refer to Operations when Drawing Planes.
-3 The Keep Out Area will be drawn.
-4 Double-click the created Keep Out Area.
=> The Keep Out Area dialog will be displayed.
-5

From the Keep Out Area dialog, input the Keep Out Settings.

 


Keep Out Area Settings

Keep Out Settings
Item Content

Restrict Placing Drills

If there is a Drill in the area, it will be an error in the DRC.

Prohibit the Placement of Component

If a component is placed in the area, it will be an error in the DRC.
=> If the Component Height Restriction is "0", placement of all components will be prohibited.
=> If the Component Height Restriction is "3", placement of components with an Assembly Area height of 3 mm or higher will be prohibited.

Restrict Placing Net

If there is a route in the area, it will be an error in the DRC.
=> When Restricted Net is All, placement of all Routes/Plane will be prohibited.
=> When a particular Net is specified as Allowed Nets, placement of Routes/Planes with the specified Net will be permitted.


Layer Settings
Item Content

Target Layer 

Sets the Target Layers for the Keep Out Area.

Clearance Settings
Item Content

Additional Clearance

It is possible to set additional areas for the Keep Out Area.

Display Settings
Item Content  

Fill Style

It is possible to change the Fill Style on the PCB drawing.
It is possible to change the Fill Style according to the Type such as Vertical Line for Component Keep Out Area and Horizontal Line for Drill Keep Out Area.