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.

Creating Keep Out Areas
The following explains how to create a Keep Out Area.
(1) Select [Create PCB]
>> [Keep Out Area]
>> [Polygon Keep Out Area].

=> You can also select "Rectangle Keep Out Area"/"Circle Keep Out Area".
(2) Draw a Keep Out Area.
* For more details on how to draw, see Operations when Drawing Planes.
(3) Double-click the Keep Out Area you have created.
=> The Keep Out Area window will be displayed.
(4) Configure the keep out settings.
* For details on the keep out settings, see Keep Out Area Settings.

 


Keep Out Area Settings

Keep Out Settings
Item Description

Restrict Placing Drills

Enables to verify the existence of a drill in the area by DRC.

Prohibit the Placement of Component

Enables to verify the existence of a component in the area by DRC.
=> If the Component Height Restriction is set as "0", placement of all components will be prohibited.
=> If the Component Height Restriction is set as "3", placement of components with an Assembly Area height of more than 3 mm will be prohibited.

Restrict Placing Net

Enables to verify the existence of a net object in the area by DRC.
=> Specifying nets as Restricted Nets will prohibit the creation of routes/planes with the specified nets.
=> Specifying nets as Allowed Nets will allow the creation of routes/planes with the specified nets.


Layer Settings
Item Description

Target Layer 

Enables to set a target layers to place the Keep Out Area on.

Clearance Settings
Item Description

Additional Clearance

Enables to set additional clearance for the Keep Out Area.

Display Settings
Item Description  

Fill Style

Enables to change the fill style for the Keep Out Area. It can be changed on a Keep Out Area object basis.