Adding a Pin

Pins that occur in both the schematic and the layout must have identical names. If you add pins that are not in the schematic to the layout, Layout XL maintains their connectivity in the layout.

To add a pin to the layout,

1. In the Palette Assistant, choose the layer on which you want to create the pin.
2. From the layout window menu bar, choose Create – Pin.
   The Create Pin form displays.
3. In the Terminal Names field, type the terminal name for the pin.
   The pin name must match the name of an existing net in the schematic. You can create more than one pin with the same name.
   To create a pin for a net that is not on the schematic (for example, a feedthrough), give the pin a new name.
4. In the I/O Type section, choose the appropriate I/O type.
5. In the layout canvas, click to place one corner of the pin; then click to place the opposite corner of the pin.
   The pin appears in the layout canvas. If the Annotation Browser assistant is showing incomplete nets, flight lines are drawn to show the pin connected to the net.

Do not place pins where you do not want to make a connection. For example, do not create a pin on polysilicon that covers the gate area of a FET.

You can also add pins defined with shapes. You can use any layer-purpose pair for pin shapes. Pins made as large as possible make routing easier.

Related Topics

Creating Pins

Create Pin Form

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