Automatically routing nets with variable spacing

A method comprising:

• providing a layout of a circuit design;
• providing a plurality of pins of the layout to be routed together using a net, a first pin having a first value associated with it and a second pin having a second value associated with it, wherein the first value is greater than the second value;
• and
• using at least one processor, automatically generating a first track between the first and second pins, wherein the first track has a tapered width so a first end of the first track has a width greater than a second end of the first track, and the first end is coupled to the first pin and the second end is coupled to the second pin.

A method comprising:

• providing a plurality of pins of a layout to be routed together using a net, each pin having a pin value associated with it;
• using at least one pin value, determining a first requirement for a first track segment of the net;
• determining a first track width for at least a portion of the first track segment of the net based on the first requirement;
• and
• using at least one processor, performing an automatic routing of the net using the first track segment, wherein at least a portion of the automatically routed first track segment has the first track width, and a portion of the first track segment has another track width, different from the first track width.