The names of the nodes to which the gate, source, and drain of the transistor are connected are given by gate, source, and drain respectively. The length and width of the transistor are given by length and width respectively. The area parameter, if given, will use that number as the area for calculating the gate capacitance. Length and width should be given in lambda units, area should be in lambda `units, these' will internally be multiplied by the LAMBDA factor from the configuration (.prm) file.
All perimeter values should be in lambda units, area values should be in lambda `units.' The perimeter measures are half of the actual total perimeter (i.e., they are the sum of the lengths of the top and one side). Again, the values may be negative to decrease the capacitance of the node.