When you select a process to add to your run, whether it is a modular process, a base process, or an uncharacterized process, you'll need to provide some details about exactly how you want the process to be used. Most processes have one or two input properties information that you should supply when you add the step. For example, most deposition processes have an input property Thickness, and most etch processes have Depth as an input property.

Out-of-spec input properties

For numeric input properties, the fab may supply constraints. For example, a process might be able to deposit 0 .. 2 µm of polysilicon. If you wanted to deposit 3 µm, a value that falls outside of the specified constraint, a warning will be displayed. You may enter values that are outside of the allowed range, or out-of-spec values, if you explicitly confirm that that is what you meant to say when the warning appears. The fab may or may not be able to carry out the process you requested; we'll ask them for you.