Patent ID: 6665575
Filing Date: 2003-12-16
Classification: G05B,Y02P

Abstract:
A semiconductor-process recipe editor comprising:a data-presentation component having access to recipe data files, the recipe data files specifying process parameters including temperature, process time, flow rates, and power levels for fabrication equipment that form electrical circuits onto semiconductor wafers, the recipe data files computer-readable by the fabrication equipment; wherein the recipe data files are in various formats, each format specific to a specific process step performed by a piece of fabrication equipment; a display component for generating a visual display of values of the process parameters to a user; a behavioral component coupled to the data-presentation component, including: file-validator means for validating access to a recipe data file by a user; parameter-read means for reading a process parameter from the recipe data file at a location determined by a recipe data object model (R-DOM) file specific to the piece of fabrication equipment controlled by the recipe data file; parameter-display means, coupled to the parameter-read means to receive a process parameter from the parameter-read means, for sending the process parameter to the display component for display to the user; parameter-security means, activated when user requests to modify a selected process parameter, for reading a security indicator for the selected process parameter from the R-DOM file, the security indicator indicating when user has a security level sufficient to modify the selected process parameter, wherein the user is prevented from modifying the selected process parameter when the security indicator indicates that the user does not have sufficient security to modify the selected process parameter; parameter-edit means, activated when the parameter-security means clears the user to modify the selected process parameter, for displaying a dialog box on the display component, the dialog box allowing the user to select a new value for the selected process parameter; parameter-verify means, activated by the parameter-edit means when the user selects a new value, for validating that the new value is valid for the selected process parameter by comparing the new value to limits of the selected process parameter,and displaying an error when the new value is not valid; and parameter-write means, receiving the new value, for over-writing and existing value of the selected process parameter in the recipe data file with the new value at a location determined by the R-DOM file specific to the piece of fabrication equipment controlled by the recipe data file; whereby the recipe data file is directly written with new values of process parameters using the R-DOM file to determine the location of parameters in the recipe data file.