Patent ID: 6424880
Filing Date: 2002-07-23
Classification: G05B,Y02P

Abstract:
A method for controlling at least a first and second function performed by a wafer processing chamber, wherein a first processor controls the first function and a second processor controls the second function, the method comprising the steps of:(1) accessing or receiving a recipe containing one or more instructions used for controlling the wafer processing chamber, wherein at least one of said instructions contains a function to be performed by the wafer processing chamber; (2) receiving an indication that a wafer to be processed has been or will be loaded into the wafer processing chamber; (3) obtaining a next instruction, from said one or more instructions; (4) determining, in accordance with said instruction of said step (3), a function to be performed by the wafer processing chamber; (5) when the function of said step (4) to be performed is said first function, using the first processor to induce the wafer processing chamber to perform said first function, and when the function of said step (4) to be performed is said second function, using the second processor to induce the wafer processing chamber to perform said second function, (6) upon determining that a last instruction of said one or more instructions in said recipe has not been implemented, returning to said step (3).