Patent ID: 6438441
Filing Date: 2002-08-20
Classification: G05B,H01L,Y02P

Abstract:
An apparatus for resetting a process recipe, comprising:a semiconductor processing means for processing at least one lot of semiconductor wafers according to the process recipe previously set, wherein the process recipe represents a set of semiconductor process conditions corresponding to the lot of semiconductor wafers; a semiconductor measuring means for measuring the processed lot of semiconductor wafers to generate semiconductor measurement data; a writing means for writing the semiconductor measurement data to a trace file, wherein the trace file includes the process recipe, the semiconductor measurement data and a lot identifier corresponding to the lot of semiconductor wafers; and an operator interface means for interfacing with an operator, said operator interface means including: a sending means for sending the process recipe and the lot identifier inputted from the operator to said semiconductor processing means; a retrieving means for retrieving the semiconductor measurement data contained in the trace file in response to a retrieval command inputted from the operator; and a resetting means for resetting the process recipe in response to a reset command inputted from the operator if the process recipe is not conformable, wherein the operator compares reference data with the retrieved semiconductor measurement data to determine whether the process recipe is conformable.