Patent ID: 7700376
Filing Date: 2010-04-20
Classification: H01L

Abstract:
1. A compensation method in the thermal processing of production substrates within a processing chamber including an array of incandescent lamps, comprising the steps of: (a0) an initial step of thermally processing in the processing chamber a reference substrate supported on a single-wafer support in opposition to the array of incandescent lamps; (a) then thermally processing in the processing chamber a plurality of production substrates successively supported on the single-substrate support according to a production recipe; (b) thereafter thermally processing in the processing chamber a monitor substrate similar to the reference substrate, of less horizontal structural complexity than the production substrates, and supported on the single-substrate support in the processing chamber according to a test recipe incorporating part of the production recipe including a distribution of power to the lamps arranged in the radial zones; (c) adjusting the production recipe in the processing chamber according to a profile of measured values across the processed monitor wafer, wherein the adjusting step compares the profile of measured values across the monitor substrate to a profile of measured values across the reference substrate; and (d) repeating step (a) with another production substrate according to the adjusted production recipe.