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US Patent 7115837 - Selective reflectivity process chamber with customized wavelength response and method

US Patent Issued on October 3, 2006
Estimated Patent Expiration Date: Icon_subject July 28, 2023Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
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Abstract

A customizable chamber spectral response is described which can be used at least to tailor chamber performance for wafer heating, wafer cooling, temperature measurement, and stray light. In one aspect, a system is described for processing a treatment object having a given emission spectrum at a treatment object temperature which causes the treatment object to produce a treatment object radiated energy. The chamber responds in a first way to the heating arrangement radiated energy and in a second way to the treatment object radiated energy that is incident thereon. The chamber may respond in the first way by reflecting the majority of the heat source radiated energy and in the second way by absorbing the majority of the treatment object radiated energy. Different portions of the chamber may be treated with selectively reflectivity based on design considerations to achieve objectives with respect to a particular chamber performance parameter.

Other References

  • Knutson et al, Modeling Of Radiation Heat Transfer And Wafer Temperatures In A Complex Three-Dimensional Rapid Thermal Processing Chamber, Aug. 31, 1994, 2nd International Rapid Thermal Processing Conference, Monterey California.
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  • Gelpey et al, Process Control for a Rapid Optical Annealing System, 1986, Mat Res Soc Symp Proc, vol. 52, Materials Research Society.
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  • Blake et al, Slip Free Rapid Thermal Processing, 1987, Mat Res Soc Symp Proc, vol. 92, Materials Research Society.
  • Celler et al, Drift of Arsenic in SiO2 in a Lamp Furnace with a Built-in Temperature Gradient, 1987, Mat Res Soc Symp Proc, vol. 92, Materials Research Society.
  • Lord, Thermal and Stress Analysis of Semiconductor Wafers in a Rapid Thermal Processing Oven, Aug. 1988, IEEE Trnasactions on Semiconductor Manufacturing, vol. 1, No. 3, pp. 103-114.
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Inventors

Assignee

Application

No. 10629400 filed on 07/28/2003

US Classes:

219/405, Including heat energy reflecting or directing means219/390, Muffle-type enclosure219/411, With infrared generating means219/443.1, Exposed horizontal planar support surface for material to be heated (e.g., hot plate, etc.)219/543, Comprising coating printed or deposited on core sheath or support means118/724, By means to heat or cool118/725, Substrate heater118/50.1, With means to apply electrical and/or radiant energy to work and/or coating material118/728, Work support392/416, With chamber392/418With support for workpiece

Field of Search

219/390, Muffle-type enclosure219/405, Including heat energy reflecting or directing means219/411, With infrared generating means219/443.1, Exposed horizontal planar support surface for material to be heated (e.g., hot plate, etc.)219/444.1, Material is an electronic semiconductor device219/456.1, Ring having a flange overlaying hole in a surrounding support surface219/457.1, Having direct manually actuated electrical switch219/458.1, Having electrical connection219/459.1, Receptacle (e.g., socket, an insulator block, a terminal block, etc.)219/460.1, Heating element gapped from underside of the exposed horizontal support surface (e.g., ceramic plate, radiation-type, etc.)219/461.1, Support for the heating element219/462.1, Plural heating elements219/463.1, Formed by tubularly shaped heating unit219/464.1, Having plural tubular heating units219/465.1, Heating element contacting planar underside of the exposed horizontal planar support surface (e.g., sheet metal, etc.)219/466.1, Foil or film-type of heating element219/543, Comprising coating printed or deposited on core sheath or support means219/544, Element embedded within or completely surrounded by core, sheath, or support means219/546, Core, sheath, or support means for heating element219/547, Comprising material to be heated219/548, Of particular construction or material118/724, By means to heat or cool118/725, Substrate heater118/50.1, With means to apply electrical and/or radiant energy to work and/or coating material392/416, With chamber392/418With support for workpiece

Examiners

Primary: Fuqua, Shawntina

Attorney, Agent or Firm

US Patent References

4579080, Induction heated reactor system for chemical vapor deposition
Issued on: 04/01/1986
Inventor: Martin ,   et al.
4938815, Semiconductor substrate heater and reactor process and apparatus
Issued on: 07/03/1990
Inventor: McNeilly
5219786, Semiconductor layer annealing method using excimer laser
Issued on: 06/15/1993
Inventor: Noguchi
5561735, Rapid thermal processing apparatus and method
Issued on: 10/01/1996
Inventor: Camm
5874711, Apparatus and method for determining the temperature of a radiating surface
Issued on: 02/23/1999
Inventor: Champetier, et al.
5960158, Apparatus and method for filtering light in a thermal processing chamber
Issued on: 09/28/1999
Inventor: Gat, et al.
5971565, Lamp system with conditioned water coolant and diffuse reflector of polytetrafluorethylene(PTFE)
Issued on: 10/26/1999
Inventor: Zapata, et al.
5997175, Method for determining the temperature of a semi-transparent radiating body
Issued on: 12/07/1999
Inventor: Champetier, et al.
6027244, Apparatus for determining the temperature of a semi-transparent radiating body
Issued on: 02/22/2000
Inventor: Champetier, et al.
6047107, Furnace for rapid thermal processing with optical switching film disposed between heater and reflector
Issued on: 04/04/2000
Inventor: Roozeboom, et al.
6056434, Apparatus and method for determining the temperature of objects in thermal processing chambers
Issued on: 05/02/2000
Inventor: Champetier
6067931, Thermal processor for semiconductor wafers
Issued on: 05/30/2000
Inventor: Ghezzo, et al.
6127658Wafer heating apparatus and method with radiation absorptive peripheral barrier blocking stray radiation
Issued on: 10/03/2000
Inventor: Kohav

Foreign Patent References

  • WO 03/060447 WO 07/01/2003

International Classes

F27B 5/14
F26B 19/00

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