Patents by Inventor Paul D. Shirley
Paul D. Shirley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6576055Abstract: A method and apparatus for forming a generally uniform liquid layer on a surface of an upper surface microelectronic substrate. The apparatus can include a support that engages less than the entire lower surface of the microelectronic substrate and rotates the microelectronic substrate at a selected rate. A barrier can extend over the upper surface of the microelectronic substrate and can rotate at about the same rate as the substrate to separate a rotating air mass adjacent to the upper surface and within the barrier from a stationary air mass external to the barrier. The rotating air mass can reduce the likelihood for liquid/air interface disturbances that create non-uniformities in the liquid layer. Accordingly, the method and apparatus can increase the range of thicknesses to which the liquid layer can be formed and can reduce the topographical non-uniformities of the liquid layer.Type: GrantFiled: May 16, 2001Date of Patent: June 10, 2003Assignee: Micron Technology, Inc.Inventor: Paul D. Shirley
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Patent number: 6569241Abstract: In one aspect, the invention includes a method of improving uniformity of liquid deposition when a liquid is spin-coated over a non-circular substrate. The substrate is retained on a platform and spun. The circular platform includes a plurality of shaping members pivotally connected to the platform. The plurality of shaping members are biased by spinning the platform to form a platform surface with a circular periphery. In another aspect, the invention includes a substrate coating apparatus. Such apparatus comprises a non-circular substrate support configured to support a substrate with a planar surface and non-circular periphery. The apparatus further comprises a motor configured to spin the substrate support. A plurality of shaping members are pivotally connected with the substrate support and each shaping member has a curved outer side surface.Type: GrantFiled: May 30, 2002Date of Patent: May 27, 2003Assignee: Micron Technology, Inc.Inventors: Brian F. Gordon, Paul D. Shirley
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Patent number: 6555276Abstract: In one aspect, the invention includes a method of improving uniformity of liquid deposition when a liquid is spin-coated over a non-circular substrate. The substrate is retained on a platform and spun. The circular platform includes a plurality of shaping members pivotally connected to the platform. The plurality of shaping members are biased by spinning the platform to form a platform surface with a circular periphery. In another aspect, the invention includes a substrate coating apparatus. Such apparatus comprises a non-circular substrate support configured to support a substrate with a planar surface and non-circular periphery. The apparatus further comprises a motor configured to spin the substrate support. A plurality of shaping members are pivotally connected with the substrate support and each shaping member has a curved outer side surface.Type: GrantFiled: April 19, 2001Date of Patent: April 29, 2003Assignee: Micron Technology, Inc.Inventors: Brian F. Gordon, Paul D. Shirley
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Patent number: 6548111Abstract: A method and apparatus for controlling a temperature of a microelectronic substrate. In one embodiment, the apparatus can include a substrate support configured to engage and support the microelectronic substrate. The apparatus can further include a temperature controller having one or more thermal links coupled directly with the substrate when the substrate is supported by the substrate support. The thermal links can maintain thermal contact with the substrate when the substrate is either stationary or mobile relative to the temperature controller. The temperature controller can heat or cool different portions of the substrate at different rates with one or more of several heat transfer devices, including liquid jets, gas jets, resistive electrical elements and/or thermoelectric elements.Type: GrantFiled: November 21, 2000Date of Patent: April 15, 2003Assignee: Micron Technology, Inc.Inventor: Paul D. Shirley
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Patent number: 6482552Abstract: The invention encompasses a method of forming photoresist on a semiconductor wafer. A wafer is coated with a first layer of photoresist to define a first photoresist-coated wafer. The first photoresist-coated wafer is placed on a temperature-regulated mass and thermally equilibrated to a temperature. Subsequently, the first photoresist-coated wafer is photo-processed. After the photo-processing, the wafer is coated with a second layer of photoresist to define a second photoresist-coated wafer. The second photoresist-coated wafer is placed on the temperature-regulated mass and thermally equilibrated to the same temperature that the first photoresist-coated wafer had been equilibrated to. Subsequently, the second layer of photoresist is photo-processed. The invention also encompasses a reticle forming method. A layer of masking material is formed over a reticle substrate, and the reticle substrate is then placed on a temperature-regulated mass.Type: GrantFiled: October 18, 1999Date of Patent: November 19, 2002Assignee: Micron Technology, Inc.Inventors: Ziad R. Hatab, Paul D. Shirley, Tony C. Krauth
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Publication number: 20020148404Abstract: In one aspect, the invention includes a method of improving uniformity of liquid deposition when a liquid is spin-coated over a non-circular substrate. The substrate is retained on a platform and spun. The circular platform includes a plurality of shaping members pivotally connected to the platform. The plurality of shaping members are biased by spinning the platform to form a platform surface with a circular periphery. In another aspect, the invention includes a substrate coating apparatus. Such apparatus comprises a non-circular substrate support configured to support a substrate with a planar surface and non-circular periphery. The apparatus further comprises a motor configured to spin the substrate support. A plurality of shaping members are pivotally connected with the substrate support and each shaping member has a curved outer side surface.Type: ApplicationFiled: May 30, 2002Publication date: October 17, 2002Inventors: Brian F. Gordon, Paul D. Shirley
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Publication number: 20020136960Abstract: The invention encompasses a method of forming photoresist on a semiconductor wafer. A wafer is coated with a first layer of photoresist to define a first photoresist-coated wafer. The first photoresist-coated wafer is placed on a temperature-regulated mass and thermally equilibrated to a temperature. Subsequently, the first photoresist-coated wafer is photo-processed. After the photo-processing, the wafer is coated with a second layer of photoresist to define a second photoresist-coated wafer. The second photoresist-coated wafer is placed on the temperature-regulated mass and thermally equilibrated to the same temperature that the first photoresist-coated wafer had been equilibrated to. Subsequently, the second layer of photoresist is photo-processed. The invention also encompasses a reticle forming method. A layer of masking material is formed over a reticle substrate, and the reticle substrate is then placed on a temperature-regulated mass.Type: ApplicationFiled: October 18, 1999Publication date: September 26, 2002Inventors: ZIAD R. HATAB, PAUL D. SHIRLEY, TONY C. KRAUTH
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Patent number: 6398868Abstract: In one aspect, the invention includes a method of improving uniformity of liquid deposition when a liquid is spin-coated over a non-circular substrate. The substrate is retained on a platform and spun. The circular platform includes a plurality of shaping members pivotally connected to the platform. The plurality of shaping members are biased by spinning the platform to form a platform surface with a circular periphery. In another aspect, the invention includes a substrate coating apparatus. Such apparatus comprises a non-circular substrate support configured to support a substrate with a planar surface and non-circular periphery. The apparatus further comprises a motor configured to spin the substrate support. A plurality of shaping members are pivotally connected with the substrate support and each shaping member has a curved outer side surface.Type: GrantFiled: July 25, 2000Date of Patent: June 4, 2002Assignee: Micron Technology, Inc.Inventors: Brian F. Gordon, Paul D. Shirley
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Publication number: 20020002944Abstract: A method and apparatus for controlling a temperature of a microelectronic substrate. In one embodiment, the apparatus can include a substrate support configured to engage and support the microelectronic substrate. The apparatus can further include a temperature controller having one or more thermal links coupled directly with the substrate when the substrate is supported by the substrate support. The thermal links can maintain thermal contact with the substrate when the substrate is either stationary or mobile relative to the temperature controller. The temperature controller can heat or cool different portions of the substrate at different rates with one or more of several heat transfer devices, including liquid jets, gas jets, resistive electrical elements and/or thermoelectric elements.Type: ApplicationFiled: August 7, 2001Publication date: January 10, 2002Inventor: Paul D. Shirley
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Patent number: 6322626Abstract: A method and apparatus for controlling a temperature of a microelectronic substrate. In one embodiment, the apparatus can include a substrate support configured to engage and support the microelectronic substrate. The apparatus can further include a temperature controller having one or more thermal links coupled directly with the substrate when the substrate is supported by the substrate support. The thermal links can maintain thermal contact with the substrate when the substrate is either stationary or mobile relative to the temperature controller. The temperature controller can heat or cool different portions of the substrate at different rates with one or more of several heat transfer devices, including liquid jets, gas jets, resistive electrical elements and/or thermoelectric elements.Type: GrantFiled: June 8, 1999Date of Patent: November 27, 2001Assignee: Micron Technology, Inc.Inventor: Paul D. Shirley
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Publication number: 20010038955Abstract: The invention encompasses a method of forming photoresist on a semiconductor wafer. A wafer is coated with a first layer of photoresist to define a first photoresist-coated wafer. The first photoresist-coated wafer is placed on a temperature-regulated mass and thermally equilibrated to a temperature. Subsequently, the first photoresist-coated wafer is photo-processed. After the photo-processing, the wafer is coated with a second layer of photoresist to define a second photoresist-coated wafer. The second photoresist-coated wafer is placed on the temperature-regulated mass and thermally equilibrated to the same temperature that the first photoresist-coated wafer had been equilibrated to. Subsequently, the second layer of photoresist is photo-processed. The invention also encompasses a reticle forming method. A layer of masking material is formed over a reticle substrate, and the reticle substrate is then placed on a temperature-regulated mass.Type: ApplicationFiled: June 27, 2001Publication date: November 8, 2001Inventors: Ziad R. Hatab, Paul D. Shirley, Tony C. Krauth
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Publication number: 20010023137Abstract: In one aspect, the invention includes a method of improving uniformity of liquid deposition when a liquid is spin-coated over a noncircular substrate. The substrate is retained on a platform and spun. The circular platform includes a plurality of shaping members pivotally connected to the platform. The plurality of shaping members are biased by spinning the platform to form a platform surface with a circular periphery. In another aspect, the invention includes a substrate coating apparatus. Such apparatus comprises a non-circular substrate support configured to support a substrate with a planar surface and non-circular periphery. The apparatus further comprises a motor configured to spin the substrate support. A plurality of shaping members are pivotally connected with the substrate support and each shaping member has a curved outer side surface.Type: ApplicationFiled: April 19, 2001Publication date: September 20, 2001Inventors: Brian F. Gordon, Paul D. Shirley
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Publication number: 20010020443Abstract: A method and apparatus for forming a generally uniform liquid layer on a surface of an upper surface microelectronic substrate. The apparatus can include a support that engages less than the entire lower surface of the microelectronic substrate and rotates the microelectronic substrate at a selected rate. A barrier can extend over the upper surface of the microelectronic substrate and can rotate at about the same rate as the substrate to separate a rotating air mass adjacent to the upper surface and within the barrier from a stationary air mass external to the barrier. The rotating air mass can reduce the likelihood for liquid/air interface disturbances that create non-uniformities in the liquid layer. Accordingly, the method and apparatus can increase the range of thicknesses to which the liquid layer can be formed and can reduce the topographical non-uniformities of the liquid layer.Type: ApplicationFiled: May 16, 2001Publication date: September 13, 2001Inventor: Paul D. Shirley
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Patent number: 6261635Abstract: A method for forming a generally uniform liquid layer on a surface of an upper surface microelectronic substrate. The apparatus can include a support that engages less than the entire lower surface of the microelectronic substrate and rotates the microelectronic substrate at a selected rate. A barrier can extend over the upper surface of the microelectronic substrate and can rotate at about the same rate as the substrate to separate a rotating air mass adjacent to the upper surface and within the barrier from a stationary air mass external to the barrier. The rotating air mass can reduce the likelihood for liquid/air interface disturbances that create non-uniformities in the liquid layer. Accordingly, the method can increase the range of thicknesses to which the liquid layer can be formed and can reduce the topographical non-uniformities of the liquid layer.Type: GrantFiled: August 27, 1999Date of Patent: July 17, 2001Assignee: Micron Technology, Inc.Inventor: Paul D. Shirley
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Publication number: 20010002339Abstract: In one aspect, the invention includes a method of improving uniformity of liquid deposition when a liquid is spin-coated over a non-circular substrate. The substrate is retained on a platform and spun. The circular platform includes a plurality of shaping members pivotally connected to the platform. The plurality of shaping members are biased by spinning the platform to form a platform surface with a circular periphery. In another aspect, the invention includes a substrate coating apparatus. Such apparatus comprises a non-circular substrate support configured to support a substrate with a planar surface and non-circular periphery. The apparatus further comprises a motor configured to spin the substrate support. A plurality of shaping members are pivotally connected with the substrate support and each shaping member has a curved outer side surface.Type: ApplicationFiled: October 4, 1999Publication date: May 31, 2001Inventors: BRIAN F. GORDON, PAUL D. SHIRLEY
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Patent number: 6232247Abstract: In one aspect, the invention includes a method of improving uniformity of liquid deposition when a liquid is spin-coated over a non-circular substrate. The substrate is retained on a platform and spun. The circular platform includes a plurality of shaping members pivotally connected to the platform. The plurality of shaping members are biased by spinning the platform to form a platform surface with a circular periphery. In another aspect, the invention includes a substrate coating apparatus. Such apparatus comprises a non-circular substrate support configured to support a substrate with a planar surface and non-circular periphery. The apparatus further comprises a motor configured to spin the substrate support. A plurality of shaping members are pivotally connected with the substrate support and each shaping member has a curved outer side surface.Type: GrantFiled: October 4, 1999Date of Patent: May 15, 2001Assignee: Micron Technology, Inc.Inventors: Brian F. Gordon, Paul D. Shirley
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Patent number: 5925410Abstract: A method for forming a layer of material, particularly a dielectric material, on a substrate includes the steps of dispensing the material onto the substrate, spinning the substrate to produce a layer of the dispensed material, and vibrating the substrate to eliminate voids and/or gaps in the dispensed material. The dispensed material is hardened and if not sufficiently planar, may be subjected to a planarization step.Type: GrantFiled: May 6, 1997Date of Patent: July 20, 1999Assignee: Micron Technology, Inc.Inventors: Salman Akram, Paul D. Shirley, William T. Rericha