Patents by Inventor John T. Davlin

John T. Davlin 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).

  • Patent number: 6946407
    Abstract: A method is provided for more efficient application of a polymeric coating (e.g., die coat) to a substrate (e.g., wafer) surface. One aspect of the method comprises applying an organic liquid (e.g., organic solvent) to the wafer and spinning it to coat the entire wafer surface prior to the application of die coat. This reduces surface tension on the wafer and reduces the amount of die coat required to achieve a high quality film.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: September 20, 2005
    Assignee: Micron Technology, Inc.
    Inventors: John T. Davlin, Douglas S. Schramm, Lorna M. Mitson
  • Patent number: 6806209
    Abstract: A develop process for reduced cycle time and reduced defects in the develop process for semiconductor/IC fabrication is shown. The use of a linear slit scan nozzle provides even distribution of a layer of develop material within an acceptable thickness and uniformity range such that a pre-wet step is not needed to spread the develop material evenly over the surface of a wafer. The use of a whip operation prior to rinsing with DI water significantly reduces develop defects.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: October 19, 2004
    Assignee: Micron Technology, Inc.
    Inventors: John T. Davlin, Greg Montanino
  • Patent number: 6784120
    Abstract: A method is provided for more efficient application of a polymeric coating (e.g., die coat) to a substrate (e.g., wafer) surface. One aspect of the method comprises applying an organic liquid (e.g., organic solvent) to the wafer and spinning it to coat the entire wafer surface prior to the application of die coat. This reduces surface tension on the wafer and reduces the amount of die coat required to achieve a high quality film.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: August 31, 2004
    Assignee: Micron Technology, Inc.
    Inventors: John T. Davlin, Douglas S. Schramm, Lorna M. Mitson
  • Publication number: 20040157471
    Abstract: A method is provided for more efficient application of a polymeric coating (e.g., die coat) to a substrate (e.g., wafer) surface. One aspect of the method comprises applying an organic liquid (e.g., organic solvent) to the wafer and spinning it to coat the entire wafer surface prior to the application of die coat. This reduces surface tension on the wafer and reduces the amount of die coat required to achieve a high quality film.
    Type: Application
    Filed: February 3, 2004
    Publication date: August 12, 2004
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: John T. Davlin, Douglas S. Schramm, Lorna M. Mitson
  • Publication number: 20040146648
    Abstract: A method for dispensing a flowable substance, such as a flowable photoresist, on a microelectronic substrate. The method can include dispensing a portion of the flowable substance on the microelectronic substrate, receiving an image of at least some of the flowable substance on the microelectronic substrate, and, (with reference to the image), comparing a characteristic of the image with a pre-selected characteristic, or comparing a time required to dispense the portion of the flowable substance with a pre-selected, or both. The method can further include adjusting a characteristic of the dispense process when the image differs from the pre-selected image by at least a predetermined amount, or when the time differs from the pre-selected time by at least a predetermined amount, or both.
    Type: Application
    Filed: December 10, 2003
    Publication date: July 29, 2004
    Inventors: John T. Davlin, Greg Montanino
  • Patent number: 6680078
    Abstract: A method for dispensing a flowable substance, such as a flowable photoresist, on a microelectronic substrate. The method can include dispensing a portion of the flowable substance on the microelectronic substrate, receiving an image of at least some of the flowable substance on the microelectronic substrate, and, (with reference to the image), comparing a characteristic of the image with a pre-selected characteristic, or comparing a time required to dispense the portion of the flowable substance with a pre-selected, or both. The method can further include adjusting a characteristic of the dispense process when the image differs from the pre-selected image by at least a predetermined amount, or when the time differs from the pre-selected time by at least a predetermined amount, or both.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: January 20, 2004
    Assignee: Micron Technology, Inc.
    Inventors: John T. Davlin, Greg Montanino
  • Publication number: 20030203651
    Abstract: A develop process for reduced cycle time and reduced defects in the develop process for semiconductor/IC fabrication is shown. The use of a linear slit scan nozzle provides even distribution of a layer of develop material within an acceptable thickness and uniformity range such that a pre-wet step is not needed to spread the develop material evenly over the surface of a wafer. The use of a whip operation prior to rinsing with DI water significantly reduces develop defects.
    Type: Application
    Filed: May 1, 2003
    Publication date: October 30, 2003
    Applicant: Micron Technology, Inc.
    Inventors: John T. Davlin, Greg Montanino
  • Publication number: 20030084852
    Abstract: The present invention relates to temperature control elements, spindle assemblies, and wafer processing assemblies. According to one embodiment of the present invention, a wafer processing assembly is provided comprising a rotary spindle assembly, at least one liquid source, a controller, a wafer support, and a wafer processing bowl. The rotary spindle assembly comprises a rotary drive motor, a rotary spindle coupled to the rotary drive motor, a heat regulating element arranged about the rotary spindle, and a heat regulating flange secured to the rotary drive motor. The controller is coupled to the liquid source and a temperature sensor coupled to one or both of the heat regulating element and the heat regulating flange and is programmed to be responsive to a temperature signal generated by the temperature sensor.
    Type: Application
    Filed: December 16, 2002
    Publication date: May 8, 2003
    Inventors: John T. Davlin, Greg Montanino
  • Patent number: 6559072
    Abstract: A develop process for reduced cycle time and reduced defects in the develop process for semiconductor/IC fabrication is shown. The use of a linear slit scan nozzle provides even distribution of a layer of develop material within an acceptable thickness and uniformity range such that a pre-wet step is not needed to spread the develop material evenly over the surface of a wafer. The use of a whip operation prior to rinsing with DI water significantly reduces develop defects.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: May 6, 2003
    Assignee: Micron Technology, Inc.
    Inventors: John T. Davlin, Greg Montanino
  • Publication number: 20030045127
    Abstract: A develop process for reduced cycle time and reduced defects in the develop process for semiconductor/IC fabrication is shown. The use of a linear slit scan nozzle provides even distribution of a layer of develop material within an acceptable thickness and uniformity range such that a pre-wet step is not needed to spread the develop material evenly over the surface of a wafer. The use of a whip operation prior to rinsing with DI water significantly reduces develop defects.
    Type: Application
    Filed: August 30, 2001
    Publication date: March 6, 2003
    Inventors: John T. Davlin, Greg Montanino
  • Publication number: 20030012868
    Abstract: A method for disposing a flowable substance, such as a flowable photoresist, on a microelectronic substrate. The method can include dispensing a portion of the flowable substance on the microelectronic substrate, receiving an image of at least some of the flowable substance on the microelectronic substrate, and, (with reference to the image), comparing a characteristic of the image with a pre-selected characteristic, or comparing a time required to dispense the portion of the flowable substance with a pre-selected, or both. The method can further include adjusting a characteristic of the dispense process when the image differs from the pre-selected image by at least a predetermined amount, or when the time differs from the pre-selected time by at least a predetermined amount, or both.
    Type: Application
    Filed: July 11, 2001
    Publication date: January 16, 2003
    Inventors: John T. Davlin, Greg Montanino
  • Publication number: 20020168874
    Abstract: A method is provided for more efficient application of a polymeric coating (e.g., die coat) to a substrate (e.g., wafer) surface. One aspect of the method comprises applying an organic liquid (e.g., organic solvent) to the wafer and spinning it to coat the entire wafer surface prior to the application of die coat. This reduces surface tension on the wafer and reduces the amount of die coat required to achieve a high quality film.
    Type: Application
    Filed: June 28, 2002
    Publication date: November 14, 2002
    Applicant: Micron Technologies, Inc.
    Inventors: John T. Davlin, Douglas S. Schramm, Lorna M. Mitson
  • Patent number: 6461983
    Abstract: A method is provided for more efficient application of a polymeric coating (e.g., die coat) to a substrate (e.g., wafer) surface. One aspect of the method comprises applying an organic liquid (e.g., organic solvent) to the wafer and spinning it to coat the entire wafer surface prior to the application of die coat. This reduces surface tension on the wafer and reduces the amount of die coat required to achieve a high quality film.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: October 8, 2002
    Assignee: Micron Technology, Inc.
    Inventors: John T. Davlin, Douglas S. Schramm, Lorna M. Mitson
  • Patent number: 6221157
    Abstract: An apparatus for exhausting coating materials used in the process of spin coating a top surface of a wafer, the wafer having an edge and a bottom surface that is supported and rotated by a rotatable chuck attached by a shaft to a spin motor. The apparatus includes a bowl having an exhausted drain configured to receive excess liquid and vapor from the spin coating and an assembly configured to maintain the drain at a negative pressure differential relative to the bowl. In a preferred embodiment, a baffle is attached to the bottom to limit the flow of the liquid and vapor into the drain to a predetermined direction.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: April 24, 2001
    Assignee: Micron Technology, Inc.
    Inventors: Shawn D. Davis, John S. Molebash, Bruce L. Hayes, John T. Davlin
  • Patent number: 6162294
    Abstract: An apparatus for exhausting coating materials used in the process of spin coating a top surface of a wafer, the wafer having an edge and a bottom surface that is supported and rotated by a rotatable chuck attached by a shaft to a spin motor. The apparatus includes a bowl having an exhausted drain configured to receive excess liquid and vapor from the spin coating and an assembly configured to maintain the drain at a negative pressure differential relative to the bowl. In a preferred embodiment, a baffle is attached to the bottom to limit the flow of the liquid and vapor into the drain to a predetermined direction.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: December 19, 2000
    Assignee: Micron Technology, Inc.
    Inventors: Shawn D. Davis, John S. Molebash, Bruce L. Hayes, John T. Davlin
  • Patent number: 6132802
    Abstract: Methods for exhausting coating materials used in the process of spin coating a top surface of a wafer, the wafer having an edge and a bottom surface that is supported and rotated by a rotatable chuck attached by a shaft to a spin motor. The apparatus includes a bowl having an exhausted drain configured to receive excess liquid and vapor from the spin coating and an assembly configured to maintain the drain at a negative pressure differential relative to the bowl. In a preferred embodiment, a baffle is attached to the bottom to limit the flow of the liquid and vapor into the drain to a predetermined direction.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: October 17, 2000
    Assignee: Micron Technology, Inc.
    Inventors: Shawn D. Davis, John S. Molebash, Bruce L. Hayes, John T. Davlin