Patents by Inventor David A. Markle

David A. Markle 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).

  • Publication number: 20140353412
    Abstract: An herbal grinder and reservoir having a conical shape wherein said herbal grinder comprises a top grinding cap and a grinding section comprising a plurality of grinding knives; and wherein said grinding section comprises a plate having a drop through pattern for allowing ground material to exit the grinding section and fall into the reservoir.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Inventors: Matthew Grumbacher, David Markle
  • Publication number: 20140227890
    Abstract: Methods and apparatuses are provided for improving the intensity profile of a beam image used to process a semiconductor substrate. At least one photonic beam may be generated and manipulated to form an image having an intensity profile with an extended uniform region useful for thermally processing the surface of the substrate. The image may be scanned across the surface to heat at least a portion of the substrate surface to achieve a desired temperature within a predetermined dwell time. Such processing may achieve a high efficiency due to the large proportion of energy contained in the uniform portion of the beam.
    Type: Application
    Filed: April 15, 2014
    Publication date: August 14, 2014
    Applicant: ULTRATECH, INC.
    Inventors: Andrew M. Hawryluk, Boris Grek, David A. Markle
  • Patent number: 8742286
    Abstract: Methods and apparatuses are provided for improving the intensity profile of a beam image used to process a semiconductor substrate. At least one photonic beam may be generated and manipulated to form an image having an intensity profile with an extended uniform region useful for thermally processing the surface of the substrate. The image may be scanned across the surface to heat at least a portion of the substrate surface to achieve a desired temperature within a predetermined dwell time. Such processing may achieve a high efficiency due to the large proportion of energy contained in the uniform portion of the beam.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: June 3, 2014
    Assignee: Ultratech, Inc.
    Inventors: Andrew M Hawryluk, Boris Grek, David A Markle
  • Patent number: 8642232
    Abstract: Direct-write lithography apparatus and methods are disclosed in which a transducer image and an image of crossed interference fringe patterns are superimposed on a photoresist layer supported by a substrate. The transducer image has an exposure wavelength and contains bright spots, each corresponding to an activated pixel. The interference image has an inhibition wavelength and contains dark spots where the null points in the crossed interference fringes coincide. The dark spots are aligned with and trim the peripheries of the corresponding bright spot to form sub-resolution photoresist pixels having a size smaller than would be formed in the absence of the dark spots.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: February 4, 2014
    Assignee: Periodic Structures, Inc.
    Inventors: David A. Markle, Rudolf H. Hendel, John S. Petersen, Hwan J. Jeong
  • Publication number: 20130321786
    Abstract: A spatial light modulator imaging system is disclosed. The system comprises an illumination module configured to provide illumination light representing data patterns to be imaged by the spatial light modulator imaging system, a projection module configured to project the illumination light to a substrate, and an illumination-projection beam separator coupled between the illumination module and the projection module, where the illumination-projection beam separator is configured to receive the illumination light along an illumination optical axis and transmit the illumination light received to the projection module along a projection optical axis, and where the illumination optical axis and the projection optical axis are substantially parallel to each other.
    Type: Application
    Filed: June 4, 2013
    Publication date: December 5, 2013
    Inventors: David MARKLE, Thomas LAIDIG, Jeffrey KASKEY, Jang Fung CHEN
  • Publication number: 20130286179
    Abstract: Microscope apparatus and methods for imaging an object with a resolution beyond the Abbe limit are disclosed. The apparatus employs an object selectively patterned with a fluorescing material that is induced to fluoresce with one wavelength and inhibited from fluorescing with a second wavelength. Two orthogonal interference-fringe patterns are generated from four diffracted light beams of an inhibiting wavelength and superimposed on the object along with light that induces fluorescence. The interference-pattern image allows only sub-resolution-sized emission areas of the object to fluoresce. Multiple images of the fluorescing object are obtained, each corresponding to a slightly different position of the fringe patterns on the substrate. Each image is processed to yield a sparsely sampled super-resolution image. Multiple sparse images are interwoven to form a complete super-resolution image of the object.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 31, 2013
    Applicant: Periodic Structures, Inc.
    Inventors: David A. Markle, Hwan J. Jeong, John S. Petersen
  • Patent number: 8559014
    Abstract: High-resolution, common-path interferometric imaging systems and methods are described, wherein a light source generates and directs light toward a sample from different directions. An optical imaging system collects the resultant scattered and unscattered components. A variable phase shifting system adjusts the relative phase of the components. The interfered components are sensed by an image sensing system. The process is repeated multiple times with different phase shifts to form corresponding multiple electronic signals representative of raw sample images, which are processed by a signal processor to form a processed image. Multiple processed images, each corresponding to a different illumination azimuth angle, are combined to extend the system resolution.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: October 15, 2013
    Inventors: Hwan J. Jeong, David A. Markle
  • Publication number: 20130130182
    Abstract: Direct-write lithography apparatus and methods are disclosed in which a transducer image and an image of crossed interference fringe patterns are superimposed on a photoresist layer supported by a substrate. The transducer image has an exposure wavelength and contains bright spots, each corresponding to an activated pixel. The interference image has an inhibition wavelength and contains dark spots where the null points in the crossed interference fringes coincide. The dark spots are aligned with and trim the peripheries of the corresponding bright spot to form sub-resolution photoresist pixels having a size smaller than would be formed in the absence of the dark spots.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 23, 2013
    Applicant: Periodic Structures, Inc.
    Inventors: David A. Markle, Rudolf H. Hendel, John S. Petersen
  • Patent number: 8314360
    Abstract: Apparatuses and methods are provided for processing a substrate having an upper surface that includes a central region, a peripheral region, and an edge adjacent to the peripheral region. An image having an intensity sufficient to effect thermal processing of the substrate is scanned across the upper surface of the substrate. The image scanning geometry allows processing the central region of the substrate at a substantially uniform temperature without damaging the outer edge. In some instances, the image may be formed from a beam traveling over at least a portion of the central region so that no portion thereof directly illuminates any portion of the edge when the image is scanned across the periphery region. The substrate may be rotated 180° or the beam direction may be switched after part of the scanning operation has been completed.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: November 20, 2012
    Assignee: Ultratech, Inc.
    Inventors: Boris Grek, David A. Markle
  • Patent number: 8153930
    Abstract: Methods and apparatuses are provided for improving the intensity profile of a beam image used to process a semiconductor substrate. At least one photonic beam may be generated and manipulated to form an image having an intensity profile with an extended uniform region useful for thermally processing the surface of the substrate. The image may be scanned across the surface to heat at least a portion of the substrate surface to achieve a desired temperature within a predetermined dwell time. Such processing may achieve a high efficiency due to the large proportion of energy contained in the uniform portion of the beam.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: April 10, 2012
    Assignee: Ultratech, Inc.
    Inventors: Andrew M Hawryluk, Boris Grek, David A Markle
  • Publication number: 20110249071
    Abstract: Apparatuses and methods are provided for processing a substrate having an upper surface that includes a central region, a peripheral region, and an edge adjacent to the peripheral region. An image having an intensity sufficient to effect thermal processing of the substrate is scanned across the upper surface of the substrate. The image scanning geometry allows processing the central region of the substrate at a substantially uniform temperature without damaging the outer edge. In some instances, the image may be formed from a beam traveling over at least a portion of the central region so that no portion thereof directly illuminates any portion of the edge when the image is scanned across the periphery region. The substrate may be rotated 180° or the beam direction may be switched after part of the scanning operation has been completed.
    Type: Application
    Filed: June 20, 2011
    Publication date: October 13, 2011
    Applicant: ULTRATECH, INC.
    Inventors: Boris Grek, David A. Markle
  • Patent number: 7947968
    Abstract: Provided are apparatuses for processing a surface of a substrate using direct and recycled radiation reflected from the substrate. The apparatus includes a radiation source positioned to direct a radiation beam toward a beam image forming system that forms a beam image on the substrate surface and a recycling system. The recycling system collects radiation reflected from the substrate surface and redirects it back toward the beam image on the substrate in a +1× manner. As a result, radiation incident on and reflected from the substrate is recycled through multiple cycles. This improves the uniformity of the radiation absorbed by the substrate in instances where the thin film patterns on the substrate would otherwise result in non-uniform absorption and uneven heating. Exemplary recycling systems suitable for use with the invention include Offner and Dyson relay systems as well as variants thereof.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: May 24, 2011
    Assignee: Ultratech, Inc.
    Inventors: David A. Markle, Shiyu Zhang
  • Publication number: 20110075928
    Abstract: High-resolution, common-path interferometric imaging systems and methods are described, wherein a light source generates and directs light toward a sample. An optical imaging system collects the resultant substantially scattered component and substantially unscattered component. A variable phase shifting system is used to adjust the relative phase of the scattered and unscattered light components. The interfered components are sensed by an image sensing system. The process is repeated multiple times with different phase shifts to form corresponding multiple electronic signals representative of raw sample images. The raw sample images are then processed by a signal processor to form a processed image, where each image pixel has an amplitude and a phase. This picture can be displayed directly using some combination of brightness and color to represent amplitude and phase.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Inventors: Hwan J. Jeong, David A. Markle
  • Patent number: 7879741
    Abstract: Apparatus and method for performing laser thermal annealing (LTA) of a substrate using an annealing radiation beam that is not substantially absorbed in the substrate at room temperature. The method takes advantage of the fact that the absorption of long wavelength radiation (1 micron or greater) in some substrates, such as undoped silicon substrates, is a strong function of temperature. The method includes heating the substrate to a critical temperature where the absorption of long-wavelength annealing radiation is substantial, and then irradiating the substrate with the annealing radiation to generate a temperature capable of annealing the substrate.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: February 1, 2011
    Assignee: Ultratech, Inc.
    Inventors: Somit Talwar, Michael O. Thompson, Boris Grek, David A. Markle
  • Patent number: 7767927
    Abstract: Methods and apparatus for remotely measuring temperature of a specular surface. Method takes two measurements of P-polarized radiation emitted at or near Brewster angle from the surface. First measurement (SA) collects and detects first amount of radiation emitted directly from a surface portion using a collection optical system. Second measurement (SB) includes first amount of radiation and adds quantity of radiation collected at or near at/near Brewster angle and reflected from the surface with a retro optical system with a round-trip transmission t2 that retro-reflects a quantity of radiation received from surface portion back to same surface portion where it reflects and combines with first amount of radiation collected by collection optical system. Measurements SA and SB and t2 are used to determine surface emissivity (?). Calibration curve is used that relates ratio of the first measurement SA to surface emissivity (SA/?), to surface temperature.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: August 3, 2010
    Assignee: Ultratech, Inc.
    Inventor: David A. Markle
  • Patent number: 7763828
    Abstract: A method and apparatus for performing laser thermal processing (LTP) using a two-dimensional array of laser diodes to form a line image, which is scanned across a substrate. The apparatus includes a two-dimensional array of laser diodes, the radiation from which is collimated in one plane using a cylindrical lens array, and imaged onto the substrate as a line image using an anomorphic, telecentric optical imaging system. The apparatus also includes a scanning substrate stage for supporting a substrate to be LTP processed. The laser diode radiation beam is incident on the substrate at angles at or near the Brewster's angle for the given substrate material and the wavelength of the radiation beam, which is linearly P-polarized. The use of a two-dimensional laser diode array allows for a polarized radiation beam of relatively high energy density to be delivered to the substrate, thereby allowing for LTP processing with good uniformity, reasonably short dwell times, and thus reasonably high throughput.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: July 27, 2010
    Assignee: Ultratech, Inc.
    Inventors: Somit Talwar, David A. Markle
  • Patent number: 7744274
    Abstract: Provided is an apparatus for substrate processing. The apparatus may include a radiation source emitting a photonic beam, an optical system to form a beam image, a scanning stage, a temperature monitoring means, an output signal generator that compares the monitored temperature with a preset temperature, and a controller coupled to the radiation source and the stage. The stage may be adapted to scan the substrate so the beam image heats a region of the substrate surface, and the temperature monitoring means may collect and analyzes p-polarized radiation of at least three different spectral regions emitted from one or more places on the heated substrate region. The controller in response to a temperature error signal may be programmed to alter the beam intensity and/or to provide changes in the scanning velocity between the stage and the beam. Other apparatuses and temperature monitoring systems are provided as well.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: June 29, 2010
    Assignee: Ultratech, Inc.
    Inventors: Boris Grek, Michael Weitzel, David A. Markle
  • Patent number: 7731798
    Abstract: A chuck for supporting a wafer and maintaining a constant background temperature across the wafer during laser thermal processing (LTP) is disclosed. The chuck includes a heat sink and a thermal mass in the form of a heater module. The heater module is in thermal communication with the heat sink, but is physically separated therefrom by a thermal insulator layer. The thermal insulator maintains a substantially constant power loss at least equal to the maximum power delivered by the laser, less that lost by radiation and convection. A top plate is arranged atop the heater module, supports the wafer to be processed, and provides a contamination barrier. The heater module is coupled to a power supply that is adapted to provide varying amounts of power to the heater module to maintain the heater module at the constant background temperature even when the wafer experiences a spatially and temporally varying heat load from an LTP laser beam.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: June 8, 2010
    Assignee: Ultratech, Inc.
    Inventors: Iqbal A. Shareef, Igor Landau, David A. Markle, Somit Talwar, Michael O. Thompson, Ivelin A. Angelov, Senquan Zhou
  • Patent number: 7671966
    Abstract: Parallel data bus architecture, lithography system and method for substrate patterning with a high-resolution image by data generation transferring, display or printing high edge placement accuracy images from multiple exposures of plurality of predefined patterns with lower edge placement accuracy. Data bus architecture includes n predetermined patterns in n memory arrays each storing a low resolution pattern to be formed onto microelement array with a data bus connecting memory arrays to an image transducer memory array. Data bus includes switches allowing data transfer from any one memory array to the image transducer array with a memory control unit connected to memory arrays and one or more data bus switches so 2m?1 columns of pattern data stored in the mth memory array are sequentially transferred to 2m?1 memory cell columns of the image transducer memory array, m an integer begging at 1 incremented by 1 to n.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: March 2, 2010
    Assignee: Ultratech, Inc.
    Inventor: David A. Markle
  • Publication number: 20090095724
    Abstract: A method and apparatus for performing laser thermal processing (LTP) using one or more two-dimensional arrays of laser diodes and corresponding one or more LTP optical systems to form corresponding one or more line images. The line images are scanned across a substrate, e.g., by moving the substrate relative to the one or more line images. The apparatus also includes one or more recycling optical systems arranged to re-image reflected annealing radiation back onto the substrate. The use of one or more recycling optical systems greatly improves the heating efficiency and uniformity during LTP.
    Type: Application
    Filed: December 9, 2008
    Publication date: April 16, 2009
    Applicant: ULTRATECH, INC.
    Inventors: Somit Talwar, David A. Markle