Patents by Inventor Deepkishore Mukhopadhyay
Deepkishore Mukhopadhyay 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: 11719719Abstract: A method of batch-fabricating an array of probe devices for a surface analysis instrument, such as an atomic force microscope (AFM), includes providing a wafer, and photolithographically forming a base and a cantilever for each probe. The cantilever includes a built-in angle, ?, relative to the base, and the base is substantially parallel to a sample holder when the probe device is mounted in a probe holder of the surface analysis instrument.Type: GrantFiled: June 16, 2021Date of Patent: August 8, 2023Assignee: Bruker Nano, Inc.Inventors: Jeffrey Wong, Joseph Fragala, Weijie Wang, Deepkishore Mukhopadhyay, Xing Zhao, Rakesh Poddar
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Patent number: 11644480Abstract: A probe assembly for a surface analysis instrument such as an atomic force microscope (AFM) that accommodates potential thermal drift effects includes a substrate defining a base of the probe assembly, a cantilever extending from the base and having a distal end, and a reflective pad disposed at or near the distal end. The reflective pad has a lateral dimension (e.g., length) between about twenty-five (25) microns, and can be less than a micron. Ideally, the reflective pad is patterned on the cantilever using photolithography. A corresponding method of manufacture of the thermally stable, drift resistant probe is also provided.Type: GrantFiled: August 3, 2018Date of Patent: May 9, 2023Assignee: Bruker Nano, Inc.Inventors: Jeffrey K. Wong, Deepkishore Mukhopadhyay
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Publication number: 20220404392Abstract: A method of batch-fabricating an array of probe devices for a surface analysis instrument, such as an atomic force microscope (AFM), includes providing a wafer, and photolithographically forming a base and a cantilever for each probe. The cantilever includes a built-in angle, ?, relative to the base, and the base is substantially parallel to a sample holder when the probe device is mounted in a probe holder of the surface analysis instrument.Type: ApplicationFiled: June 16, 2021Publication date: December 22, 2022Inventors: Jeffrey Wong, Joseph Fragala, Weijie Wang, Deepkishore Mukhopadhyay, Xing Zhao, Rakesh Poddar
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Publication number: 20200241038Abstract: A probe assembly for a surface analysis instrument such as an atomic force microscope (AFM) that accommodates potential thermal drift effects includes a substrate defining a base of the probe assembly, a cantilever extending from the base and having a distal end, and a reflective pad disposed at or near the distal end. The reflective pad has a lateral dimension (e.g., length) between about twenty-five (25) microns, and can be less than a micron. Ideally, the reflective pad is patterned on the cantilever using photolithography. A corresponding method of manufacture of the thermally stable, drift resistant probe is also provided.Type: ApplicationFiled: August 3, 2018Publication date: July 30, 2020Inventors: Jeffrey K. Wong, Deepkishore Mukhopadhyay
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Patent number: 9487002Abstract: Provided are high-resolution electrohydrodynamic inkjet (e-jet) printing systems and related methods for printing functional materials on a substrate surface. In an embodiment, a nozzle with an ejection orifice that dispenses a printing fluid faces a surface that is to be printed. The nozzle is electrically connected to a voltage source that applies an electric charge to the fluid in the nozzle to controllably deposit the printing fluid on the surface. In an aspect, a nozzle that dispenses printing fluid has a small ejection orifice, such as an orifice with an area less than 700 ?m2 and is capable of printing nanofeatures or microfeatures. In an embodiment the nozzle is an integrated-electrode nozzle system that is directly connected to an electrode and a counter-electrode. The systems and methods provide printing resolutions that can encompass the sub-micron range.Type: GrantFiled: April 14, 2015Date of Patent: November 8, 2016Assignee: The Board of Trustees of the University of IllinoisInventors: John A Rogers, Jang-Ung Park, Placid M. Ferreira, Deepkishore Mukhopadhyay
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Patent number: 9412480Abstract: A method and apparatus are provided for implementing Bragg-diffraction leveraged modulation of X-ray pulses using MicroElectroMechanical systems (MEMS) based diffractive optics. An oscillating crystalline MEMS device generates a controllable time-window for diffraction of the incident X-ray radiation. The Bragg-diffraction leveraged modulation of X-ray pulses includes isolating a particular pulse, spatially separating individual pulses, and spreading a single pulse from an X-ray pulse-train.Type: GrantFiled: May 9, 2013Date of Patent: August 9, 2016Assignee: uchicago Argonne, LLCInventors: Daniel Lopez, Gopal Shenoy, Jin Wang, Donald A. Walko, Il-Woong Jung, Deepkishore Mukhopadhyay
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Publication number: 20150290938Abstract: Provided are high-resolution electrohydrodynamic inkjet (e-jet) printing systems and related methods for printing functional materials on a substrate surface. In an embodiment, a nozzle with an ejection orifice that dispenses a printing fluid faces a surface that is to be printed. The nozzle is electrically connected to a voltage source that applies an electric charge to the fluid in the nozzle to controllably deposit the printing fluid on the surface. In an aspect, a nozzle that dispenses printing fluid has a small ejection orifice, such as an orifice with an area less than 700 ?m2 and is capable of printing nanofeatures or microfeatures. In an embodiment the nozzle is an integrated-electrode nozzle system that is directly connected to an electrode and a counter-electrode. The systems and methods provide printing resolutions that can encompass the sub-micron range.Type: ApplicationFiled: April 14, 2015Publication date: October 15, 2015Inventors: John A. ROGERS, Jang-Ung PARK, Placid M. FERREIRA, Deepkishore MUKHOPADHYAY
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Patent number: 9061494Abstract: Provided are high-resolution electrohydrodynamic inkjet (e-jet) printing systems and related methods for printing functional materials on a substrate surface. In an embodiment, a nozzle with an ejection orifice that dispenses a printing fluid faces a surface that is to be printed. The nozzle is electrically connected to a voltage source that applies an electric charge to the fluid in the nozzle to controllably deposit the printing fluid on the surface. In an aspect, a nozzle that dispenses printing fluid has a small ejection orifice, such as an orifice with an area less than 700 ?m2 and is capable of printing nanofeatures or microfeatures. In an embodiment the nozzle is an integrated-electrode nozzle system that is directly connected to an electrode and a counter-electrode. The systems and methods provide printing resolutions that can encompass the sub-micron range.Type: GrantFiled: August 30, 2007Date of Patent: June 23, 2015Assignee: The Board of Trustees of the University of IllinoisInventors: John A. Rogers, Jang-Ung Park, Placid M. Ferreira, Deepkishore Mukhopadhyay
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Patent number: 8976933Abstract: A method and apparatus are provided for spatially modulating X-rays or X-ray pulses using microelectromechanical systems (MEMS) based X-ray optics. A torsionally-oscillating MEMS micromirror and a method of leveraging the grazing-angle reflection property are provided to modulate X-ray pulses with a high-degree of controllability.Type: GrantFiled: September 27, 2011Date of Patent: March 10, 2015Assignee: UChicago Argonne, LLCInventors: Daniel Lopez, Gopal Shenoy, Jin Wang, Donald A. Walko, Il-Woong Jung, Deepkishore Mukhopadhyay
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Publication number: 20140334607Abstract: A method and apparatus are provided for implementing Bragg-diffraction leveraged modulation of X-ray pulses using MicroElectroMechanical systems (MEMS) based diffractive optics. An oscillating crystalline MEMS device generates a controllable time-window for diffraction of the incident X-ray radiation. The Bragg-diffraction leveraged modulation of X-ray pulses includes isolating a particular pulse, spatially separating individual pulses, and spreading a single pulse from an X-ray pulse-train.Type: ApplicationFiled: May 9, 2013Publication date: November 13, 2014Applicant: UChicago Argonne, LLCInventors: Daniel Lopez, Gopal Shenoy, Jin Wang, Donald A. Walko, Il-Woong Jung, Deepkishore Mukhopadhyay
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Patent number: 8574139Abstract: A machine tool having an automatic tool changer (ATC). The machine tool includes a gantry, a spindle extending from the gantry, a configurable work area, and an ATC adjacent to a front wall of the machine tool. The ATC includes a rotary tool magazine and a plurality of receptacles oriented radially around the rotary tool magazine configured to hold a plurality of cutting tools having cutting edges. The cutting edges of the cutting tools point radially inwardly around the rotary tool magazine, and the cutting tools are removed directly from the automatic tool changer by the spindle and brought to a part to be machined. A tool sensor may be located between the ATC and the spindle to take measurements of the cutting tool. The ATC includes at least one receptacle configured to hold a cutting tool.Type: GrantFiled: August 12, 2009Date of Patent: November 5, 2013Assignee: Microlution, Inc.Inventors: Andrew Honegger, Andrew Phillip, Deepkishore Mukhopadhyay, Abhinandan Tulsian, Elizabeth Creighton
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Publication number: 20130077759Abstract: A method and apparatus are provided for spatially modulating X-rays or X-ray pulses using microelectromechanical systems (MEMS) based X-ray optics. A torsionally-oscillating MEMS micromirror and a method of leveraging the grazing-angle reflection property are provided to modulate X-ray pulses with a high-degree of controllability.Type: ApplicationFiled: September 27, 2011Publication date: March 28, 2013Applicant: UCHICAGO ARGONNE, LLCInventors: Daniel Lopez, Gopal Shenoy, Jin Wang, Donald A. Walko, Il-Woong Jung, Deepkishore Mukhopadhyay
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Patent number: 8310128Abstract: MEMS stages comprising a plurality of comb drive actuators provide micro and up to nano-positioning capability. Flexure hinges and folded springs that operably connect the actuator to a movable end stage provide independent motion from each of the actuators that minimizes unwanted off-axis displacement, particularly for three-dimensional movement of a cantilever. Also provided are methods for using and making MEMS stages. In an aspect, a process provides a unitary MEMS stage made from a silicon-on-insulator wafer that avoids any post-fabrication assembly steps. Further provided are various devices that incorporate any of the stages disclosed herein, such as devices requiring accurate positioning systems in applications including scanning probe microscopy, E-jet printing, near-field optic sensing, cell probing and material characterization.Type: GrantFiled: May 7, 2009Date of Patent: November 13, 2012Assignee: The Board of Trustees of the University of IllinoisInventors: Placid M. Ferreira, Jingyan Dong, Deepkishore Mukhopadhyay
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Publication number: 20110187798Abstract: Provided are high-resolution electrohydrodynamic inkjet (e-jet) printing systems and related methods for printing functional materials on a substrate surface. In an embodiment, a nozzle with an ejection orifice that dispenses a printing fluid faces a surface that is to be printed. The nozzle is electrically connected to a voltage source that applies an electric charge to the fluid in the nozzle to controllably deposit the printing fluid on the surface. In an aspect, a nozzle that dispenses printing fluid has a small ejection orifice, such as an orifice with an area less than 700 ?m2 and is capable of printing nanofeatures or microfeatures. In an embodiment the nozzle is an integrated-electrode nozzle system that is directly connected to an electrode and a counter-electrode. The systems and methods provide printing resolutions that can encompass the sub-micron range.Type: ApplicationFiled: August 30, 2007Publication date: August 4, 2011Inventors: John A. Rogers, Jang-Ung Park, Placid M. Ferreira, Deepkishore Mukhopadhyay
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Publication number: 20110039670Abstract: A machine tool having an automatic tool changer (ATC). The machine tool includes a gantry, a spindle extending from the gantry, a configurable work area, and an ATC adjacent to a front wall of the machine tool. The ATC includes a rotary tool magazine and a plurality of receptacles oriented radially around the rotary tool magazine configured to hold a plurality of cutting tools having cutting edges. The cutting edges of the cutting tools point radially inwardly around the rotary tool magazine, and the cutting tools are removed directly from the automatic tool changer by the spindle and brought to a part to be machined. A tool sensor may be located between the ATC and the spindle to take measurements of the cutting tool. The ATC includes at least one receptacle configured to hold a cutting tool.Type: ApplicationFiled: August 12, 2009Publication date: February 17, 2011Applicant: MICROLUTION, INC.Inventors: Andrew Honegger, Andrew Phillip, Deepkishore Mukhopadhyay, Abhinandan Tulsian, Elizabeth Creighton
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Publication number: 20100001616Abstract: MEMS stages comprising a plurality of comb drive actuators provide micro and up to nano-positioning capability. Flexure hinges and folded springs that operably connect the actuator to a movable end stage provide independent motion from each of the actuators that minimizes unwanted off-axis displacement, particularly for three-dimensional movement of a cantilever. Also provided are methods for using and making MEMS stages. In an aspect, a process provides a unitary MEMS stage made from a silicon-on-insulator wafer that avoids any post-fabrication assembly steps. Further provided are various devices that incorporate any of the stages disclosed herein, such as devices requiring accurate positioning systems in applications including scanning probe microscopy, E-jet printing, near-field optic sensing, cell probing and material characterization.Type: ApplicationFiled: May 7, 2009Publication date: January 7, 2010Inventors: Placid M. FERREIRA, Jingyan DONG, Deepkishore MUKHOPADHYAY