Patents by Inventor Kanti Jain

Kanti Jain 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: 20090296188
    Abstract: In an aspect, described herein is a dynamically controllable optoelectronic smart window which utilizes a diffraction grating for selective transmission or rejection of a specific region of the electromagnetic spectrum, for example the infrared, near-infrared and/or visible regions. Window embodiments described herein may further utilize a selectively controlled and/or patterned total internal reflection layer to assist with the selective rejection of a specific spectral region while allowing for transmission of another specific spectral region. In another aspect, the present invention provides methods for dynamically controlling the transmission or rejection of solar near-infrared and/or visible radiation.
    Type: Application
    Filed: August 29, 2008
    Publication date: December 3, 2009
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: Kanti Jain, Linus Jang, Yoon Soo Han
  • Publication number: 20090239042
    Abstract: This invention provides photoablation—based processing techniques and materials strategies for making, assembling and integrating patterns of materials for the fabrication of electronic, optical and opto-electronic devices. Processing techniques of the present invention enable high resolution and/or large area patterning and integration of porous and/or nano- or micro-structured materials comprising active or passive components of a range of electronic devices, including integrated circuits (IC), microelectronic and macroelectronic systems, microfluidic devices, biomedical devices, sensing devices and device arrays, and nano- and microelectromechanical systems.
    Type: Application
    Filed: March 21, 2008
    Publication date: September 24, 2009
    Inventors: Kanti JAIN, Junghun CHAE
  • Publication number: 20090023098
    Abstract: This invention provides processing steps, methods and materials strategies for making patterns of structures for integrated electronic devices and systems. Processing methods of the present invention are capable of making micro-and nano-scale structures, such as Dual Damascene profiles, recessed features and interconnect structures, having non-uniform cross-sectional geometries useful for establishing electrical contact between device components of an electronic device. The present invention provides device fabrication methods and processing strategies using sub pixel-voting lithographic patterning of a single layer of photoresist useful for fabricating and integrating multilevel interconnect structures for high performance electronic or opto-electronic devices, particularly useful for Very Large Scale Integrated (VLSI) and Ultra large Scale Integrated (ULSI) devices.
    Type: Application
    Filed: August 29, 2007
    Publication date: January 22, 2009
    Inventors: Kanti Jain, Uttam Reddy
  • Publication number: 20080251877
    Abstract: This invention provides processing steps, methods and materials strategies for making patterns of structures for electronic, optical and optoelectronic devices. Processing methods of the present invention are capable of making micro- and nano-scale electronic structures, such as T-gates, gamma gates, and shifted T-gates, having a selected non-uniform cross-sectional geometry. The present invention provides lithographic processing strategies for sub-pixel patterning in a single layer of photoresist useful for making and integrating device components comprising dielectric, conducting, metal or semiconductor structures having non-uniform cross-sectional geometries. Processing methods of the present invention are complementary to conventional microfabrication and nanofabrication platforms, and can be effectively integrated into existing photolithographic, etching and thin film deposition patterning strategies, systems and infrastructure.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 16, 2008
    Inventors: Kanti Jain, Uttam Reddy
  • Patent number: 7420730
    Abstract: An enhanced spatial light modulator (ESLM) array, a microelectronics patterning system and a projection display system using such an ESLM for heat-minimization and resolution enhancement during imaging, and the method for fabricating such an ESLM array. The ESLM array includes, in each individual pixel element, a small pixel mirror (reflective region) and a much larger pixel surround. Each pixel surround includes diffraction-grating regions and resolution-enhancement regions. During imaging, a selected pixel mirror reflects a selected-pixel beamlet into the capture angle of a projection lens, while the diffraction grating of the pixel surround redirects heat-producing unused radiation away from the projection lens. The resolution-enhancement regions of selected pixels provide phase shifts that increase effective modulation-transfer function in imaging. All of the non-selected pixel surrounds redirect all radiation energy away from the projection lens.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: September 2, 2008
    Assignee: Anvik Corporation
    Inventors: Kanti Jain, William C. Sweatt, Marc Zemel
  • Publication number: 20080176398
    Abstract: Methods of the present invention provide a high-throughput, low cost, patterning platform that is an alternative to conventional photolithography and direct laser ablation patterning techniques. The present processing methods are useful for making patterns of microsized and/or nanosized structures having accurately selected physical dimensions and spatial orientation that comprise active and passive components of a range of microelectronic devices. Processing provided by the present methods is compatible with large area substrates, such as device substrates for semiconductor integrated circuits, displays, and microelectronic device arrays and systems, and is useful for fabrication applications requiring patterning of layered materials, such as patterning thin film layers in thin film electronic devices.
    Type: Application
    Filed: January 18, 2007
    Publication date: July 24, 2008
    Inventors: Kanti Jain, Junghun Chae, Sreeram Appasamy
  • Patent number: 7390116
    Abstract: A compact, high-brightness, integrated illuminator in which collection of light from a point-arc source is maximized by a multi-curvature reflector section configuration of elliptical reflector and segmented spherical retroreflector directing all light rays into a well-defined numerical aperture. The invention also integrates a homogenizer and other optical elements with the multi-curvature reflector section, constructs any or all of these components in a single block of optical material, or, alternatively, constructs these components with molded hollow reflective cavities fabricated in metal or plastic blocks. Cooling is provided by internal fluid channels within the block.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: June 24, 2008
    Assignee: Anvik Corporation
    Inventor: Kanti Jain
  • Publication number: 20080018981
    Abstract: An enhanced spatial light modulator (ESLM) array, a microelectronics patterning system and a projection display system using such an ESLM for heat-minimization and resolution enhancement during imaging, and the method for fabricating such an ESLM array. The ESLM array includes, in each individual pixel element, a small pixel mirror (reflective region) and a much larger pixel surround. Each pixel surround includes diffraction-grating regions and resolution-enhancement regions. During imaging, a selected pixel mirror reflects a selected-pixel beamlet into the capture angle of a projection lens, while the diffraction grating of the pixel surround redirects heat-producing unused radiation away from the projection lens. The resolution-enhancement regions of selected pixels provide phase shifts that increase effective modulation-transfer function in imaging. All of the non-selected pixel surrounds redirect all radiation energy away from the projection lens.
    Type: Application
    Filed: December 28, 2006
    Publication date: January 24, 2008
    Inventors: Kanti Jain, William Sweatt, Marc Zemel
  • Patent number: 7297331
    Abstract: Compositions of matter are described which contain restricted cancer cells. When so restricted, the cells produce an unexpectedly high amount of material which suppresses cancer cell proliferation. The phenomenon crosses cancer type and species lines. Processes for making these compositions, and their use, are also described.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: November 20, 2007
    Assignee: The Rogosin Institute
    Inventors: Shirin Asina, Kanti Jain, Albert L. Rubin, Barry Smith, Kurt Stenzel
  • Publication number: 20070139791
    Abstract: An optimized illumination system that efficiently produces uniform illumination for exposure, photoablation, and laser crystallization systems. The illumination system includes a homogenizer that uniformizes and shapes a light beam, which is directed onto a mask by condenser optics. The illumination system recycles radiation by directing light reflected by the mask back into the illumination system, where an apertured mirror situated at the input end re-directs it back toward the mask. The relative mirror and aperture sizes affect recycling efficiency and system throughput, so the system features a wide recycling segment enabling greater mirror-to-aperture area ratios. An added segment at the output end of the homogenizer matches the homogenizer diameter to the projection imaging system object field size. This standardizes the homogenizer and condenser lens construction system, reducing the need for customized parts and thus reducing manufacturing time and expense.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 21, 2007
    Applicant: Anvik Corporation
    Inventors: Shyam Raghunandan, Kanti Jain, Marc Zemel, Marc Klosner, Sivarama Kuchibhotla
  • Publication number: 20070110774
    Abstract: Compositions of matter are described which contain restricted cancer cells. When so restricted, the cells produce an unexpectedly high amount of material which suppresses cancer cell proliferation. The phenomenon crosses cancer type and species lines. Processes for making these compositions, and their use, are also described.
    Type: Application
    Filed: January 8, 2007
    Publication date: May 17, 2007
    Inventors: Shirin Asina, Kanti Jain, Albert Rubin, Barry Smith, Kurt Stenzel
  • Publication number: 20070110773
    Abstract: Compositions of matter are described which contain restricted cancer cells. When so restricted, the cells produce an unexpectedly high amount of material which suppresses cancer cell proliferation. The phenomenon crosses cancer type and species lines. Processes for making these compositions, and their use, are also described.
    Type: Application
    Filed: January 8, 2007
    Publication date: May 17, 2007
    Inventors: Shirin Asina, Kanti Jain, Albert Rubin, Barry Smith, Kurt Stenzel
  • Patent number: 7195375
    Abstract: A compact light-beam homogenizer is realized by multiple reflections within internally-reflecting optical channels which are arranged in a folded configuration. The optical channels may be hollow with mirrored walls, or made of a solid transparent optical material. Light enters through an apertured mirror whose internally reflective surface sends back-reflected rays forward for recycling. Multiple entry ports may be provided for combining several beams or for reducing the intensity in the channels. The homogenizer may be used in reverse as a beam divider. Different shapes of the optical channels are provided for obtaining an effective emission surface of different shapes. Due to reflections from surfaces that are parallel to the optical axis, the numerical aperture of the input beams is preserved.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: March 27, 2007
    Assignee: Anvik Corporation
    Inventor: Kanti Jain
  • Publication number: 20070024830
    Abstract: A zero power identical pair of oppositely-oriented meniscus lens elements mounted in the projection light path, serves as curved mask support while compensating for optical anomalies such as beam shift and beam deviations produced by other transparent supports for the curved mask. The zero-power meniscus lens pair, without affecting the transmission beam characteristics, lets the beam diffract as efficiently as does a regular planar mask, thus preserving the partial coherence effects and resolution concepts of projection lithography. This simple but novel optics device is not only expected to clear several barriers for curved mask projection lithography but also find place in other applications where collimated or converging light beams have to travel extra paths without significant aberration.
    Type: Application
    Filed: August 30, 2006
    Publication date: February 1, 2007
    Inventors: Sivarama Kuchibhotla, Kanti Jain, Marc Klosner
  • Patent number: 7170669
    Abstract: An enhanced spatial light modulator (ESLM) array, a microelectronics patterning system and a projection display system using such an ESLM for heat-minimization and resolution enhancement during imaging, and the method for fabricating such an ESLM array. The ESLM array includes, in each individual pixel element, a small pixel mirror (reflective region) and a much larger pixel surround. Each pixel surround includes diffraction-grating regions and resolution-enhancement regions. During imaging, a selected pixel mirror reflects a selected-pixel beamlet into the capture angle of a projection lens, while the diffraction grating of the pixel surround redirects heat-producing unused radiation away from the projection lens. The resolution-enhancement regions of selected pixels provide phase shifts that increase effective modulation-transfer function in imaging. All of the non-selected pixel surrounds redirect all radiation energy away from the projection lens.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: January 30, 2007
    Assignees: Anvik Corporation, Sandia Corporation
    Inventors: Kanti Jain, William C. Sweatt, Marc Zemel
  • Patent number: 7164465
    Abstract: A versatile maskless patterning system with capability for selecting rapidly among a plurality of projection lenses mounted on a turret. This provides the ability to rapidly select multiple choices for resolution and enables optimization of the combination of the imaging resolution and exposure throughput, making possible cost-effective fabrication of microelectronics packaging products. A preferred embodiment uses a digital micromirror device array spatial light modulator as a virtual mask. Another preferred embodiment use multiple closely spaced digital micromirror device array spatial light modulators to enhance throughput.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: January 16, 2007
    Assignee: Anvik Corporation
    Inventors: Marc A. Klosner, Kanti Jain
  • Patent number: 7158305
    Abstract: An optimized illumination system that efficiently produces uniform illumination for exposure, photoablation, and laser crystallization systems. The illumination system includes a homogenizer that uniformizes and shapes a light beam, which is directed onto a mask by condenser optics. The illumination system recycles radiation by directing light reflected by the mask back into the illumination system, where an apertured mirror situated at the input end re-directs it back toward the mask. The relative areas of the mirror and aperture affect recycling efficiency and system throughput, so the system features a larger-diameter recycling segment enabling greater mirror-to-aperture area ratios. An added segment at the output end of the homogenizer matches the homogenizer diameter to the projection imaging system object field size. This standardizes the homogenizer and condenser lens integration, reducing the need for customized parts and thus reducing manufacturing time and expense.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: January 2, 2007
    Assignee: Anvik Corporation
    Inventors: Shyam Raghunandan, Kanti Jain, Marc I. Zemel, Marc A. Klosner, Sivarama K. Kuchibhotla
  • Patent number: 7139448
    Abstract: Significant advances in semiconductor microelectronics technologies have resulted in greatly enhanced chip performance. Systems studies have continuously shown that on-board interconnects between chips are the bottleneck in achieving board level performance that is comparable with this chip performance. This invention provides a multiple-layer photonic-electronic circuit board family that solves this interconnect performance problem. Multiple layers of patterned optical channel waveguides and patterned electrical conductors co-exist in a single circuit board structure, with optical vias to transport light between different photonics layers and electrical vias to transport electrical signals and power between different electronics layers. An all-lithographic fabrication technology is used to build the entire board structure with mutually compatible planar processing steps.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: November 21, 2006
    Assignee: Anvik Corporation
    Inventors: Kanti Jain, Carl C. Kling
  • Patent number: RE39542
    Abstract: Biological agents such as secretory cells are encapsulated in a hydrophilic gel made of agarose or collagen-agarose and gelatin sponge-agarose combinations. In a preferred embodiment, semi-solid beads are formed from a suspension containing collagen, agarose and secretory cells such as pancreatic islets, the collagen is polymerized to form solid, agarose-collagen beads and the solid beads are coated with agarose. Coating is preferably by rolling the solid beads in about 5-10% agarose, contacting the rolled beads with mineral oil and washing oil from the beads. Beads containing secretory cells can be transplanted into a mammal to treat a condition caused by impaired secretory cell function.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: April 3, 2007
    Assignee: The Rogosin Institute
    Inventors: Kanti Jain, Albert L. Rubin, Barry Smith
  • Patent number: RE40555
    Abstract: Biological agents such as secretory cells are encapsulated in a hydrophilic gel made of agarose or collagen-agarose and gelatin sponge-agarose combinations. In a preferred embodiment, semi-solid beads are formed from a suspension containing collagen, agarose and secretory cells such as pancreatic islets, the collagen is polymerized to form solid, agarose-collagen beads and the solid beads are coated with agarose. Coating is preferably by rolling the solid beads in about 5-10% agarose, contacting the rolled beads with mineral oil and washing oil from the beads. Beads containing secretory cells can be transplanted into a mammal to treat a condition caused by impaired secretory cell function.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: October 28, 2008
    Assignee: The Rogosin Institute
    Inventors: Kanti Jain, Albert L. Rubin, Barry Smith