Patents by Inventor Dongmin Chen

Dongmin Chen 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: 20080211043
    Abstract: A package for a micro-electromechanical device includes a substrate adapted to support the micro-electromechanical device. The micro-electromechanical device is electrically coupled to a plurality of electrodes. The package also includes a thermally conductive structure coupled to the substrate, an electrical contact layer having a plurality of traces in electrical communication with the plurality of electrodes, and an interposer structure coupled to the substrate. The interposer structure includes a continuous annular region defining a recessed region bounded by a bond surface. The package further includes a transparent cover coupled to the interposer structure and sealing the micro-electromechanical device in the recessed region to isolate the micro-electromechanical device in a controlled environment.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 4, 2008
    Applicant: Miradia Inc.
    Inventor: Dongmin Chen
  • Publication number: 20080191221
    Abstract: A multilayered integrated optical and circuit device. The device has a first substrate comprising at least one integrated circuit chip thereon, which has a cell region and a peripheral region. Preferably, the peripheral region has a bonding pad region, which has one or more bonding pads and an antistiction region surrounding each of the one or more bonding pads. The device has a second substrate with at least one or more deflection devices thereon coupled to the first substrate. At least one or more bonding pads are exposed on the first substrate. The device has a transparent member overlying the second substrate while forming a cavity region to allow the one or more deflection devices to move within a portion of the cavity region to form a sandwich structure including at least a portion of the first substrate, a portion of the second substrate, and a portion of the transparent member.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 14, 2008
    Applicant: Miradia Inc.
    Inventors: Xiao Charles Yang, Dongmin Chen, Philip Chen
  • Publication number: 20080192325
    Abstract: The contrast offered by a spatial light modulator device may be enhanced by positioning nonreflective elements such as supporting posts and moveable hinges, behind the reflecting surface of the pixel. In accordance with one embodiment, the reflecting surface is suspended over and underlying hinge-containing layer by integral ribs of the reflecting material defined by gaps in a sacrificial layer. In accordance with an alternative embodiment, the reflecting surface is separated from the underlying hinge by a gap formed in an intervening layer, such as oxide. In either embodiment, walls separating adjacent pixel regions may be recessed beneath the reflecting surface to further reduce unwanted scattering of incident light and thereby enhance contrast.
    Type: Application
    Filed: April 25, 2008
    Publication date: August 14, 2008
    Applicant: Miradia Inc.
    Inventors: Kegang Huang, Xiao Yang, Dongmin Chen
  • Publication number: 20080179696
    Abstract: A micromechanical device assembly includes a micromechanical device enclosed within a processing region and a lubricant channel formed through an interior wall of the processing region and in fluid communication with the processing region. Lubricant is injected into the lubricant channel via capillary forces and held therein via surface tension of the lubricant against the internal surfaces of the lubrication channel. The lubricant channel containing the lubricant provides a ready supply of fresh lubricant to prevent stiction from occurring between interacting components of the micromechanical device disposed within the processing region.
    Type: Application
    Filed: September 26, 2007
    Publication date: July 31, 2008
    Inventors: Dongmin Chen, William Spencer Worley, Hung-Nan Chen
  • Publication number: 20080180516
    Abstract: A MEMS mirror for a laser printing application includes providing a CMOS substrate including a pair of electrodes, and providing a reflecting mirror moveable over the substrate and the electrodes. Voltages applied to the electrodes create an electrostatic force causing an end of the mirror to be attracted to the substrate. A precise position of the mirror can be detected and controlled by sensing a change in capacitance between the mirror ends and the underlying electrodes.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 31, 2008
    Applicant: Miradia Inc.
    Inventors: Xiao Yang, William Spencer Worley, Dongmin Chen, Ye Wang
  • Publication number: 20080150647
    Abstract: A resonator includes a CMOS substrate having a first electrode and a second electrode. The CMOS substrate is configured to provide one or more control signals to the first electrode. The resonator also includes a resonator structure including a silicon material layer. The resonator structure is coupled to the CMOS substrate and configured to resonate in response to the one or more control signals.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 26, 2008
    Applicant: Miradia Inc.
    Inventors: Xiao Yang, Dongmin Chen, Ye Wang, Justin Payne, Yuxiang Wang, Wook Ji
  • Patent number: 7374962
    Abstract: The contrast offered by a spatial light modulator device may be enhanced by positioning nonreflective elements such as supporting posts and moveable hinges, behind the reflecting surface of the pixel. In accordance with one embodiment, the reflecting surface is suspended over and underlying hinge-containing layer by integral ribs of the reflecting material defined by gaps in a sacrificial layer. In accordance with an alternative embodiment, the reflecting surface is separated from the underlying hinge by a gap formed in an intervening layer, such as oxide. In either embodiment, walls separating adjacent pixel regions may be recessed beneath the reflecting surface to further reduce unwanted scattering of incident light and thereby enhance contrast.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: May 20, 2008
    Assignee: Miradia Inc.
    Inventors: Kegang Huang, Xiao Yang, Dongmin Chen
  • Patent number: 7372615
    Abstract: One embodiment of an micromechanical device includes a first contact surface, a moveable component having a second contact surface, where the second contact surface interacts with the first contact surface during device operation, and a gas-phase lubricant disposed between the first contact surface and the second contact surface, where the gas-phase lubricant is adapted to reduce stiction-related forces between the first contact surface and the second contact surface. One advantage of the disclosed device is that a gas-phase lubricant has a high diffusion rate and, therefore, is self-replenishing, meaning that it can quickly move back into a contact region after being physically displaced from the region by the contacting surfaces of the device during operation. Consequently, the gas-phase lubricant is more reliable than conventional solid or liquid lubricants in preventing stiction-related device failures.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: May 13, 2008
    Assignee: Miradia Inc.
    Inventors: Dongmin Chen, Fulin Xiong
  • Publication number: 20080088800
    Abstract: A high-resolution image is generated using multiple spatially offset lower-resolution digital micro-mirror device (DMD) panels. Multiple lower-resolution subframe signals for controlling the spatial light modulators are generated from a high-resolution image signal using a resolution reduction and interpolation algorithm. The spatial light modulators under control of the subframe signals are illuminated by a light source and light beams reflected from the spatial light modulators are combined and directed onto a screen for display.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 17, 2008
    Inventors: Matthew BELLIS, Dongmin Chen, Gregory Miller
  • Publication number: 20080081427
    Abstract: Embodiments of the present invention generally relate to a electromechanical device that has an improved usable lifetime due to the presence of one or more channels that contain and deliver a lubricant material that can reduce the likelihood of stiction occurring between the various moving parts of the device. Embodiments of the present invention also generally include an enclosed device package, and a method of forming the enclosed device package, that has one or more lubricant containing and/or transporting channels that that deliver lubricant material to a device disposed within the enclosed device package. Each lubricant containing channel acts as a ready supply of “fresh” lubricant to prevent stiction from occurring between interacting components of the device disposed within the enclosed region of the device package. The ready supply of “fresh” lubricants may also be used to replenish damaged lubricants (worn-off, broken down, etc) at the contacting surfaces where stiction generally occurs.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 3, 2008
    Inventors: Dongmin Chen, William Spencer Worley
  • Publication number: 20080080832
    Abstract: Embodiments of the present invention generally relate to a electromechanical device that has an improved usable lifetime due to the presence of one or more channels that contain and deliver a lubricant material that can reduce the likelihood of stiction occurring between the various moving parts of the device. Embodiments of the present invention also generally include an enclosed device package, and a method of forming the enclosed device package, that has one or more lubricant containing and/or transporting channels that that deliver lubricant material to a device disposed within the enclosed device package. Each lubricant containing channel acts as a ready supply of “fresh” lubricant to prevent stiction from occurring between interacting components of the device disposed within the enclosed region of the device package. The ready supply of “fresh” lubricants may also be used to replenish damaged lubricants (worn-off, broken down, etc) at the contacting surfaces where stiction generally occurs.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 3, 2008
    Inventors: Dongmin CHEN, William Spencer WORLEY
  • Patent number: 7344956
    Abstract: A multilayered integrated optical and circuit device. The device has a first substrate comprising at least one integrated circuit chip thereon, which has a cell region and a peripheral region. Preferably, the peripheral region has a bonding pad region, which has one or more bonding pads and an antistiction region surrounding each of the one or more bonding pads. The device has a second substrate with at least one or more deflection devices thereon coupled to the first substrate. At least one or more bonding pads are exposed on the first substrate. The device has a transparent member overlying the second substrate while forming a cavity region to allow the one or more deflection devices to move within a portion of the cavity region to form a sandwich structure including at least a portion of the first substrate, a portion of the second substrate, and a portion of the transparent member.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: March 18, 2008
    Assignee: Miradia Inc.
    Inventors: Xiao “Charles” Yang, Dongmin Chen, Philip Chen
  • Publication number: 20080014682
    Abstract: A system for wafer-level packaging of a plurality of MEMS devices includes a substrate having a plurality of individual chips. Each of the plurality of individual chips includes a plurality of MEMS devices and each of the plurality of individual chips is arranged in a spatial manner as a first array configuration. The system also includes a transparent member of a predetermined thickness. The transparent member includes a transparent substrate of a first thickness having a bonding surface joined to a bonding surface of a standoff substrate of a second thickness. The standoff substrate defines a plurality of recessed regions arranged in a spatial manner as a second array configuration. The system further includes a sealed interface between the standoff substrate and the substrate. The sealed interface is adapted to enclose each of the plurality of individual chips within one of the plurality of recessed regions.
    Type: Application
    Filed: September 12, 2007
    Publication date: January 17, 2008
    Applicant: Miradia Inc.
    Inventors: Xiao Yang, Dongmin Chen
  • Publication number: 20070287214
    Abstract: The contrast offered by a spatial light modulator device may be enhanced by positioning nonreflective elements such as supporting posts and moveable hinges, behind the reflecting surface of the pixel. In accordance with one embodiment, the reflecting surface is suspended over and underlying hinge-containing layer by integral ribs of the reflecting material defined by gaps in a sacrificial layer. In accordance with an alternative embodiment, the reflecting surface is separated from the underlying hinge by a gap formed in an intervening layer, such as oxide. In either embodiment, walls separating adjacent pixel regions may be recessed beneath the reflecting surface to further reduce unwanted scattering of incident light and thereby enhance contrast.
    Type: Application
    Filed: September 29, 2005
    Publication date: December 13, 2007
    Applicant: Miradia Inc.
    Inventors: Kegang Huang, Xiao Yang, Dongmin Chen
  • Patent number: 7303645
    Abstract: A method for hermetically sealing devices. The method includes providing a substrate which includes a plurality of individual chips. Each of the chips includes a plurality of devices and each of the chips are arranged in a spatial manner as a first array. The method also provides a transparent member of a predetermined thickness which includes a plurality of recessed regions arranged in a spatial manner as a second array and a standoff region. The method also includes aligning the transparent member in a manner to couple each of the plurality of recessed regions to a respective one of said plurality of chips. The method further includes hermetically sealing each of the chips within one of the respective recessed regions by using at least a bonding process to isolate each of the chips within one of the recessed regions.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: December 4, 2007
    Assignee: Miradia Inc.
    Inventors: Xiao Yang, Dongmin Chen
  • Publication number: 20070258130
    Abstract: A spatial light modulator for use in display applications. The spatial light modulator includes a support substrate and a flexible member coupled to the support substrate. The spatial light modulator also includes a mirror plate coupled to the flexible member and characterized by an activated position. The mirror plate is adapted to rotate in relation to the flexible member from the activated position to a second activated position in a time less than 6.0 ?s.
    Type: Application
    Filed: May 4, 2006
    Publication date: November 8, 2007
    Applicant: Miradia Inc.
    Inventors: Dongmin Chen, Tore Nauta
  • Publication number: 20070258124
    Abstract: A method of activating a micro-mirror includes applying a first electrode voltage to one or more electrodes associated with the micro-mirror. The micro-mirror is positioned at a first positive deflection angle during a portion of the application of the first electrode voltage. The method also includes maintaining the first electrode voltage for a first predetermined time and applying a second electrode voltage to the one or more electrodes. The micro-mirror rotates to a first negative deflection angle during a portion of the application of the second electrode voltage. The method further includes maintaining the second electrode voltage for a second predetermined time and applying a third electrode voltage to the one or more electrodes. The micro-mirror is positioned at a second positive deflection angle greater than the first positive deflection angle during a portion of the application of the third electrode voltage.
    Type: Application
    Filed: May 4, 2006
    Publication date: November 8, 2007
    Applicant: Miradia Inc.
    Inventors: Dongmin Chen, Tore Nauta
  • Publication number: 20070235852
    Abstract: A system for wafer-level packaging of a plurality of MEMS devices includes a substrate having a plurality of individual chips. Each of the plurality of individual chips includes a plurality of MEMS devices and each of the plurality of individual chips is arranged in a spatial manner as a first array configuration. The system also includes a transparent member of a predetermined thickness. The transparent member includes a transparent substrate of a first thickness having a bonding surface joined to a bonding surface of a standoff substrate of a second thickness. The standoff substrate defines a plurality of recessed regions arranged in a spatial manner as a second array configuration. The system further includes a sealed interface between the standoff substrate and the substrate. The sealed interface is adapted to enclose each of the plurality of individual chips within one of the plurality of recessed regions.
    Type: Application
    Filed: June 14, 2007
    Publication date: October 11, 2007
    Applicant: Miradia Inc.
    Inventors: Xiao Yang, Dongmin Chen
  • Patent number: 7280263
    Abstract: A micro-mirror array that is useful, for example, in a reflective spatial light modulator. In one embodiment, the micro mirror array includes spacer support walls, a vertical torsion hinge, and a mirror plate, all being fabricated from a single wafer. The micro-mirror array has a large fill ratio.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: October 9, 2007
    Assignee: Miradia Inc.
    Inventors: Shaoher X Pan, Xiao Yang, Dongmin Chen, Shoucheng Zhang
  • Publication number: 20070171509
    Abstract: A micro-mirror array that is useful, for example, in a reflective spatial light modulator. In one embodiment, the micro mirror array includes spacer support walls, a vertical torsion hinge, and a mirror plate, all being fabricated from a single wafer. The micro-mirror array has a large fill ratio.
    Type: Application
    Filed: March 23, 2007
    Publication date: July 26, 2007
    Applicant: Miradia, Inc.
    Inventors: Shaoher Pan, Xiao Yang, Dongmin Chen, Shoucheng Zhang