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).

  • Patent number: 7763489
    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: Grant
    Filed: October 2, 2006
    Date of Patent: July 27, 2010
    Assignee: Miradia, Inc.
    Inventors: Dongmin Chen, William Spencer Worley
  • Patent number: 7723812
    Abstract: Embodiments of the present invention generally relate to a device that has an improved usable lifetime due to the presence of a lubricant that reduces the likelihood of stiction occurring between the various moving parts in an electromechanical device. Embodiments of the present invention also generally include a device, and a method of forming a device, that has one or more surfaces or regions that have a volume of lubricant disposed thereon that acts as a ready supply of “fresh” lubricant to prevent stiction occurring between interacting components found within the device. In one aspect, components within the volume of lubricant form a gas or vapor phase that reduces the chances of stiction-related failure in the formed device. In one example, aspects of this invention may be especially useful for fabricating and using micromechanical devices, such as MEMS devices, NEMS devices, or other similar thermal or fluidic devices.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: May 25, 2010
    Assignee: Miradia, Inc.
    Inventors: Dongmin Chen, Fulin Xiong, Spencer Worley
  • Patent number: 7723144
    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: Grant
    Filed: February 28, 2008
    Date of Patent: May 25, 2010
    Assignee: Miradia Inc.
    Inventor: Dongmin Chen
  • Publication number: 20100109102
    Abstract: A method for fabricating a micro electromechanical device includes providing a first substrate including control circuitry. The first substrate has a top surface and a bottom surface. The method also includes forming an insulating layer on the top surface of the first substrate, removing a first portion of the insulating layer so as to form a plurality of standoff structures, and bonding a second substrate to the first substrate. The method further includes thinning the second substrate to a predetermined thickness and forming a plurality of trenches in the second substrate. Each of the plurality of trenches extends to the top surface of the first substrate. Moreover, the method includes filling at least a portion of each of the plurality of trenches with a conductive material, forming the micro electromechanical device in the second substrate, and bonding a third substrate to the second substrate.
    Type: Application
    Filed: November 18, 2009
    Publication date: May 6, 2010
    Applicant: Miradia Inc.
    Inventors: Dongmin Chen, Justin Payne, Li-Tien Tseng
  • Patent number: 7671461
    Abstract: A system for hermetically sealing devices. The system includes 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 system also includes a transparent member of a predetermined thickness, which includes a plurality of recessed regions arranged in a spatial manner as a second array and each of the recessed regions are bordered by a standoff region. The substrate and the transparent member are aligned in a manner to couple each of the plurality of recessed regions to a respective one of said plurality of chips. Each of the chips within one of the respective recessed regions is hermetically sealed by contacting the standoff region of the transparent member to the plurality of first street regions and second street regions using at least a bonding process to isolate each of the chips within one of the recessed regions.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: March 2, 2010
    Assignee: Miradia Inc.
    Inventors: Xiao Yang, Dongmin Chen
  • Patent number: 7670880
    Abstract: A method of fabricating an integrated spatial light modulator. The method includes providing a first substrate including a bonding surface and processing a device substrate to form at least an electrode layer. The method also includes depositing a first portion of a multi-layer standoff layer on the electrode layer, depositing a second portion of the multi-layer standoff layer on the first portion of the multi-layer standoff layer, and forming electrically insulating standoff structures from the multi-layer standoff layer. The method further includes joining the bonding surface of the first substrate to the standoff structures on the device substrate, thinning the first substrate, patterning the first substrate to form a mask, and forming a plurality of moveable structures from the first substrate. The moveable structures are aligned with at least one of the plurality of electrodes and adapted to rotate with respect to the standoff structures.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: March 2, 2010
    Assignee: Miradia Inc.
    Inventors: Xiao Yang, Dongmin Chen, Kegang Huang
  • Publication number: 20090284823
    Abstract: One embodiment of an micromechanical device includes a first contact surface, a moveable component having a second contact surface, and a coating of liquid or solid lubricant on at least one of the contact surfaces, where the second contact surface interacts with the first contact surface during device operation, and a gas-phase lubricant is disposed between the first contact surface and the second contact surface, where the gas-phase lubricant is adapted to increase the usable lifetime of the liquid or solid lubricant coating on the contact surfaces. 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.
    Type: Application
    Filed: April 23, 2008
    Publication date: November 19, 2009
    Inventors: Dongmin Chen, Fulin Xiong
  • Patent number: 7616370
    Abstract: Embodiments of the present invention generally relate to a device that has an improved usable lifetime due to the presence of a lubricant that reduces the likelihood of stiction occurring between the various moving parts in an electromechanical device. Embodiments of the present invention also generally include a device, and a method of forming a device, that has one or more surfaces or regions that have a volume of lubricant disposed thereon that acts as a ready supply of “fresh” lubricant to prevent stiction occurring between interacting components found within the device. In one aspect, components within the volume of lubricant form a gas or vapor phase that reduces the chances of stiction-related failure in the formed device. In one example, aspects of this invention may be especially useful for fabricating and using micromechanical devices, such as MEMS devices, NEMS devices, or other similar thermal or fluidic devices.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: November 10, 2009
    Assignee: Miradia, Inc.
    Inventors: Dongmin Chen, Fulin Xiong, Spencer Worley
  • Patent number: 7580174
    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: December 22, 2005
    Date of Patent: August 25, 2009
    Assignee: Miradia, Inc.
    Inventors: Dongmin Chen, Fulin Xiong
  • Publication number: 20090205371
    Abstract: Light-absorbing glass frit material is used to seal an opening in a device or a plurality of devices in a batch process. The glass frit material is applied and then irradiated with light having a wavelength absorbed by the glass frit material so that the glass frit ball undergoes a glassy transition and forms a seal. When sealing an opening in a device, the glass frit material may be applied as a spherical ball such that the spherical ball covers the opening. The volume of the spherical ball may be selected to determine the final shape of the seal.
    Type: Application
    Filed: February 20, 2009
    Publication date: August 20, 2009
    Inventors: Dongmin Chen, Matthew William Bellis
  • Patent number: 7522330
    Abstract: An optical deflection device for a display application. The optical deflection device includes a semiconductor substrate including an upper surface region and one or more electrode devices provided overlying the upper surface region. The optical deflection device also includes a hinge device including a silicon material and coupled to the upper surface region. The optical deflection device further includes a spacing defined between the upper surface region and the hinge device and a mirror structure including a post portion coupled to the hinge device and a mirror plate portion coupled to the post portion and overlying the hinge device.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: April 21, 2009
    Assignee: Miradia Inc.
    Inventors: Xiao Yang, Yuxiang Wang, Wook Ji, Justin Allen Payne, Ye Wang, William Spencer Worley, III, Dongmin Chen, Howard Woo
  • Patent number: 7505195
    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: Grant
    Filed: May 4, 2006
    Date of Patent: March 17, 2009
    Assignee: Miradia Inc.
    Inventors: Dongmin Chen, Tore Nauta
  • Publication number: 20090002805
    Abstract: A display system includes a light source and a first optical system coupled to the light source and adapted to provide an illumination beam along an illumination path. The display system also includes a spatial light modulator positioned in the illumination path. The spatial light modulator includes a semiconductor substrate including a plurality of electrode devices and a hinge structure coupled to the semiconductor substrate. The hinge structure includes silicon material. The spatial light modulator also includes a mirror post coupled to the hinge structure and extending to a predetermined distance from the semiconductor substrate and a mirror plate coupled to the mirror post and overlying the plurality of electrode devices. The display system further includes a second optical system coupled to the spatial light modulator and adapted to project an image onto a projection surface.
    Type: Application
    Filed: September 12, 2008
    Publication date: January 1, 2009
    Applicant: Miradia Inc.
    Inventors: Xiao Yang, Yuxiang Wang, Wook Ji, Justin Allen Payne, Ye Wang, William Spencer Worley, III, Dongmin Chen, Howard Woo
  • Patent number: 7471439
    Abstract: Embodiments of the present invention generally relate to a process of forming a device that has an improved usable lifetime due to the addition of a gas-phase lubricant that reduces the likelihood of stiction occurring between the various moving parts in an electromechanical device. 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: December 22, 2005
    Date of Patent: December 30, 2008
    Assignee: Miradia, Inc.
    Inventors: Dongmin Chen, Fulin Xiong
  • Patent number: 7463404
    Abstract: Embodiments of the present invention generally relate to a device that has an improved usable lifetime due to the presence of a lubricant that reduces the likelihood of stiction occurring between the various moving parts in an electromechanical device. Embodiments of the present invention also generally include a device, and a method of forming a device, that has one or more surfaces or regions that have a volume of lubricant disposed thereon that acts as a ready supply of “fresh” lubricant to prevent stiction occurring between interacting components found within the device. In one aspect, components within the volume of lubricant form a gas or vapor phase that reduces the chances of stiction-related failure in the formed device. In one example, aspects of this invention may be especially useful for fabricating and using micromechanical devices, such as MEMS devices, NEMS devices, or other similar thermal or fluidic devices.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: December 9, 2008
    Assignee: Miradia, Inc.
    Inventors: Dongmin Chen, Fulin Xiong
  • Patent number: 7453624
    Abstract: A display system includes a light source and a first optical system coupled to the light source and adapted to provide an illumination beam along an illumination path. The display system also includes a spatial light modulator positioned in the illumination path. The spatial light modulator includes a semiconductor substrate including a plurality of electrode devices and a hinge structure coupled to the semiconductor substrate. The hinge structure includes silicon material. The spatial light modulator also includes a mirror post coupled to the hinge structure and extending to a predetermined distance from the semiconductor substrate and a mirror plate coupled to the mirror post and overlying the plurality of electrode devices. The display system further includes a second optical system coupled to the spatial light modulator and adapted to project an image onto a projection surface.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: November 18, 2008
    Assignee: Miradia Inc.
    Inventors: Xiao Yang, Yuxiang Wang, Wook Ji, Justin Allen Payne, Ye Wang, William Spencer Worley, III, Dongmin Chen, Howard Woo
  • Publication number: 20080278894
    Abstract: A projection docking station includes a docking port configured to communicate with a portable device and a projection unit configured to perform a projection process for an image. The projection docking station also includes a communication interface configured to provide communications between the docking port and the projection unit and a control unit configured to communicate with the communication interface and the projection unit. The control unit is configured to control a communication flow between the communication interface and the docking port, a communication flow between the communication interface and the projection unit, and the projection process.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 13, 2008
    Applicant: Miradia Inc.
    Inventors: Dongmin Chen, Michael Aaron Thompson
  • Patent number: 7443568
    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: Grant
    Filed: May 4, 2006
    Date of Patent: October 28, 2008
    Assignee: Miradia Inc.
    Inventors: Dongmin Chen, Tore Nauta
  • Publication number: 20080248613
    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: October 9, 2008
    Inventors: Dongmin Chen, William Spencer Worley, Hung-Nan Chen
  • Patent number: 7430359
    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: Grant
    Filed: October 2, 2006
    Date of Patent: September 30, 2008
    Assignee: Miradia, Inc.
    Inventors: Dongmin Chen, Spencer Worley