Patents by Inventor Roger A. Robbins

Roger A. Robbins 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: 7264179
    Abstract: A nebulization system, which creates a uniform fog of tiny suspended liquid droplets, to lubricate the surfaces of MEMS devices. These droplets fall over the edge of a baffle and are then mixed with an umbrella-like sheet of N2 turbulation gas to generate a uniform cloud of droplets that fill a passivation chamber. The MEMS device is then positioned in this uniform cloud of lubricant droplets for a specified amount of time, thereby uniformly lubricating all the surfaces of the device. The system uses a laser monitoring approach to control the uniformity of the lubricant cloud by providing feedback to the system to control the flow of gases. The system also equalizes the pressure around the sample device seal to prevent gases from entering or exiting the chamber and thereby influencing the environment inside the chamber.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: September 4, 2007
    Assignee: Texas Instruments Incorporated
    Inventor: Roger A. Robbins
  • Publication number: 20070177246
    Abstract: One embodiment provides an anchor to hold getter materials in place within a micromechanical device package substrate, said anchor comprising: a first cavity face; and a second cavity face. The cavity faces define an anchor cavity and mechanically retain a getter away from a region holding the micromechanical device. Another embodiment provides an anchor to hold a getter in place within a micromechanical device package. The anchor comprises: a package substrate; and a member attached to the package substrate, the member shaped to provide mechanical retention of the getter material formed over said member. Another embodiment provides a micromechanical device package comprising: a package substrate; a package lid enclosing a package cavity; a micromechanical device in the package cavity; and a getter anchor in the package cavity. Other embodiments provide methods of packaging and forming packages having a getter anchor. One getter anchor is formed in a substrate 906 comprised of at least three layers.
    Type: Application
    Filed: April 7, 2007
    Publication date: August 2, 2007
    Applicant: Texas Instruments Incorporated
    Inventors: Roger Robbins, Jwei Liu, Jack Smith, Edward Fisher, Joyce Holton
  • Publication number: 20060138642
    Abstract: One embodiment provides an anchor to hold getter materials in place within a micromechanical device package substrate, said anchor comprising: a first cavity face; and a second cavity face. The cavity faces define an anchor cavity and mechanically retain a getter away from a region holding the micromechanical device. Another embodiment provides an anchor to hold a getter in place within a micromechanical device package. The anchor comprises: a package substrate; and a member attached to the package substrate, the member shaped to provide mechanical retention of the getter material formed over said member. Another embodiment provides a micromechanical device package comprising: a package substrate; a package lid enclosing a package cavity; a micromechanical device in the package cavity; and a getter anchor in the package cavity. Other embodiments provide methods of packaging and forming packages having a getter anchor. One getter anchor is formed in a substrate 906 comprised of at least three layers.
    Type: Application
    Filed: January 31, 2006
    Publication date: June 29, 2006
    Inventors: Roger Robbins, Jwei Liu, Jack Smith, Edward Fisher, Joyce Holton
  • Patent number: 6992375
    Abstract: An anchor to hold getter materials in place within a micromechanical device package substrate. First and second cavity faces define an anchor cavity and mechanically retain a getter away from a region holding the micromechanical device. The getter anchor may be formed in a substrate comprised of at least three layers. The layers form a cavity in the substrate with a wide bottom portion—formed in the middle layer and a relatively narrower top portion—formed by the top layer. The narrow portion helps to retain the getter in the cavity by creating a mechanical lock on the wide portion of getter in the bottom of the cavity.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: January 31, 2006
    Assignee: Texas Instruments Incorporated
    Inventors: Roger A. Robbins, Jwei Wien Liu, Jack C. Smith, Edward Carl Fisher, Joyce Wong Holton
  • Publication number: 20050178848
    Abstract: A nebulization system, which creates a uniform fog of tiny suspended liquid droplets, to lubricate the surfaces of MEMS devices. These droplets fall over the edge of a baffle and are then mixed with an umbrella-like sheet of N2 turbulation gas to generate a uniform cloud of droplets that fill a passivation chamber. The MEMS device is then positioned in this uniform cloud of lubricant droplets for a specified amount of time, thereby uniformly lubricating all the surfaces of the device. The system uses a laser monitoring approach to control the uniformity of the lubricant cloud by providing feedback to the system to control the flow of gases. The system also equalizes the pressure around the sample device seal to prevent gases from entering or exiting the chamber and thereby influencing the environment inside the chamber.
    Type: Application
    Filed: April 1, 2005
    Publication date: August 18, 2005
    Inventor: Roger Robbins
  • Patent number: 6921680
    Abstract: A nebulization system, which creates a uniform fog of tiny suspended liquid droplets, to lubricate the surfaces of MEMS devices. These droplets fall over the edge of a baffle and are then mixed with an umbrella-like sheet of N2 turbulation gas to generate a uniform cloud of droplets that fill a passivation chamber. The MEMS device is then positioned in this uniform cloud of lubricant droplets for a specified amount of time, thereby uniformly lubricating all the surfaces of the device. The system uses a laser monitoring approach to control the uniformity of the lubricant cloud by providing feedback to the system to control the flow of gases. The system also equalizes the pressure around the sample device seal to prevent gases from entering or exiting the chamber and thereby influencing the environment inside the chamber.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: July 26, 2005
    Assignee: Texas Instruments Incorporated
    Inventor: Roger A. Robbins
  • Publication number: 20030129782
    Abstract: A nebulization system, which creates a uniform fog of tiny suspended liquid droplets, to lubricate the surfaces of MEMS devices. These droplets fall over the edge of a baffle and are then mixed with an umbrella-like sheet of N2 turbulation gas to generate a uniform cloud of droplets that fill a passivation chamber. The MEMS device is then positioned in this uniform cloud of lubricant droplets for a specified amount of time, thereby uniformly lubricating all the surfaces of the device. The system uses a laser monitoring approach to control the uniformity of the lubricant cloud by providing feedback to the system to control the flow of gases. The system also equalizes the pressure around the sample device seal to prevent gases from entering or exiting the chamber and thereby influencing the environment inside the chamber.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 10, 2003
    Inventor: Roger A. Robbins
  • Publication number: 20020063322
    Abstract: One embodiment provides an anchor to hold getter materials in place within a micromechanical device package substrate, said anchor comprising: a first cavity face; and a second cavity face. The cavity faces define an anchor cavity and mechanically retain a getter away from a region holding the micromechanical device. Another embodiment provides an anchor to hold a getter in place within a micromechanical device package. The anchor comprises: a package substrate; and a member attached to the package substrate, the member shaped to provide mechanical retention of the getter material formed over said member. Another embodiment provides a micromechanical device package comprising: a package substrate; a package lid enclosing a package cavity; a micromechanical device in the package cavity; and a getter anchor in the package cavity. Other embodiments provide methods of packaging and forming packages having a getter anchor. One getter anchor is formed in a substrate 906 comprised of at least three layers.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 30, 2002
    Inventors: Roger A. Robbins, Jwei Wien Liu, Jack C. Smith, Edward Carl Fisher, Joyce Wong Holton
  • Patent number: 6365229
    Abstract: A method and system for applying a surface treatment to an object. The system comprises: a source chamber (106) for holding a source of surface treatment material (102); a deposition chamber (112) enclosing the object to be treated (104); a recovery chamber (108); a supply of carrier gas (110); conduit (116) connecting the source chamber (106) to the deposition chamber (112) and the deposition chamber (112) to the recovery chamber (108) and for controlling the flow of the carrier gas between the source chamber (106), the deposition chamber (112) and the recovery chamber; and a heater (124) for heating the source chamber (106), the source of surface treatment material (102), the deposition chamber (112), an upper portion (120) of the recovery chamber (108), the carrier gas, and the conduit (116). When heated, the source material (102) evaporates into the carrier gas and is carried to the deposition chamber (112) where is attaches to the surface of the object being treated (104).
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: April 2, 2002
    Assignee: Texas Instruments Incorporated
    Inventor: Roger A. Robbins
  • Patent number: 6300294
    Abstract: A method of dispensing a lubricant into a micromechanical device package and a micromechanical device package containing the lubricant. The method comprises the steps of mixing (102) the lubricant, typically a perfluoroalkanoic acid such as perfluorodecanoic acid with a suitable solvent, typically an ether solvent such as tetrahydrofuran or tert-butyl methyl ether. The mixture is allowed to equilibriate (104) before being filtered (106) to remove solid particles. The filtered solution is applied (108) to a surface that will be on the interior of the package, typically the ceramic substrate. The deposited mixture is then cured (110) to remove most, if not all, of the solvent, and the package is sealed (112).
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: October 9, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Roger A. Robbins, Simon Joshua Jacobs
  • Patent number: 5474614
    Abstract: A method and apparatus is provided for effectively releasing a semiconductor wafer (36) from a deactivated electrostatic clamp (20) by diffusing a neutralizing gas into the space between the clamping surface of the electrostatic clamp and the surface of the wafer, generating an ionizing voltage with an alternating polarity, and applying the alternating polarity ionizing voltage to the diffusing gas to neutralize the residual electrostatic charges remaining on the surfaces of the clamp (20) and the wafer (36).
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: December 12, 1995
    Assignee: Texas Instruments Incorporated
    Inventor: Roger A. Robbins
  • Patent number: 5423942
    Abstract: A method and apparatus is provided for reducing wall erosion in a plasma containment tube (20), such as, for example, a quartz plasma tube (20) used in a microwave-induced plasma reaction process for etching semiconductor wafers. A pure benign or non-corrosive gas (Ar) is introduced into the "upstream" section (22a) of the tube (22), where the microwave energy is imparted to create a plasma. The activated benign gas flows "downstream" through a flange (28), preferably made of quartz, which is seated on o-rings (50) inside a water-cooled metal flange (48). These sealing o-rings (50) are thus cooled and removed from the ultraviolet light created by the plasma. The corrosive etchant gas (SF.sub.6) is introduced into the "downstream" section (22b) of the tube (22) beyond the flange (28), where it is activated by the benign gas (Ar). The benign gas (Ar) flows principally along the inner sidewalls of the tube (22), and the etchant gas (SF.sub.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: June 13, 1995
    Assignee: Texas Instruments Incorporated
    Inventors: Roger A. Robbins, Donald E. Brown, David W. Buck, Alan D. Rose
  • Patent number: 5266527
    Abstract: A method of processing a semiconductor wafer using a wafer chuck having a first end with a non-planar surface, the non-planar surface shaped such that a wafer supported at a plurality of points about its periphery will have a uniform pressure between its surface and the non-planar surface, and pressing a surface of the wafer against the non-planar surface of the wafer chuck.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: November 30, 1993
    Assignee: Texas Instruments Incorporated
    Inventor: Roger A. Robbins