With Means For Measuring, Testing, Or Sensing Patents (Class 117/201)
  • Patent number: 8435346
    Abstract: A phase modulation element according to the present invention has a first area having a first phase value based on a phase modulation unit having a predetermined size and a second area having a second phase value based on the phase modulation unit having the predetermined size, and each phase distribution is defined by a change in area shares of the first area and the second area depending on each position.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: May 7, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masakiyo Matsumura, Yukio Taniguchi
  • Patent number: 8430959
    Abstract: Disclosed are a method and an apparatus for preparing a polycrystalline silicon rod using a mixed core means, comprising: installing a first core means made of a resistive material together with a second core means made of silicon material in an inner space of a deposition reactor; electrically heating the first core means and pre-heating the second core by the first core means which is electrically heated; electrically heating the preheated second core means; and supplying a reaction gas into the inner space in a state where the first core means and the second core means are electrically heated for silicon deposition.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: April 30, 2013
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Hee Young Kim, Kyung Koo Yoon, Yong Ki Park, Won Choon Choi, Won Wook So
  • Patent number: 8394197
    Abstract: Enhanced corrosion resistance is achieved in a coating by using a germanium-containing precursor and hollow cathode techniques to form a first layer directly on the surface of a workpiece, prior to forming an outer layer, such as a layer of diamond-like carbon (DLC). The use of a germanium or germanium-carbide precursor reduces film stress and enables an increase in the thickness of the subsequently formed DLC. Germanium incorporation also reduces the porosity of the layer. In one embodiment, a cap layer containing germanium is added after the DLC in order to further reduce the susceptibility of the coating to chemical penetration from the top.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: March 12, 2013
    Assignee: Sub-One Technology, Inc.
    Inventors: Andrew W. Tudhope, Thomas B. Casserly, Karthik Boinapally, Deepak Upadhyaya, William J. Boardman
  • Publication number: 20130032083
    Abstract: The present invention provides a single-crystal manufacturing apparatus comprising a chamber that accommodates a crucible containing a raw material melt; a pulling mechanism for pulling a single crystal; a heater for heating the raw material melt, the heater being movable upwardly and downwardly; and a temperature measurement means for measuring temperature of the heater, wherein the temperature measurement means is movable upwardly and downwardly in response to the upward and downward movement of the heater. The present invention provides a single-crystal manufacturing apparatus and a method for manufacturing a single crystal that can stably measure the heater temperature regardless of a change in operation conditions and hence stably control the heater temperature and the heater output, resulting in a stable operation.
    Type: Application
    Filed: April 6, 2011
    Publication date: February 7, 2013
    Applicant: SHIN-ETSU HANDOTAI CO., LTD.
    Inventors: Katsuyuki Kitagawa, Atsushi Iwasaki, Hiroshi Ohtsuna
  • Patent number: 8361223
    Abstract: Provided is a method for reliably and easily measuring a liquid level by selecting an optimal reflection method from among a plurality of reflection methods, depending on growing conditions of a pulled single crystal. The method comprises: setting a plurality of measuring methods having different ways of determining the liquid level; creating, in advance, information that associates with a gap between the outer peripheral face of the single crystal and a predetermined position located between a heat shield and the outer peripheral face of the single crystal; determining the gap in accordance with manufacturing conditions; selecting a measuring method associated to the determined gap, on the basis of the information; and measuring the liquid level of a melt surface in use of the selected measuring method.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: January 29, 2013
    Assignee: Sumco Techxiv Corporation
    Inventors: Toshio Hayashida, Ayumi Kihara, Takuaki Takami
  • Patent number: 8349074
    Abstract: A method for detecting a diameter of a single crystal at the time of pulling the single crystal from a silicon melt contained in a crucible according to the Czochralski method, the method including at least: using two cameras placed equidistant from each other as a target diameter upon forming a straight-body portion of the single crystal and face both ends of the diameter of the single crystal in a growth point of the single crystal respectively, to separately capture both of the ends of the growth point of the single crystal from an outside of a furnace, the growth point being a contact point between the single crystal and a melt surface; and detecting the diameter of the single crystal on the basis of the captured images. As a result, diameter detection precision is improved.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: January 8, 2013
    Assignee: Shin-Etsu Handotai Co., Ltd.
    Inventors: Hiroshi Ohtsuna, Atsushi Iwasaki
  • Patent number: 8317919
    Abstract: An improved system based on the Czochralski process for continuous growth of a single crystal ingot comprises a low aspect ratio, large diameter, and substantially flat crucible, including an optional weir surrounding the crystal. The low aspect ratio crucible substantially eliminates convection currents and reduces oxygen content in a finished single crystal silicon ingot. A separate level controlled silicon pre-melting chamber provides a continuous source of molten silicon to the growth crucible advantageously eliminating the need for vertical travel and a crucible raising system during the crystal pulling process. A plurality of heaters beneath the crucible establish corresponding thermal zones across the melt. Thermal output of the heaters is individually controlled for providing an optimal thermal distribution across the melt and at the crystal/melt interface for improved crystal growth. Multiple crystal pulling chambers are provided for continuous processing and high throughput.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: November 27, 2012
    Assignee: Solaicx, Inc.
    Inventor: David L Bender
  • Patent number: 8282896
    Abstract: Carriers or holders for holding microfluidic devices are provided. Some of the carriers that are provided include a hydration control device and/or a source of controlled fluid pressure to facilitate use of the carrier in conducting various types of analyses.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: October 9, 2012
    Assignee: Fluidigm Corporation
    Inventors: Geoffrey Richard Facer, Hany Ramaz Nassef
  • Publication number: 20120240844
    Abstract: A high temperature furnace comprising hot zone insulation having at least one shaped thermocouple assembly port to reduce temperature measurement variability is disclosed. The shaped thermocouple assembly port has an opening in the insulation facing the hot zone that is larger than the opening on the furnace shell side of the insulation. A method for producing a crystalline ingot in a high temperature furnace utilizing insulation having a shaped thermocouple assembly port is also disclosed.
    Type: Application
    Filed: March 22, 2011
    Publication date: September 27, 2012
    Applicant: GT SOLAR, INCORPORATED
    Inventors: Ning Duanmu, Dean C. Skelton, Menahem Lowy, Dzung Duc Nguyen
  • Patent number: 8268074
    Abstract: A method and a device for producing oriented solidified blocks made of semi-conductor material are provided. The device includes a crucible, in which melt is received, and has an insulation which surrounds the crucible at least from the top and from the side and which is arranged at a distance therefrom at least above the crucible, and at least one heating device which is arranged above the crucible. The region inside the insulation above the crucible is divided by an intermediate cover in a process chamber and a heating chamber is arranged thereabove, where at least one heating element is arranged.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: September 18, 2012
    Assignee: Rec Scan Wafer AS
    Inventor: Franz Hugo
  • Patent number: 8257496
    Abstract: A weighing system is provided for a continuous Czochralski process that accurately measures the weight of the crucible and melt during crystal growth to control the introduction of feedstock in order to keep the weight approximately constant. The system can measure the weight of the crucible while the crucible is rotating, and is insensitive to vibrations of the melt surface as well as variable torques on the crucible shaft induced by the rotation. The system also measures the weight of the crucible and its contents in order to control the amount of feedstock recharged after an ingot is withdrawn.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: September 4, 2012
    Assignee: Solaicx, Inc.
    Inventors: David L. Bender, Gary Janik, Roy P. Crawford, David E. A. Smith
  • Patent number: 8216370
    Abstract: A method for removing defects at high pressure and high temperature (HP/HT) or for relieving strain in a non-diamond crystal commences by providing a crystal, which contains defects, and a pressure medium. The crystal and the pressure medium are disposed in a high pressure cell and placed in a high pressure apparatus, for processing under reaction conditions of sufficiently high pressure and high temperature for a time adequate for one or more of removing defects or relieving strain in the single crystal.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: July 10, 2012
    Assignee: Momentive Performance Materials Inc.
    Inventors: Mark Philip D'Evelyn, Thomas Richard Anthony, Stephen Daley Arthur, Lionel Monty Levinson, John William Lucek, Larry Burton Rowland, Suresh Shankarappa Vagarali
  • Patent number: 8216371
    Abstract: A Czochralski single crystal manufacturing apparatus uses multiple heaters to improve the controllability of crystal diameter. The power supplied to the multiple heaters is controlled so as to bring the pulling up speed close to a predetermined speed set value, and so as to bring the heater temperatures close to predetermined target temperature values. The ratio of electrical power between the heaters is controlled to agree with a predetermined power ratio set value which varies according to the crystal pulling up length, and the heater temperatures change along with this change, which causes disturbance to the diameter control. To compensate for this, heater temperature changes along with the power ratio set value change are taken into account in advance in the temperature set values. Accordingly, along with change of the power ratio set value, the temperature set values change to values appropriate for the current power ratio set value.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: July 10, 2012
    Assignee: Sumco Techxiv Corporation
    Inventors: Tetsuhiro Iida, Shin Matsukuma
  • Patent number: 8210906
    Abstract: A wafer slicing method includes winding a wire around rollers and pressing the wire against an ingot while supplying slurry to the rollers. A previously conducted experiment provides a supply temperature profile of the slurry during the slicing process and the relationship to the axial displacement of the rollers. This relationship is used to implement slurry delivery during the slicing process. The resultant wafers are bowed in a uniform direction. This slicing method provides excellent reproducibility in addition to producing wafers that are bowed in a uniform direction.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: July 3, 2012
    Assignee: Shin-Etsu Handotai Co., Ltd.
    Inventors: Hiroshi Oishi, Daisuke Nakamata
  • Patent number: 8197595
    Abstract: A method for producing thin silicon rods using a floating zone crystallization process includes supplying high frequency (HF) current to a flat induction coil having a central opening, a plurality of draw openings and a plate with a slot as a current supply of the HF current so as to provide a circumfluent current to the central opening. An upper end of a raw silicon rod is heated by induction using the flat induction coil so as to form a melt pool. A thin silicon rod is drawn upwards through each of the plurality of draw openings in the flat induction coil from the melt pool without drawing a thin silicon rod through the central opening having the circumfluent current.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: June 12, 2012
    Assignee: PV Silicon Forschungs und Produktions GmbH
    Inventors: Helge Riemann, Friedrich-Wilhelm Schulze, Joerg Fischer, Matthias Renner
  • Patent number: 8182607
    Abstract: There is provided a method and apparatus for assessing in-situ crystal formation in a test sample. Both optical imaging and X-ray diffraction techniques are utilized, with the results of these processes being combined in such a way as to produce an overall score relating to the aptness of crystalline material for harvesting and subsequent X-ray crystallography.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: May 22, 2012
    Assignee: Agilent Technologies, Inc.
    Inventors: Damian Kucharczyk, Richard Cooper, Paul William Loeffen
  • Patent number: 8118932
    Abstract: By locally heating specific scan positions within a region of interest and automatically obtaining respective measurement data in a time-resolved and spatially-resolved fashion, dynamic processes within a metallization layer of semiconductor devices may be efficiently monitored and/or modified. For instance, OBIRCH and SEI techniques may be used in combination with the automated data recording and manipulation, thereby providing an efficient means for in situ failure analysis, defect identification, for any dynamic degradation processes in interconnects and interlayer dielectrics.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: February 21, 2012
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Joerg Buschbeck, Eckhard Langer, Marco Grafe
  • Patent number: 8114217
    Abstract: There are provided a crystallization method which can design laser beam having a light intensity and a distribution optimized on an incident surface of a substrate, form a desired crystallized structure while suppressing generation of any other undesirable structure area and satisfy a demand for low-temperature processing, a crystallization apparatus, a thin film transistor and a display apparatus. When crystallizing a non-single-crystal semiconductor thin film by irradiating laser beam thereto, irradiation light beam to the non-single-crystal semiconductor thin film have a light intensity with a light intensity distribution which cyclically repeats a monotonous increase and a monotonous decrease and a light intensity which melts the non-single-crystal semiconductor. Further, at least a silicon oxide film is provided on a laser beam incident surface of the non-single-crystal semiconductor film.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: February 14, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masayuki Jyumonji, Hiroyuki Ogawa, Masakiyo Matsumura, Masato Hiramatsu, Yoshinobu Kimura, Yukio Taniguchi, Tomoya Kato
  • Patent number: 8066814
    Abstract: A crystal-growing furnace having a slurry drainage duct structure includes a furnace body, a supporting table, a loading frame, a plurality of eaves elements, and a set of eaves gutters. The supporting table includes a table plate and a plurality of supporting posts. The loading frame includes a lower plate and four side plates, where four elongated eaves boards descend from sides of the lower plate. Four eaves gutters, having V-shaped grooves, are connected with one another and disposed beneath the four eaves elements correspondingly. Any high-temperature silicon slurry leaks from a furnace crucible will be guided by the elongated eaves boards into the V-shaped grooves of the eaves gutters to prevent the silicon slurry from flowing along the periphery of the table plate and down to the supporting posts.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: November 29, 2011
    Assignee: Green Energy Technology Inc.
    Inventors: Shiow-Jeng Lew, Hur-Lon Lin
  • Patent number: 8062423
    Abstract: A crystal-growing furnace with a convectional cooling structure includes a furnace body, a heating room, and at least one heater. The heating room is accommodated in the furnace body, and includes an upper partition, a plurality of side partitions, and a lower partition. The upper partition is provided with an upper opening, and the lower partition with a central opening. Further, the heating room is provided with an upper door, a lower door, an upper driver, and a lower driver. When silicon slurry is to be cooled and solidified, cooling gaseous stream flows into a lower portion of the heating room through the central opening. Then the upper opening is opened by the upper door which is driven by the upper driver, so that heated gaseous stream is discharged from the upper opening and flows downward along furnace inside wall, and flows back to the heating room from the central opening.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: November 22, 2011
    Assignee: Green Energy Technology Inc.
    Inventor: Shiow-Jeng Lew
  • Patent number: 8062422
    Abstract: Embodiments described herein are directed to an apparatus for generating a precursor for a semiconductor processing system. In one embodiment, an apparatus for generating a precursor gas during a vapor deposition process is described. The apparatus includes a canister containing an interior volume between a lid and a bottom, a gaseous inlet and a gaseous outlet disposed on the lid, a plurality of silos coupled to the bottom and extending from a lower region to an upper region of the interior volume, and a tantalum precursor having a chlorine concentration of about 5 ppm or less contained within the lower region of the canister.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: November 22, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Ling Chen, Vincent W. Ku, Hua Chung, Christophe Marcadal, Seshadri Ganguli, Jenny Lin, Dien-Yeh Wu, Alan Ouye, Mei Chang
  • Patent number: 8048224
    Abstract: Embodiments of the invention relate to a process for producing a III-N bulk crystal, wherein III denotes at least one element selected from group III of the periodic system, selected from Al, Ga and In, wherein the III-N bulk crystal is grown by vapor phase epitaxy on a substrate, and wherein the growth rate is measured in real-time. By actively measuring and controlling the growth rate in situ, i.e. during the epitaxial growth, the actual growth rate can be maintained essentially constant. In this manner, III-N bulk crystals and individualized III-N single crystal substrates separated therefrom, which respectively have excellent crystal quality both in the growth direction and in the growth plane perpendicular thereto, can be obtained.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: November 1, 2011
    Assignee: Freiberger Compound Materials GmbH
    Inventors: Gunnar Leibiger, Frank Habel, Stefan Eichler
  • Publication number: 20110259262
    Abstract: Systems and methods are provided for producing monocrystalline materials such as silicon, the monocrystalline materials being usable in semiconductor and photovoltaic applications. A crucible (50) is received in a furnace (10) for growing a monocrystalline ingot, the crucible (50) initially containing a single seed crystal (20) and feedstock material (90), where the seed crystal (20) is at least partially melted, and the feedstock material (90) is completely melted in the crucible (50), which is followed by a growth and solidification process. Growth of monocrystalline materials such as silicon ingots is achieved by directional solidification, in which heat extraction during growth phases is achieved using insulation (14) that is movable relative to a crucible (50) containing feedstock (90). A heat exchanger (200) also is provided to control heat extraction from the crucible (50) during the growth and solidification process to achieve monocrystalline growth.
    Type: Application
    Filed: June 15, 2009
    Publication date: October 27, 2011
    Applicant: GT SOLAR, INC.
    Inventors: Chandra P. Khattak, Santhana Raghavan Parthasarathy, Bhuvaragasamy G. Ravi
  • Patent number: 8012258
    Abstract: The liquid surface position of the melt in the crucible in the silicon single crystal growth process utilizing the Czochralski method is monitored using the melt surface position on the occasion of seeding as a reference position and an estimated melt surface position can be calculated according to every situation, so that the distance between the melt and the thermal shield or water-cooling structure can be controlled with high precision. When the estimated melt surface position passes a preset upper limit and approaches the thermal shield, an alarm goes off and, further, when the melt comes into contact with the thermal shield or approaches the water-cooling structure, an alarm goes off if desired and, at the same time, the crucible is forcedly stopped from moving, so that a serious accident such as steam-incurred explosion resulting from the melt coming into contact with the water-cooling structure can be prevented.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: September 6, 2011
    Assignee: Sumco Corporation
    Inventors: Hiroshi Hayakawa, Tokuji Maeda
  • Patent number: 7993455
    Abstract: A polycrystalline silicon production apparatus is provided whereby when deposited silicon is caused to drip down into an underlying collection part by heating the reaction tube inner surface at a temperature equal to or above the melting point of silicon, the silicon melt can be prevented from solidifying at a lower end portion of the reaction tube due to temperature lowering at the lower end portion. When a reaction tube is heated with a high frequency heating coil, the temperature lowering at a lower end portion of the reaction tube is prevented through temperature lowering prevention means which may be an infrared device capable of heating the outer periphery of the lower end portion by means of infrared rays, or which may be a lower end coil that is constituted by a coil near the lower end of the high frequency heating coil and has an increased heating intensity relative to an upper coil.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: August 9, 2011
    Assignee: Tokuyama Corporation
    Inventors: Junichirou Nakashima, Hiroyuki Oda
  • Publication number: 20110183498
    Abstract: An improved high pressure apparatus and methods for processing supercritical fluids is described. The apparatus includes a capsule, a heater, and at least one ceramic ring contained by a metal sleeve. The apparatus is capable of accessing pressures and temperatures of 0.2-2 GPa and 400-1200° C.
    Type: Application
    Filed: January 25, 2011
    Publication date: July 28, 2011
    Applicant: Soraa, Inc.
    Inventor: Mark P. D'Evelyn
  • Patent number: 7981212
    Abstract: A flash lamp annealing device comprises a heater plate, a loader, a lamp set and a control circuit. The heater plate heats a wafer to a predetermined temperature. The wafer is loaded on the loader disposed on the heater plate. The lamp set has one or a plurality of lamps to provide the wafer with a power. The control circuit is coupled to the lamp set to control the flash time of the lamp set.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: July 19, 2011
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Fu-Kang Tien, Jui-Pin Hung
  • Patent number: 7972440
    Abstract: A system (10) for monitoring and controlling a fabrication process includes at least a first subsystem (12), a crystallographic analysis subsystem (14), and a second subsystem (16), wherein the first subsystem and second subsystem perform respective fabrication steps on a workpiece. The crystallographic analysis subsystem may be coupled to both the first subsystem and second subsystem. The analysis subsystem acquires crystallographic information from the workpiece after the workpiece undergoes a fabrication step by the first subsystem and then provides information, based on the crystallographic information acquired, for modifying parameters associated with the respective fabrication steps. The system may also include neural networks (24, 28) to adaptively modify, based on historical process data (32), parameters provided to the respective fabrication steps. The analysis subsystem may include a electromagnetic source (61), a detector (66), a processor (67), a controller (68) and a scanning actuator (65).
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: July 5, 2011
    Assignee: Agere Systems Inc.
    Inventors: Erik C. Houge, John M. McIntosh, Robert Francis Jones
  • Patent number: 7964035
    Abstract: A crystallization apparatus is provided. The crystallization apparatus includes a visible light source capable of obtaining high energy density output therein. A visible light irradiation system is formed by a plurality of visible laser beam sources arranged in a two-dimensional array. The visible light irradiation system includes a light intensity distribution forming apparatus for patterning light intensity distribution of a plurality of visible laser beams emitted by each visible laser beam source, and an imaging optical system for imaging the light having the light intensity distribution patterned by the light intensity distribution forming apparatus onto an irradiated region on the processed substrate. The visible laser beams emitted by a plurality of solid lasers or semiconductor lasers are overlapped in the light intensity distribution forming apparatus that satisfies an imaging position relationship in an optical axis with respect to the processed substrate.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: June 21, 2011
    Assignee: Shimadzu Corporation
    Inventors: Noritaka Akita, Yoshio Takami
  • Patent number: 7964036
    Abstract: A crystallization apparatus is provided. In the crystallization apparatus, a light intensity distribution formed by a light modulation device or a metal aperture and transferred to a processed substrate can be visualized. The crystallization apparatus has an ultraviolet (UV) irradiation system and a visible light irradiation system. The UV irradiation system irradiates pulses of laser beam in the UV range to the processed substrate. The visible light irradiation system continuously irradiates a visible light laser beam on the same irradiated region on the processed substrate. In a melted region resulted from the uniform irradiation of the laser beam in the UV range, the light intensity distribution of the visible laser beam is used to form crystal growth. The crystallization apparatus irradiates pulses of the laser beam in the UV range to melt the processed substrate, and continuously irradiates the visible light laser beam to crystallize the processed substrate.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: June 21, 2011
    Assignee: Shimadzu Corporation
    Inventors: Noritaka Akita, Yoshio Takami
  • Publication number: 20110126759
    Abstract: An apparatus for growing a synthetic diamond comprises a growth chamber, at least one manifold allowing access to the growth chamber, and a plurality of safety clamps positioned on opposite sides of the growth chamber; wherein the growth chamber and the plurality of safety clamps are comprised of a material having a tensile strength of about 120,000-200,000 psi, a yield strength of about 100,000-160,000 psi, an elongation of about 10-20%, an area reduction of about 40-50%, an impact strength of about 30-40 ft-lbs, and a hardness greater than 320 BHN.
    Type: Application
    Filed: January 28, 2011
    Publication date: June 2, 2011
    Applicant: THE GEMESIS CORPORATION
    Inventors: Robert CHODELKA, Hexiang ZHU, Alexander NOVIKOV
  • Publication number: 20110120367
    Abstract: A silicon single crystal pull-up apparatus includes a pull-up furnace, a sample chamber in which a sublimable dopant is housed, a sample tube which can be raised and lowered between the interior of the sample chamber and the interior of the pull-up furnace, a raising and lowering means for raising and lowering the sample tube, a supply pipe which is installed inside the pull-up furnace and supplies the sublimable dopant to a melt, and a connection means for connecting the sample tube and the supply pipe. The connection means is constructed from a ball joint structure comprising a convex member which projects from one end of the sample tube and a concave member which is provided at one end of the supply pipe and is formed to be engageable with the convex member. The contact surfaces of the convex member and the concave member are formed to be curved surfaces.
    Type: Application
    Filed: July 28, 2009
    Publication date: May 26, 2011
    Applicant: SUMCO TECHXIV CORPORATION
    Inventors: Yasuhito Narushima, Shinichi Kawazoe, Fukuo Ogawa, Toshimichi Kubota, Tomohiro Fukuda
  • Patent number: 7927422
    Abstract: The use of microfluidic structures enables high throughput screening of protein crystallization. In one embodiment, an integrated combinatoric mixing chip allows for precise metering of reagents to rapidly create a large number of potential crystallization conditions, with possible crystal formations observed on chip. In an alternative embodiment, the microfluidic structures may be utilized to explore phase space conditions of a particular protein crystallizing agent combination, thereby identifying promising conditions and allowing for subsequent focused attempts to obtain crystal growth.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: April 19, 2011
    Assignees: National Institutes of Health (NIH), The United States of America as represented by the Dept. of Health and Human Services (DHHS), U.S. Government NIH Division of Extramural Inventions and Technology Resources (DEITR)
    Inventors: Carl L. Hansen, Morten Sommer, Stephen R. Quake
  • Patent number: 7883578
    Abstract: Homogeneity residuals of the refractive index have a strong influence on the performance of lithography tools for both 193 and 157 nm application wavelengths. By systematic investigations of various defects in the real structure of CaF2 crystals, the origin of homogeneity residuals can be shown. Based on a quantitative analysis we define limiting values for the individual defects which can be either tolerated or controlled by optimized process steps, e.g. annealing. These correlations were carried out for all three relevant main crystal lattice orientations of CaF2 blanks. In conclusion we achieved a strong improvement of the critical parameters of both refractive index homogeneity and striae for large size lens blanks up to 270 mm diameter.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: February 8, 2011
    Assignee: Hellma Materials GmbH & Co. KG
    Inventors: Lutz Parthier, Michael Selle, Erik Foerster
  • Patent number: 7874210
    Abstract: An ultrasonic point level measurement instrument comprises a measurement circuit and a transducer. The transducer transmits and receives acoustic signals under control of the measurement circuit. An improvement in the transducer comprises a transducer housing including a pair of spaced apart legs to define a gap therebetween. Each leg includes an interior cavity. A pair of crystal assemblies each comprise a crystal mounted to a circuit board. The circuit board includes conduction paths for connection between the crystal and a terminal pad. Each crystal assembly is received in the interior cavity of one of the legs with the circuit board spacing the crystal from walls of the leg. A pair of cables are each connected between the measurement circuit and the terminal pad of one of the crystal assemblies so that the measurement circuit detects presence of a material in the gap.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: January 25, 2011
    Assignee: Magnetrol International, Inc.
    Inventors: Kevin M. Haynes, Paul G. Janitch, James A. Bosserman
  • Patent number: 7875117
    Abstract: An epitaxial wafer and a high-temperature heat treatment wafer having an excellent gettering capability are obtained by performing epitaxial growth or a high-temperature heat treatment. A relational equation relating the density to the radius of an oxygen precipitate introduced in a silicon crystal doped with nitrogen at the time of crystal growth can be derived from the nitrogen concentration and the cooling rate around 1100° C. during crystal growth, and the oxygen precipitate density to be obtained after a heat treatment can be predicted from the derived relational equation relating the oxygen precipitate density to the radius, the oxygen concentration, and the wafer heat treatment process. Also, an epitaxially grown wafer and a high-temperature annealed wafer whose oxygen precipitate density has been controlled to an appropriate density are obtained, using conditions predicted by the method.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: January 25, 2011
    Assignee: Sumco Techxiv Corporation
    Inventors: Kouzo Nakamura, Susumu Maeda, Kouichirou Hayashida, Takahisa Sugiman, Katsuhiko Sugisawa
  • Patent number: 7837790
    Abstract: Methods and apparatus for formation and treatment of epitaxial layers containing silicon and carbon are disclosed. Treatment of the epitaxial layer converts interstitial carbon to substitutional carbon. Specific embodiments pertain to the formation and treatment of epitaxial layers in semiconductor devices, for example, Metal Oxide Semiconductor Field Effect Transistor (MOSFET) devices. In specific embodiments, the treatment of the epitaxial layer involves annealing for short periods of time, for example, by laser annealing, millisecond annealing, rapid thermal annealing, and spike annealing in a environment containing nitrogen.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: November 23, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Yihwan Kim, Arkadii V. Samoilov
  • Patent number: 7837795
    Abstract: Methods are provided for low temperature, rapid baking to remove impurities from a semiconductor surface prior to in-situ deposition. Advantageously, a short, low temperature process consumes very little of the thermal budget, such that the process is suitable for advanced, high density circuits with shallow junctions. Furthermore, throughput is greatly improved by the low temperature bake, particularly in combination with low temperature plasma cleaning and low temperature wafer loading prior to the bake, and deposition after the bake at temperatures lower than conventional epitaxial deposition. The process enables epitaxial deposition of silicon-containing layers over semiconductor surfaces, particularly enabling epitaxial deposition over a silicon germanium base layer. By use of a low-temperature bake, the silicon germanium base layer can be cleaned to facilitate further epitaxial deposition without relaxing the strained crystal structure of the silicon germanium.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: November 23, 2010
    Assignee: ASM America, Inc.
    Inventors: Paul D. Brabant, Joe P. Italiano, Jianqing Wen
  • Patent number: 7833349
    Abstract: An object of the present invention is to provide a phase shifter for laser annealing which is capable of effectively preventing the sticking of particles. A first layer and a third layer are made of quartz glass, and a two-dimensional pattern of fine grooves is formed in the surfaces of the layers. The first layer and the third layer are arranged so that a second layer is sandwiched between the layers in a state in which the surfaces provided with the grooves face each other. A peripheral edge portion of the first layer is laminated on that of the third layer by a spacer. The second layer is made of an inactive gas introduced between the first layer and the third layer.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: November 16, 2010
    Assignee: Advanced LCD Technologies Development Center Co., Ltd.
    Inventor: Masayuki Jyumonji
  • Publication number: 20100242836
    Abstract: Pulling systems are disclosed for measuring the weight of an object coupled to a first end of a cable. The cable is routed over a pulley suspended from a load cell. The force exerted by the cable on the pulley is used to calculate the weight of the object. The second end of the cable is coupled to a drum which when rotated pulls the object by wrapping the cable around the drum. An arm is coupled to the pulley at one end and to a frame at another end. A path traveled by the cable between the pulley and the drum is substantially parallel to a longitudinal axis of the arm. Horizontal force components are transmitted by the arm to the frame and do not affect a force component measured by the load cell, thus increasing the accuracy of the calculated weight of the object.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 30, 2010
    Applicant: MEMC ELECTRONIC MATERIALS, INC.
    Inventors: Harold Korb, Richard J. Phillips
  • Patent number: 7776152
    Abstract: Apparatus and method for growing and observing the growth of epitaxial layers on a wafer. The apparatus includes: epitaxial growth apparatus; a source of light mounted to illuminate an entire surface of the wafer in the apparatus during growth of the epitaxial layer on the entire surface of the wafer; and apparatus for observing scattering of the light from the entire surface of the wafer during growth of the epitaxial layer on the entire surface of the wafer. The method includes growing the epitaxial layer on a surface of the wafer and observing scattering of the light from the entire surface of the wafer during growth of the epitaxial layer on the entire surface of the wafer. The growing process is varied in accordance with the observation. With an epitaxial layer of gallium nitride (GaN) the entire surface of the wafer is observed for balls of gallium.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: August 17, 2010
    Assignee: Raytheon Company
    Inventors: William E. Hoke, Theodore D. Kennedy
  • Patent number: 7758696
    Abstract: Methods and systems are provided for monitoring a solid-liquid interface, including providing a vessel configured to contain an at least partially melted material; detecting radiation reflected from a surface of a liquid portion of the at least partially melted material that is parallel with the liquid surface; measuring a disturbance on the surface; calculating at least one frequency associated with the disturbance; and determining a thickness of the liquid portion based on the at least one frequency, wherein the thickness is calculated based on L = f 2 ? w 2 g , where g is the gravitational constant, w is the horizontal width of the liquid, and f is the at least one frequency.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: July 20, 2010
    Assignee: BP Corporation North America Inc
    Inventors: Nathan G. Stoddard, Roger F. Clark, Tim Kary
  • Patent number: 7749865
    Abstract: A method for producing semiconductor wafers, from a semiconductor ingot, wherein an oxygen concentration distribution in the growth axis direction is measured in the ingot state (F2), a position at which the oxygen concentration is maximum or minimum in a range of a predetermined length is determined as a cut position according to the measurement results (F3), the ingot is cut in a perpendicular direction to the growth axis at the cut position into blocks each having the oxygen concentrations being maximum and minimum at both ends thereof (F4), each of the blocks is sliced, and thereby semiconductor wafers are produced. Thereby, there can be provided a technique by which when semiconductor wafers are produced from a semiconductor ingot, wafers having oxygen concentration being in a predetermined standard range can be certainly produced.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: July 6, 2010
    Assignee: Shin-Etsu Handotai Co., Ltd.
    Inventor: Makoto Iida
  • Patent number: 7727913
    Abstract: A method of crystallizing a semiconductor film including splitting a pulse laser beam oscillated from a laser oscillator, and synthesizing the split pulse laser beams after the split pulse laser beams have propagated through optical paths different in optical path length, modulating the synthesized pulse laser beam into a pulse laser beam by a phase modulating element, and irradiating a non-single-crystal film formed on a substrate with the laser beam to crystallize the non-single-crystal film. Splitting the pulse laser beam and synthesizing the split pulse laser beams are performed using at least three optical splitting/synthesizing units arranged in order, and include sequentially splitting one pulse laser beam split by one optical splitting/synthesizing unit by succeeding splitting/synthesizing unit, and synthesizing the other pulse laser beam split by one optical splitting/synthesizing unit with the other pulse laser beam split by preceding splitting/synthesizing unit.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: June 1, 2010
    Assignee: Advanced LCD Technologies Development Center Co., Ltd.
    Inventors: Shigeyuki Shimoto, Takashi Ono, Kazufumi Azuma, Masakiyo Matsumura
  • Publication number: 20100128253
    Abstract: The invention is a method for detecting the diameter of a single crystal grown by the Czochralski method, wherein the diameter of a single crystal is detected by both a camera and a load cell, the diameter detected by the camera is corrected based on a difference between the diameter detected by the camera and the diameter calculated by the load cell and a correction coefficient ? obtained in advance according to a growth rate of the single crystal, and a value obtained by the correction is set as the diameter of the single crystal, and a single crystal pulling apparatus including both a camera and a load cell for detecting the diameter of a single crystal to be pulled upwardly. As a result, it is possible to improve the measurement accuracy of the diameter of a large-diameter, heavy crystal and achieve the enhancement of yields and a reduction in variations in quality.
    Type: Application
    Filed: July 30, 2008
    Publication date: May 27, 2010
    Applicant: SHIN-ETSU HANDOTAI CO., LTD.
    Inventors: Takahiro Yanagimachi, Susumu Sonokawa
  • Patent number: 7704325
    Abstract: A crystal forming apparatus and method for using the apparatus, the method including depositing a precipitant solution in a site, incubating the site, during which time volatile vapor evaporates from the precipitant solution and accumulates in the site, and pumping the accumulated volatile vapor away from the site. An exemplary apparatus includes a sealed site except for a vent on the sealed site. In one embodiment, the vent is a passive vent that inhibits vapor diffusion out of the site. In another embodiment, the vent is an active vent that opens in response to a pressure differential. The present invention accelerates and controls the crystal growth process by pumping volatile vapor away from the sealed site.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: April 27, 2010
    Assignee: Neuro Probe Incorporated
    Inventor: Richard H. Goodwin, Jr.
  • Patent number: 7692778
    Abstract: The invention is to provide a transfer/inspection apparatus capable of inspecting any defect even during transferring and to provide a transfer/inspection apparatus capable of inspecting any defect in a non-contact state during transferring, even if the an object to be transferred is a transparent material. The transfer/inspection apparatus includes a transfer apparatus 2, and a defect inspector 3. The transfer apparatus 2 transfers a thin member 5 in a non-contacted state under control of voltage to be applied to an electrode face, and the defect inspector inspects any defect of the thin member during transferring the thin member. The transfer apparatus 2 is preferably provided with a light beam-transmitting portion (omitted portion 15) at a part of the electrode face for allowing the light beam therethrough.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: April 6, 2010
    Assignee: Tsukuba Seiko Ltd.
    Inventors: Tamaya Ubukata, Fow-lai Poh, Masahiro Yaguchi
  • Patent number: 7662233
    Abstract: Improved apparatus and method for SMFD ALD include a method designed to enhance chemical utilization as well as an apparatus that implements lower conductance out of SMFD-ALD process chamber while maintaining full compatibility with standard wafer transport. Improved SMFD source apparatuses (700, 700?, 700?) and methods from volatile and non-volatile liquid and solid precursors are disclosed, e.g., a method for substantially controlling the vapor pressure of a chemical source (722) within a source space comprising: sensing the accumulation of the chemical on a sensing surface (711); and controlling the temperature of the chemical source depending on said sensed accumulation.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: February 16, 2010
    Inventor: Ofer Sneh
  • Patent number: 7651567
    Abstract: A method of forming a polycrystalline silicon layer includes: disposing a mask over the amorphous silicon layer, the mask having a plurality of transmissive regions, the plurality of transmissive regions being disposed in a stairstep arrangement spaced apart from each other in a first direction and a second direction substantially perpendicular from the first direction, each transmissive region having a central portion and first and second side portions that are adjacent to opposite ends of the central portion along the first direction, and wherein each of the portions has a length along the first direction and a width along the second direction, and wherein the width of first and second portions decreases away from the central portion along the first direction; irradiating a laser beam onto the amorphous silicon layer a first time through the mask to form a plurality of first irradiated regions corresponding to the plurality of transmissive regions, each first irradiated region having a central portion, and
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: January 26, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Yun-Ho Jung
  • Patent number: 7635413
    Abstract: A SiC single crystal is produced by the solution growth method in which a seed crystal attached to a seed shaft is immersed in a solution of SiC dissolved in a melt of Si or a Si alloy and a SiC single crystal is allowed to grow on the seed crystal by gradually cooling the solution or by providing a temperature gradient therein. To this method, accelerated rotation of a crucible is applied by repeatedly accelerating to a prescribed rotational speed and holding at that speed and decelerating to a lower rotational speed or a 0 rotational speed. The rotational direction of the crucible may be reversed each acceleration. The seed shaft may also be rotated synchronously with the rotation of the crucible in the same or opposite rotational as the crucible. A large, good quality single crystal having no inclusions are produced with a high crystal growth rate.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: December 22, 2009
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Kazuhiko Kusunoki, Kazuhito Kamei, Nobuyoshi Yashiro, Akihiro Yauchi, Yoshihisa Ueda, Yutaka Itoh, Nobuhiro Okada