For Liquid Etchant Patents (Class 156/345.11)
  • Publication number: 20100093128
    Abstract: In a method for manufacturing an image sensor, readout circuitry is formed in a first substrate. A first interlayer dielectric is formed over the first substrate. An interconnection is formed at the first interlayer dielectric, and the interconnection is electrically connected to the readout circuitry. A second interlayer dielectric is formed over the interconnection. A via hole exposing an upper side of the interconnection is formed by etching a portion of the second interlayer dielectric using a photoresist pattern as an etch mask. A contact plug is formed in the via hole, while leaving the photoresist pattern. The photoresist pattern is then removed. An image sensing device is formed over the contact plug.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 15, 2010
    Inventor: Chung-Kyung Jung
  • Publication number: 20100055398
    Abstract: An apparatus for texturing two-sided wafers has a body capable of containing texturing chemistry (i.e., not necessarily containing the chemistry at this time), and a transport mechanism for transporting wafers through the texturing chemistry. The transport mechanism is configured to substantially wet no more than one side of wafers, transported through the body, with texturing chemistry.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 4, 2010
    Applicant: EVERGREEN SOLAR, INC.
    Inventors: Guenther Grupp Mueller, Brian McMullen
  • Publication number: 20100032410
    Abstract: A substrate processing apparatus includes a bath in which a liquid or a gas is fed, and a mechanism which feeds out a liquid or a gas into the bath. The substrate processing apparatus processes a to-be-processed substrate which is disposed in the bath. The mechanism includes a first feed-out device and a second feed-out device configured to feed out the liquid or gas into the bath, the first feed-in device configured to start/stop the feed-out of the liquid or gas from the first feed-out device, and second feed-in device configured to start/stop the feed-out of the liquid or gas from the second feed-out device.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 11, 2010
    Inventors: Hiroshi Ootaguro, Yasunori Kihara, Yuji Ogino
  • Publication number: 20100015810
    Abstract: A processing object 2 is sucked and fixed by a sucker 11 and rotated by a rotator 12. In that state, a processing liquid supplied from a processing liquid supply 22 is applied through a processing liquid application tube 21 onto a surface of the processing object 2. Thermal electrons emitted from a thermionic source 33 are accelerated by an acceleration electrode 34 and pass through a Be film 32 to impinge upon the processing liquid on the surface of the processing object 2. When the processing liquid on the surface of the processing object is irradiated with the electron beam, the processing liquid is ionized or radicalized to become active, thereby effectively processing the surface of the processing object 2.
    Type: Application
    Filed: June 22, 2007
    Publication date: January 21, 2010
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yutaro Yanagisawa, Katsuyoshi Fujita
  • Publication number: 20100015756
    Abstract: Embodiments of the invention contemplate the formation of a high efficiency solar cell using a novel processing sequence to form a solar cell device. In one embodiment, the methods include forming a doping layer on a back surface of a substrate, heating the doping layer and substrate to cause the doping layer diffuse into the back surface of the substrate, texturing a front surface of the substrate after heating the doping layer and the substrate, forming a dielectric layer on the back surface of the substrate, removing portions of the dielectric layer from the back surface to from a plurality of exposed regions of the substrate, and depositing a metal layer over the back surface of the substrate, wherein the metal layer is in electrical communication with at least one of the plurality of exposed regions on the substrate, and at least one of the exposed regions has dopant atoms provided from the doping layer.
    Type: Application
    Filed: July 16, 2009
    Publication date: January 21, 2010
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Timothy W. Weidman, Rohit Mishra, Michael P. Stewart, Yonghwa Chris Cha, Kapila P. Wijekoon, Hongbin Fang
  • Publication number: 20090301515
    Abstract: A method for chemically stripping a metallic coating from a substrate is described. The coating is treated in the presence of microwave energy with a solution containing at least one acid known to dissolve the coating. The application of microwave energy accelerates the dissolution and allows for the use of diluted solutions. Coatings of interest include diffusion aluminides on superalloy substrates.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 10, 2009
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Garimella Balaji Rao, Chee Kin Woo, Ranjan A/L S. Balakrishnan
  • Publication number: 20090250431
    Abstract: A substrate processing method that processes a substrate on which a plurality of patterns adjacent to each other are formed, has: supplying a first processing liquid to a principal surface of the substrate that is dry and has the patterns formed thereon to make the first processing liquid adhere to the principal surface of the substrate; and supplying a second processing liquid having a higher surface tension than the first processing liquid to the principal surface of the substrate in the state where the first processing liquid adheres to the principal surface of the substrate to process the principal surface of the substrate with the second processing liquid.
    Type: Application
    Filed: March 16, 2009
    Publication date: October 8, 2009
    Inventors: Minako INUKAI, Yoshihiro OGAWA, Hiroshi TOMITA, Hiroyasu IIMORI, Yuji YAMADA, Yoshihiro UOZUMI, Linan JI, Kaori UMEZAWA, Hisadhi OKUCHI
  • Publication number: 20090227114
    Abstract: A process for etching the surfaces of semiconductor substrates utilizes a texturing tank which introduces a process fluid through a circulating system. The process fluid is heated to a desired temperature and maintained at a desired concentration prior to entering a processing area where laminar flow is produced to more quickly and uniformly roughen the surface of semiconductor substrates. The texturing tank permits removal of bubbles and eliminates temperature stratification in the processing area.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 10, 2009
    Applicant: HEATEFLEX CORPORATION
    Inventors: Jorge Ramirez, Hector Joel Castaneda, Melissa A. Tiongco
  • Patent number: 7582180
    Abstract: Systems and methods for processing microfeature workpieces are disclosed herein. In one embodiment, the system comprises a processing chamber having a workpiece processing site configured to receive a microfeature workpiece and a main inlet through which a processing fluid can flow into the processing chamber. The system further comprises a plate in the processing chamber between the main inlet and the workpiece processing site. The plate has a first side generally facing the main inlet and a second side opposite the first side. The plate further includes a plurality of passageways extending from the first side of the plate to the second side. The individual passageways include an inlet portion projecting from the first side of the plate by a separation distance.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: September 1, 2009
    Assignee: Micron Technology, Inc.
    Inventor: Timothy James Kennedy
  • Patent number: 7566378
    Abstract: The invention relates to an arrangement of electronic semiconductor components on a carrier system for treating the semiconductor components with a liquid medium. A semiconductor component is detachably mounted on the carrier system with the active side thereof in such a way that the arrangement comprises a gap at least in the edge region and partially between the semiconductor components and the carrier system. The aim of the invention is to provide a detachable arrangement of electronic semiconductor components on a mechanically stable carrier system for safely handling the semiconductor components during the production process, wherein the capillarity of the gap between the semiconductor components and the carrier system is reduced in a controlled manner, thus preventing the damaging effect of a liquid medium seeping into the gap. To this end, the surface of the carrier system is shaped in such a way that the gap is widened along the entire edge region thereof.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: July 28, 2009
    Assignee: Infineon Technologies AG
    Inventors: Stephan Bradl, Michael Melzl, Josef Schwaiger, Thilo Stache
  • Publication number: 20090176349
    Abstract: A process and an apparatus are described for the treatment of wafers, in particular for the thinning of wafers. A wafer with a carrier layer and an interlayer arranged between the carrier layer and the wafer is also described, in which the interlayer is a plasmapolymeric layer that adheres to the wafer and adheres more strongly to the carrier layer than to the wafer.
    Type: Application
    Filed: January 26, 2009
    Publication date: July 9, 2009
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Andreas JAKOB, Klaus-D VISSING, Volkmar STENZEL
  • Patent number: 7556711
    Abstract: A semiconductor device manufacturing apparatus is disclosed. The semiconductor device manufacturing apparatus applies a process to a semiconductor wafer by supplying a vapor of a corrosive liquid source to a processing container. An electrode is immersed in a storing container which stores the corrosive liquid source. The main material of the electrode is a metal whose ionization tendency is less than that of a metal of the storing container, and a protection current is applied between them by a DC power source. Or another electrode is used. The main material of the electrode is a metal whose ionization tendency is greater than that of the metal of the storing container and the metal of the electrode does not damage the semiconductor wafer. A protection current is applied between the storing container and the electrode by utilizing the difference of the ionization tendency between them.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: July 7, 2009
    Assignee: Tokyo Electron Limited
    Inventor: Hidenori Miyoshi
  • Patent number: 7531060
    Abstract: An intermediate module comprising a dimensionally stable mounting module and a first device attached to the dimensionally stable mounting module. The dimensionally stable mounting module can include a front docking unit with front alignment elements for connecting the mounting module to a load/unload module, and a rear docking unit with rear alignment elements for connecting the mounting module to a main processing unit. The mounting module can further include a deck between the front docking unit and the rear docking unit, positioning elements at the deck, and attachment elements at the deck. The first device can be a processing chamber, an annealing station, a metrology station, a buffer station, or another type of component for holding or otherwise performing a function on a workpiece.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: May 12, 2009
    Assignee: Semitool, Inc.
    Inventors: Paul Wirth, Daniel J. Woodruff
  • Publication number: 20090114619
    Abstract: A fine pattern is formed on a surface of a processing object without using photoresist. A wet etching for the processing object in an area to which ultraviolet light is applied is performed by bringing a solution in which nitrous oxide (N2O) is dissolved into contact with the processing object and applying the ultraviolet light to the solution in a vicinity of an area to the processing object other than portions shielded with a mask whereupon a light shielding pattern is formed.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 7, 2009
    Inventors: Ryuji Sotoaka, Keiichi Tanaka, Tomoyuki Azuma
  • Patent number: 7527743
    Abstract: An apparatus and a method for etching insulating film prevents generation of spots by spraying etchant on a lower surface of the substrate as well as the upper surface.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: May 5, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Seok Won Lee, Sang Min Jang, Sang Kyu Kim
  • Patent number: 7524396
    Abstract: A processing apparatus includes a processing bath having a liquid injection port in the bottom thereof, a rectifier plate located between the bottom of the processing bath and a position at which an object to be processed is positioned, and a distribution portion extending between the rectifier plate and the liquid injection port and over the liquid injection port. The distribution portion includes an opposing portion opposing the liquid injection port, a surrounding portion surrounding a space between the opposing portion and the liquid injection port, and a guard portion or extended portion extending outwardly from the bottom end of the surrounding portion.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: April 28, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichi Masaki, Yasushi Fujisawa
  • Patent number: 7510974
    Abstract: A CMP process is provided. A first polishing process on a wafer is performed using a first hard polishing pad with a first slurry. Then, a buffering process on the wafer is performed using a soft polishing pad with a cleaning agent to buffer the pH value in the first polishing process and to remove at least portion of the first slurry and the cleaning agent by the contact with the first soft polishing pad simultaneously. Thereafter, a second polishing process on the wafer is performed using a second hard polishing pad with a second slurry such that the pH value after the buffering process is between the pH value in the first polishing process and the pH value in the second polishing process. The method can avoid the scratch issue of wafer surface by particles resulting from pH shock and cross contamination.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: March 31, 2009
    Assignee: United Microelectronics Corp.
    Inventors: Chih-Yueh Li, Kai-Chun Yang, Tzu-Yi Chuang, Chien-Hsuan Chen, Min-Hao Yeh
  • Publication number: 20090081881
    Abstract: An additive containing a hexafluorosilicic acid solution (H2SiF6+H2O) is sequentially inputted into a phosphoric acid solution pooled in an immersion bath from an additive input mechanism. Further, a trap agent containing a fluoroboric acid solution (HBF4+H2O) is inputted into the phosphoric acid solution from a trap agent input mechanism. F? which accelerates etching of a silicon nitride film is added as appropriate by sequentially inputting the additive and siloxane which increases by the sequential input is etched with hydrofluoric acid generated by decomposition of the fluoroboric acid, to thereby suppress a significant increase in the concentration of siloxane. This makes it possible to maintain respective initial etching rates of the silicon nitride film and a silicon oxide film.
    Type: Application
    Filed: September 3, 2008
    Publication date: March 26, 2009
    Inventor: Hiromi Kiyose
  • Publication number: 20090075421
    Abstract: A method of wet etching semiconductor zinc tin oxide includes submerging a semiconductor zinc tin oxide film in a bath solution. The film is partially covered with a pattern of protective material, and the bath solution etches semiconductor zinc tin oxide film not covered by the protective material. A system for wet etching semiconductor zinc tin oxide includes a bath containing a bath solution. The bath solution is effective to wet etch the semiconductor zinc tin oxide.
    Type: Application
    Filed: September 19, 2007
    Publication date: March 19, 2009
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Eric Wiedemann, Qin Liu
  • Patent number: 7494597
    Abstract: Disclosed are a method and apparatus for etching disk-shaped members, especially a method and apparatus for etching semiconductor wafers. In a method wherein wafers (30) are rotated and etched in an etching chamber (12) which is filled with an etching solution, a non-rotating cell plate (26) is disposed between two rotating wafers (30). In an etching apparatus wherein multiple wafers (30) are supported and rotated by a rod (16), the cell plate (26) is disposed between each two wafers (30). The cell plate (26) has a surface area roughly equivalent to that of the wafer (30).
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: February 24, 2009
    Assignee: Sumco Techxiv Corporation
    Inventors: Tadamitsu Miyazaki, Kazuya Hirayama, Hisaya Fukunaga, Hiroyasu Futamura
  • Publication number: 20090042385
    Abstract: A method of manufacturing a metal line according to embodiments includes forming an interlayer dielectric layer over a semiconductor substrate. A dielectric layer is formed over the interlayer dielectric layer. A trench may be formed by etching the dielectric layer and the interlayer dielectric layer. A metal material may be disposed over the interlayer dielectric layer including the trench. A first planarization process may be performed on the metal material using the dielectric layer as an etch stop layer. A wet etch process may be performed on the semiconductor substrate subjected the first planarization process. A second planarization process may be performed on interlayer dielectric layer subjected to the wet etch process.
    Type: Application
    Filed: July 22, 2008
    Publication date: February 12, 2009
    Inventor: Myung-Il Kang
  • Publication number: 20090032492
    Abstract: The invention relates to a method and apparatus for wet-chemical processes (cleaning, etching, stripping, coating, dehydration) in a continuous method for flat, thin and fracture-sensitive substrates, the substrate transport and the wet process being effected by media-absorbing rollers.
    Type: Application
    Filed: May 24, 2008
    Publication date: February 5, 2009
    Applicant: ACP - ADVANCED CLEAN PRODUCTION GMBH
    Inventor: Horst Kunze-Concewitz
  • Publication number: 20090032497
    Abstract: An acidic etcher solution for etching a substrate's surface. The acidic etcher solution includes an acid and a pH indicator, the pH indicator having at least one color transition at a pH below 7. The acidic etcher solution having an initial color at an initial pH when applied to the surface to allow determination of the evenness of the coating and the etcher having a second color at a second pH higher than the first pH wherein visual inspection allows for a determination that the etcher is substantially finished reacting.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Inventors: Jigui Li, Ming-Ren Tarng
  • Patent number: 7479205
    Abstract: The substrate processing apparatus is provided with a gas-liquid mixing nozzle for generating a process liquid mist by mixing a liquid and a pressurized gas, to discharge the process liquid mist to a substrate at high speeds. The liquid may be remover liquid, intermediate rinse liquid or deionized water. The reaction products which having been generated on the substrate in etching process is removed at high speeds with the flow of the mist, whereby the quality of the process is improved.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: January 20, 2009
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Seiichiro Okuda, Hiroaki Sugimoto, Takuya Kuroda, Masanobu Sato, Sadao Hirae, Shuichi Yasuda, Kenya Morinishi, Masayoshi Imai
  • Patent number: 7476290
    Abstract: The present invention provides a substrate processing apparatus and a substrate processing method suitable for use in an etching apparatus which etches a thin film formed on a peripheral portion of a substrate. The present invention also provides a substrate processing apparatus and a substrate processing method suitable for use in a cleaning apparatus which performs a cleaning process on a substrate which has been etched. The substrate processing apparatus for use in etching includes a substrate holder for holding a substrate substantially horizontally and rotating the substrate, and a processing liquid supply unit for supplying a processing liquid onto a peripheral portion of the substrate which is being rotated in such a manner that the processing liquid is stationary with respect to the substrate.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: January 13, 2009
    Assignee: Ebara Corporation
    Inventors: Takayuki Saito, Tsukuru Suzuki, Kaoru Yamada, Kenya Ito, Masayuki Kamezawa, Kenji Yamaguchi
  • Publication number: 20090008364
    Abstract: The invention relates to a method for etching substrates (4) received in an etching solution (2). Said method comprises the following steps: A basin (1) which can receive the etching solution (2) is prepared, the substrate (4) is completely immersed in the etching solution (2), a flow which surrounds the substrate (4) is produced and the speed and/or direction of the flow can be periodically altered.
    Type: Application
    Filed: December 7, 2005
    Publication date: January 8, 2009
    Applicant: Astec Halbleitertechnologie GmbH
    Inventors: Juergen Schweckendiek, Joerg Franzke, Matthias Niese, Juergen Osterkamp
  • Publication number: 20090011600
    Abstract: The present invention is directed to a method and an apparatus for manufacturing a semiconductor device including step S22 to form an insulating film on a front surface of a semiconductor wafer that is a surface on which a semiconductor element is to be formed and on a back surface that is a surface opposing the front surface, step S26 to remove the insulating film formed on the back surface by selectively providing a first chemical on the back surface of the semiconductor wafer, and step S30 to remove the insulating film formed on the front surface by simultaneously immersing the plurality of semiconductor wafers in a second chemical.
    Type: Application
    Filed: July 1, 2008
    Publication date: January 8, 2009
    Applicant: Spansion LLC
    Inventors: Watanabe TOMOHIRO, Fumihiko INOUE
  • Patent number: 7470344
    Abstract: A method for dispensing a chemical, such as an edge bead removal solvent, onto a semiconductor wafer comprising the steps of dispensing the chemical selectively onto the wafer and applying a suction to the area immediately surrounding the location at which the chemical is dispensed onto the wafer. Preferably, the suction is applied substantially simultaneously with the dispensing of the chemical. One specific version of the invention provides an edge bead removal system wherein suction is applied to the area immediately surrounding the solvent dispensing nozzle to remove dissolved coating material and excess solvent from the wafer. In one aspect of this system, an apparatus for removing the edge bead includes a mechanism for dispensing a solvent selectively onto the edge of the wafer, and a mechanism surrounding the dispensing mechanism for vacuuming excess solvent and dissolved coating material from the edge of the wafer.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: December 30, 2008
    Assignee: Micron Technology, Inc.
    Inventor: Trung T. Doan
  • Publication number: 20080296262
    Abstract: A simple process is disclosed for treating substrates having pre-structured zinc oxide layers on rigid or flexible supports. The ZnO is treated with an etching medium then with a cleaning liquid. The treatment with the etching and cleaning liquids is carried out while the substrate is conveyed through a device. The process is technically simple to implement and makes it possible to regularly and homogeneously roughen and texturise ZnO layers of up to 1 m2. The device for treating substrates having pre-structured zinc oxide layers on rigid or flexible supports has for that purpose a first means for treating the substrate with an etching liquid, a second means for treating the substrate with a cleaning liquid, and another means, in particular transport rollers, for conveying the substrate from the first to the second means.
    Type: Application
    Filed: March 31, 2005
    Publication date: December 4, 2008
    Inventors: Joachim Muller, Gunnar Schope, Hildegard Siekmann, Bernd Rech, Tobias Repmann, Wolfgang Apenzeller, Brigitte Sehrbrock
  • Publication number: 20080277380
    Abstract: Processes and apparatuses for producing a porous material, such as nano-porous silicon (npSi) media suitable for storage and retrieval of elemental hydrogen. Processes of this invention generally entail applying a magnetic field to a substrate that contains charge carriers and is in contact with an etchant, and then etching the substrate with the etchant while relative movement occurs between the substrate and the magnetic field. During etching, the charge carriers move relative to the substrate and the magnetic field, and porosity forms at surfaces of the substrate contacting the etchant.
    Type: Application
    Filed: June 18, 2007
    Publication date: November 13, 2008
    Applicant: PACKER ENGINEERING, INC.
    Inventors: John C. Christenson, Peter J. Schubert
  • Publication number: 20080264905
    Abstract: Methods and systems for measuring a characteristic of a substrate or preparing a substrate for analysis are provided. One method for measuring a characteristic of a substrate includes removing a portion of a feature on the substrate using an electron beam to expose a cross-sectional profile of a remaining portion of the feature. The feature may be a photoresist feature. The method also includes measuring a characteristic of the cross-sectional profile. A method for preparing a substrate for analysis includes removing a portion of a material on the substrate proximate to a defect using chemical etching in combination with an electron beam. The defect may be a subsurface defect or a partially subsurface defect. Another method for preparing a substrate for analysis includes removing a portion of a material on a substrate proximate to a defect using chemical etching in combination with an electron beam and a light beam.
    Type: Application
    Filed: April 28, 2008
    Publication date: October 30, 2008
    Inventors: Mehran Nasser-Ghodsi, Mark Borowicz, Dave Bakker, Mehdi Vaez-Iravani, Prashant Aji, Rudy F. Garcia, Tzu Chin Chuang
  • Publication number: 20080242103
    Abstract: A method of manufacturing a semiconductor device having a process for cleaning a semiconductor substrate after the semiconductor substrate is etched for patterning includes a first process of preparing the semiconductor substrate having a first temperature, a second process of setting the semiconductor substrate at a second temperature, a third process of etching the semiconductor substrate having the second temperature by etching liquid having a third temperature, a fourth process of cleaning the semiconductor substrate to which the etching liquid is adhered, by ultrapure water having a fourth temperature, wherein the second temperature is set at the range between the first and the third temperatures.
    Type: Application
    Filed: March 12, 2008
    Publication date: October 2, 2008
    Inventors: Kazuhiko Ohmuro, Takayuki Izumi, Ryoji Shigemasa, Tomoyuki Ohshima
  • Publication number: 20080236745
    Abstract: A method and apparatus for fabricating or altering a microstructure use means for heating to facilitate a local chemical reaction that forms or alters the submicrostructure.
    Type: Application
    Filed: October 31, 2007
    Publication date: October 2, 2008
    Inventors: SUPRATIK GUHA, Hendrik F. Hamann, Herschel M. Marchman, Robert J. Von Gutfeld
  • Patent number: 7427333
    Abstract: In an inventive resist removing method, sulfuric acid and hydrogen peroxide water are supplied to a surface of a substrate to remove a resist from the substrate surface. Thereafter, hydrogen peroxide water is supplied to the substrate surface to remove the sulfuric acid from the substrate surface.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: September 23, 2008
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventor: Masayuki Wada
  • Publication number: 20080223826
    Abstract: Methods and apparatuses for using a semi-permeable membrane to deliver a reagent to a surface in a topographically selective manner are provided. The methods and apparatuses are particularly useful for removing sulfur-containing electrocatalysts from copper surfaces using a semi-permeable membrane to deliver an oxidizing agent to a catalyst-coated surface.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 18, 2008
    Inventor: Stephen Mazur
  • Publication number: 20080203058
    Abstract: A method for developing a substrate includes a developing step for supplying a developer to the substrate, and a neutralizing and removing step for supplying a treating solution containing a neutralizing material to the substrate to neutralize the developer, and neutralizing the developer and removing the developer from the substrate. In the neutralizing and removing step, the developer is neutralized by the treating solution. This neutralization reaction forms a product (salt) which easily melts into the treating solution and does not precipitate. Thus, the product is removable from the substrate along with the treating solution. Therefore, the developer is inhibited from remaining on the substrate. As a result, it is possible to prevent post-develop defects due to “residues of the developer” or the developer remaining on the substrate.
    Type: Application
    Filed: February 15, 2008
    Publication date: August 28, 2008
    Applicant: Sokudo Co., Ltd.
    Inventors: Masahiko Harumoto, Akira Yamaguchi, Akihiro Hisai
  • Patent number: 7399713
    Abstract: This invention provides a process for treating a workpiece having a front side, a back side, and an outer perimeter. In accordance with the process, a processing fluid is selectively applied or excluded from an outer peripheral margin of at least one of the front or back sides or the workpiece. Exclusion and/or application of the processing fluid occurs by applying one or more processing fluids to the workpiece as the workpiece and corresponding reactor are spinning about an axis of rotation that is generally orthogonal to the center of the face of the workpiece being processed. The flow rate of the one or more processing fluids, fluid pressure, and/or spin rate are used to control the extent to which the processing fluid is selectively applied or excluded from the outer peripheral margin.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: July 15, 2008
    Assignee: Semitool, Inc.
    Inventors: Brian K. Aegerter, Curt T. Dundas, Tom L. Ritzdorf, Gary L. Curtis, Michael Jolley, Steven L. Peace
  • Patent number: 7393431
    Abstract: An etching apparatus is disclosed, in which a bubble plate includes a plurality of air tubes having a plurality of holes being arranged in a straight line, and a straight frame having an air path and being connected to both ends of the air tube. The etching apparatus of the present invention reduces the probability of prolonged exposure to harmful chemicals by workers. Additionally, the guide does not have to be separated from the etching apparatus to separate the bubble plate. The etching apparatus reduces the probability of etching inferiority and/or substrate damage caused by incorrect assembly.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: July 1, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Jong Soo Kim
  • Publication number: 20080142484
    Abstract: The present invention provides an auxiliary method for wet etching by oscillation flow modification and an device for the same. The method for wet etching by oscillation flow modification includes steps of providing a metallic substrate, etching the metallic substrate with an etchant, and oscillating the etchant during etching the metallic substrate.
    Type: Application
    Filed: June 22, 2007
    Publication date: June 19, 2008
    Inventor: Wang Ming-Wen
  • Patent number: 7377991
    Abstract: An ultrasonic etching apparatus for chemically-etching a workpiece is disclosed. The apparatus includes an outer tank at least partially filled with an aqueous solution, an inner tank at least partially disposed within the outer tank and in contact with aqueous solution, the inner tank at least partially filled with an etching solution, a lid engaged with the mouth of said inner tank; and an ultrasonic transducer coupled to the outer tank to impart ultrasonic energy to the etching solution in said inner tank. Also disclosed are methods of using the apparatus to etch workpieces.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 27, 2008
    Assignee: Applied Materials, Inc.
    Inventors: Samantha Tan, Ning Chen
  • Publication number: 20080099430
    Abstract: A method and apparatus are provided to decrease the diameter of the end of an optical fiber in order to make it possible to arrange optical fibers in an array with very high pitch. Also provided is an optical device comprising a plurality of optical fibers, each fiber formed of a body having a first diameter and an external coating, wherein end portions of the fibers have no external coating thereon and have a second diameter which is smaller than the first diameter.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 1, 2008
    Inventors: David Brooks, Eli Arad, Serge Steinblatt
  • Publication number: 20080096393
    Abstract: An apparatus for etching a semiconductor substrate may include a bath, a reaction preventing layer, and a nozzle. The bath may receive a chemical solution. Grooves may be formed at the inner wall of the bath. The reaction preventing layer may be formed on the inner wall and in the grooves of the bath to reduce or prevent a chemical reaction between the chemical solution and the bath. The nozzle may supply the chemical solution to the bath. In a method of etching a semiconductor substrate, the semiconductor substrate having trench structures and an insulation layer pattern may be prepared. The semiconductor substrate may then be dipped into the bath having the reaction preventing layer in which the chemical solution is received. The semiconductor substrate may be reacted with the chemical solution by blocking the chemical reaction between the chemical solution and the bath to etch the insulation layer pattern and the trench structure at a uniform rate.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 24, 2008
    Inventors: In-Gi Kim, Dae-Hyuk Chung, Dae-Hyuk Kang
  • Publication number: 20080073030
    Abstract: An apparatus according to the present invention, includes an etching solution tank which contains etching solution used for a wet etching process, a wet etching process to a semiconductor wafer being carried out in the etching solution tank; a nitrogen gas supply component which supplies a nitrogen gas (N2), which is used for a wet etching process in the etching solution tank; a flow regulating component which delivers the nitrogen gas (N2) supplied from said nitrogen gas supply component into said etching solution tank during a wet etching process, and which continues to deliver said nitrogen gas into said etching solution tank during a standby phase in which a wet etching process is not being performed; and a bubbling component which bubbles said nitrogen gas (N2), supplied from said nitrogen gas supply component, in said etching solution tank during a wet etching process.
    Type: Application
    Filed: July 25, 2007
    Publication date: March 27, 2008
    Applicant: OKI ELECTRIC INDUSTRY CO., LTD.
    Inventor: Kazumori Yoshino
  • Patent number: 7332054
    Abstract: In a process using a hot phosphoric acid etchant (12) to etch silicon nitride on a semiconductor wafer (15) submerged in a tank (11) of the etchant (12), a recirculating path is established for the etchant (12). A porous filter (35) is coated with silicon nitride and installed in the recirculating path. As the etchant (12) in the recirculating path flows through the porous filter (35), the silicon nitride on the porous filter (35) dissolves into the etchant (12). In the tank (11), the silicon nitride dissolved in the etchant (12) significantly suppresses the etch of silicon dioxide on the semiconductor wafer (15), thereby enhancing the etch selectivity of the process. Monitoring and maintaining the concentration of the silicon nitride in the etchant (12) stabilizes the etch selectivity of the process.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: February 19, 2008
    Assignee: International Business Machines Corporation
    Inventors: Arne W. Ballantine, Scott A. Estes, Emily E. Fisch, Gary Milo, Ronald A. Warren
  • Publication number: 20080011713
    Abstract: A substrate processing apparatus of the invention has a self-propelled carrying mechanism 15 configured to enable a processing target substrate W to be carried to/from each of liquid processing apparatuses HB, COT and DEV where at least two liquid processing apparatuses W are linearly disposed and to be movable in parallel with an arrangement direction of the liquid processing apparatuses HB, COT and DEV, substrate delivering/receiving mechanism 20 and 21 configured to enable the processing target substrate W to be delivered and received to/from the self-propelled carrying mechanism 15, and a non-self-propelled carrying mechanism 10 configured to enable the processing target substrate to be delivered and received to/from the substrate delivering/receiving mechanisms 20 and 21.
    Type: Application
    Filed: December 27, 2006
    Publication date: January 17, 2008
    Applicant: Yoshitake ITO
    Inventor: Yoshitake Ito
  • Publication number: 20070240824
    Abstract: A liquid processing apparatus includes a substrate holding member configured to rotate along with a substrate held thereon in a horizontal state; a rotary cup configured to surround the substrate and to rotate along with the substrate; a liquid supply mechanism configured to supply a process liquid onto at least a front surface of the substrate; and an exhaust/drain section configured to perform gas-exhausting and liquid-draining out of the rotary cup; and a guide member disposed to surround the substrate, having an upper surface to be substantially continued to the front surface of the substrate, and configured to rotate along with the substrate holding member and the rotary cup, such that a process liquid supplied onto the front surface of the substrate and thrown off from the substrate is guided by the upper surface of the guide member from the rotary cup to the exhaust/drain section.
    Type: Application
    Filed: April 17, 2007
    Publication date: October 18, 2007
    Inventors: Satoshi Kaneko, Kazuhisa Matsumoto, Norihiro Ito, Masami Akimoto, Takayuki Toshima, Hiromitsu Nanba
  • Publication number: 20070235132
    Abstract: Provided is a photoresist (PR) stripping apparatus that enables the recycling of a photoresist stripper and utilizes a continuous filtering action during a filter operation. The PR-stripping apparatus includes a PR stripping tank for receiving a substrate having a PR pattern is disposed and for stripping of the PR pattern, a PR stripper recovery pipe for recovering a PR stripper from the PR stripping tank two or more filter units for filtering the PR stripper returned by the PR striper recovery pipe, and a PR stripper supply pipe for supplying the filtered PR stripper to the PR stripping tank. The two or more filter units are connected in parallel to each other between the PR stripper recovery pipe and the PR stripper supply pipe.
    Type: Application
    Filed: March 23, 2007
    Publication date: October 11, 2007
    Inventors: Hong-sick Park, Jong-hyun Choung, Sun-young Hong, Bong-kyun Kim, Won-suk Shin, Byeong-jin Lee
  • Publication number: 20070227655
    Abstract: A processing method for a wafer includes: preparing a wafer which has a device region having plural devices formed on a surface of the wafer; and a peripheral reinforcing portion which is integrally formed around the device region and has a projection projecting outwardly on a rear surface of the wafer. The processing method further includes: removing at least the projection of the peripheral reinforcing portion of the wafer; and transferring the wafer after the removing. In the removing, while the wafer is held on a holding table such that the rear surface of the wafer is exposed and the surface of the wafer closely contacts the holding table, at least the projection of the peripheral reinforcing portion is removed. After the removing of at least the projection, while the wafer is held on the holding table, a holding tape is applied to the rear surface of the wafer and the holding tape is supported by a frame.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 4, 2007
    Inventors: Keiichi Kajiyama, Takatoshi Masuda
  • Publication number: 20070215572
    Abstract: A processing fluid is prepared by mixing purified water and methanol as a solvent with SCCO2, and the processing fluid is brought into contact with a surface of a substrate so as to form oxide film on the surface of the substrate. In this processing fluid, SCCO2 functions as a carrier medium while —OH functional group (hydroxyl group) disperse in the SCCO2 as active chemical species. Such the highly motile and highly concentrated SCCO2 is used as a carrier medium, while the active chemical species are mixed with carrier medium. Because of this, excessive presence of active chemical species is prevented in the atmosphere in contact with the surface of the substrate. The active chemical species demonstrates superior diffusiveness, and moreover, even a small amount of solvent contains large amount of active chemical species. Therefore, the fresh active chemical species are constantly supplied to the surface of the substrate, reacting excellently with the surface of the substrate, thereby forming oxide film.
    Type: Application
    Filed: March 16, 2007
    Publication date: September 20, 2007
    Inventor: Kimitsugu Saito
  • Patent number: 7267742
    Abstract: An etching apparatus includes a chamber containing an etching solution including first and second components and water, a concentration of the water in the etching solution is at a specified level or lower; a circulation path circulating the etching solution; a concentration controller sampling the etching liquid from the circulation path and controls concentrations of the etching solution respectively; and a refilling chemical liquid feeder feeding a refilling chemical liquid including the first component having a concentration higher than the first component in the etching solution.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: September 11, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisashi Okuchi, Hiroyasu Iimori, Mami Saito, Yoshihiro Ogawa, Hiroshi Tomita, Soichi Nadahara