Gas Phase And Nongaseous Phase Etching On The Same Substrate Patents (Class 216/57)
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Patent number: 11871667Abstract: Methods and apparatus for processing a substrate are provided herein. For example, a system for processing a substrate includes a process chamber comprising a first processing volume and a second processing volume, a carrier disposed in the first processing volume, comprising a first thermoelectric module (TEM), and configured to support the substrate while the substrate is being heated or cooled, a chuck disposed within the second processing volume, comprising a second TEM, and configured to receive the substrate from the carrier and to support the substrate while the substrate is being heated or cooled, and a system controller configured to monitor a temperature of at least one of the substrate, the carrier, or the chuck during operation, and based on the temperature of the at least one of the substrate, the carrier, or the chuck, supply current to at least one of the first TEM or the second TEM.Type: GrantFiled: September 17, 2020Date of Patent: January 9, 2024Assignee: APPLIED MATERIALS, INC.Inventors: Sriskantharajah Thirunavukarasu, Puay Han Tan, Karrthik Parathithasan, Jun-Liang Su, Fang Jie Lim, Chin Wei Tan, Wei Jie Dickson Teo
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Patent number: 11217479Abstract: A multiple metallization scheme in conductive features of a device uses ion implantation in a first metal layer to make a portion of the first metal layer soluble to a wet cleaning agent. The soluble portion may then be removed by a wet cleaning process and a subsequent second metal layer deposited over the first metal layer. An additional layer may be formed by a second ion implantation in the second metal layer may be used to make a controllable portion of the second metal layer soluble to a wet cleaning agent. The soluble portion of the second metal layer may be removed by a wet cleaning process. The process of depositing metal layers, implanting ions, and removing soluble portions, may be repeated until a desired number of metal layers are provided.Type: GrantFiled: January 11, 2019Date of Patent: January 4, 2022Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hsin-Ying Ho, Fang-I Chih, Hui-Chi Huang, Kei-Wei Chen
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Patent number: 10937669Abstract: A substrate solution-treatment apparatus includes: a substrate holding part for holding a substrate; a nozzle for supplying a treatment solution onto the substrate; a supply line; a flow rate control mechanism including a flow rate meter and a flow rate control valve installed in the supply line; an opening/closing valve installed in the supply line; and a control part for controlling operations of the flow rate control mechanism and the opening/closing valve. The flow rate control mechanism controls the flow rate control valve such that a detection value of the flow rate meter coincides with a flow rate target value provided from the control part. The control part controls the nozzle to supply the treatment solution onto the substrate with the opening/closing valve opened, and provides a first flow rate as the flow rate target value to the flow rate control mechanism.Type: GrantFiled: May 25, 2018Date of Patent: March 2, 2021Assignee: TOKYO ELECTRON LIMITEDInventors: Kosuke Fukuda, Mikio Nakashima, Kazuyoshi Shinohara, Hiroyuki Higashi
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Patent number: 10867805Abstract: An example embodiment of the present disclosure involves a method for semiconductor device fabrication. The method comprises providing a structure that includes a conductive component and an interlayer dielectric (ILD) that includes silicon and surrounds the conductive component, and forming, over the conductive component and the ILD, an etch stop layer (ESL) that includes metal oxide. The ESL includes a first portion in contact with the conductive component and a second portion in contact with the ILD. The method further comprises baking the ESL to transform the metal oxide located in the second portion of the ESL into metal silicon oxide, and selectively etching the ESL so as to remove the first portion of the ESL but not the second portion of the ESL.Type: GrantFiled: November 19, 2018Date of Patent: December 15, 2020Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chien-Hua Huang, Tzu-Hui Wei, Cherng-Shiaw Tsai
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Patent number: 10707098Abstract: A substrate processing apparatus includes a substrate holding device, a rotation mechanism, a drying liquid supply nozzle, a movement mechanism, a flow rate control mechanism, and a control device including circuitry which controls one or more of the rotation mechanism, movement mechanism and flow rate control mechanism such that the drying liquid forms a drying liquid flow line having distance (L) equal to or less than preset upper limit distance (M), where when a liquid contact point is position at which the drying liquid discharged from the nozzle reaches the substrate, the flow line is formed when the liquid contact point is moved from a center portion of the substrate toward a peripheral edge portion of the substrate, and the distance (L) of the flow line is measured from center of the liquid contact point to an edge of the flow line on a rotation center side of the substrate.Type: GrantFiled: March 15, 2017Date of Patent: July 7, 2020Assignee: TOKYO ELECTRON LIMITEDInventor: Hiroshi Marumoto
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Patent number: 10093571Abstract: A method of the present invention for producing glass sheets includes the steps of: (I) forming a molten glass raw material into a glass ribbon on a molten metal; and (II) bringing an acid gas that contains a fluorine element (F)-containing acid and in which a volume ratio of water vapor to the acid (a volume of the water vapor/a volume of the acid) is 0 or more and 30 or less, into contact with a surface of the glass ribbon on the molten metal so as to subject the surface of the glass ribbon to dealkalization and control a morphology of the surface in accordance with the volume ratio.Type: GrantFiled: April 9, 2014Date of Patent: October 9, 2018Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Satoshi Tanaka, Kiyomi Fukushima, Kazuishi Mitani, Yasuhiro Saito
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Patent number: 9947547Abstract: An environmentally green wet etch process for selective removal of cobalt metal generally includes applying water that is free of added buffers, acids, and/or bases to a substrate including exposed cobalt metal. The process can be utilized to form recesses where desired such as may be implemented for metal contact fill, metal gate fill, interconnect fill, or the like.Type: GrantFiled: June 29, 2016Date of Patent: April 17, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Frank W. Mont, Cornelius Brown Peethala, Shariq Siddiqui, Randolph F. Knarr
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Patent number: 9540736Abstract: Provided are methods for etching films comprising transition metals which help to minimize higher etch rates at the grain boundaries of polycrystalline materials. Certain methods pertain to amorphization of the polycrystalline material, other pertain to plasma treatments, and yet other pertain to the use of small doses of halide transfer agents in the etch process.Type: GrantFiled: July 8, 2015Date of Patent: January 10, 2017Assignee: Applied Materials, Inc.Inventors: Benjamin Schmiege, Nitin K. Ingle, Srinivas D. Nemani, Jeffrey W. Anthis, Xikun Wang, Jie Liu, David Benjaminson
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Patent number: 9243330Abstract: Atomic layer deposition apparatus for depositing a film in a continuous fashion. The apparatus includes a process tunnel, extending in a transport direction and bounded by at least a first and a second wall. The walls are mutually parallel and allow a flat substrate to be accommodated there between. The apparatus further includes a transport system for moving a train of substrates or a continuous substrate in tape form, through the tunnel. At least the first wall of the process tunnel is provided with a plurality of gas injection channels that, viewed in the transport direction, are connected successively to a first precursor gas source, a purge gas source, a second precursor gas source and a purge gas source respectively, so as to create a tunnel segment that—in use—comprises successive zones containing a first precursor gas, a purge gas, a second precursor gas and a purge gas, respectively.Type: GrantFiled: May 20, 2009Date of Patent: January 26, 2016Assignee: ASM INTERNATIONAL N.V.Inventors: Ernst H. A. Granneman, Sebastiaan E. van Nooten
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Patent number: 8999184Abstract: A method for forming via holes in an etch layer disposed below a patterned organic mask with a plurality of patterned via holes is provided. The patterned organic mask is treated by flowing a treatment gas comprising H2. A plasma is formed from the treatment gas. The patterned via holes are rounded to form patterned rounded via holes by exposing the patterned via holes to the plasma. The flow of the treatment gas is stopped. The plurality of patterned rounded via holes are transferred into the etch layer.Type: GrantFiled: August 3, 2012Date of Patent: April 7, 2015Assignee: Lam Research CorporationInventors: Ming-Shu Kuo, Siyi Li, Yifeng Zhou, Ratndeep Srivastava, Tae Won Kim, Gowri Kamarthy
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Patent number: 8999856Abstract: A method of selectively etching silicon nitride from a substrate comprising a silicon nitride layer and a silicon oxide layer includes flowing a fluorine-containing gas into a plasma generation region of a substrate processing chamber and applying energy to the fluorine-containing gas to generate a plasma in the plasma generation region. The plasma comprises fluorine radicals and fluorine ions. The method also includes filtering the plasma to provide a reactive gas having a higher concentration of fluorine radicals than fluorine ions and flowing the reactive gas into a gas reaction region of the substrate processing chamber. The method also includes exposing the substrate to the reactive gas in the gas reaction region of the substrate processing chamber. The reactive gas etches the silicon nitride layer at a higher etch rate than the reactive gas etches the silicon oxide layer.Type: GrantFiled: March 9, 2012Date of Patent: April 7, 2015Assignee: Applied Materials, Inc.Inventors: Jingchun Zhang, Anchuan Wang, Nitin Ingle
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Patent number: 8992791Abstract: A silicon wafer surface other than a defect is oxidized by ozone to form a silicon oxide film. A hydrofluoric acid is sprayed and subsequently a cleaning gas is sprayed onto the surface of the silicon wafer.Type: GrantFiled: September 30, 2009Date of Patent: March 31, 2015Assignee: Sumco Techxiv CorporationInventors: Kazuaki Kozasa, Tomonori Kawasaki, Takahisa Sugiman, Hironori Nishimura
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Patent number: 8975185Abstract: During formation of a charge trap separation in a semiconductor device, a polymer deposition is formed in a reactor using a first chemistry. In a following step, a second chemistry can be used to etch the polymer deposition in the reactor. The same or similar second chemistry can be used in a second etching step to expose a first oxide layer in each of the cells of the semiconductor device and to form a flat upper surface. This additional etch step can also be performed by the reactor, thereby reducing the number of machines required in the formation process.Type: GrantFiled: November 26, 2012Date of Patent: March 10, 2015Assignee: Spansion, LLCInventor: Angela Tai Hui
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Publication number: 20150027982Abstract: A method of forming an imaging blanket for a printing apparatus comprises preparing a support structure (e.g., mold) for receipt of a polymer blanket compound, introducing the polymer blanket compound in liquid state over the support structure, curing the polymer blanket compound to produce an imaging blanket, releasing the imaging blanket from the support structure, and etching a surface of the imaging blanket to form a texture pattern therein, the surface forming an imaging surface of said imaging blanket. An imaging surface providing desirable dampening fluid retention is provided. Wet etch, dry etch or a combination of both may be used. The polymer may be a silicone compound, may include 3 percent by weight granular material.Type: ApplicationFiled: July 29, 2013Publication date: January 29, 2015Applicants: Xerox Corporation, Palo Alto Research Center IncorporatedInventors: Timothy D. Stowe, Sourobh Raychaudhuri, Carolyn P. Moorlag, Michael Y. Young
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Patent number: 8894868Abstract: A method of forming an aperture (e.g., a through via, a blind via, a trench, an alignment feature, etc.) within a substrate includes irradiating a substrate with a laser beam to form a laser-machined feature having a sidewall. The laser-machined feature is then processed to change at least one characteristic (e.g., the sidewall surface roughness, diameter, taper, aspect ratio, cross-sectional profile, etc.) of the laser-machined feature. The laser-machined feature can be processed to form the aperture by performing an isotropic wet-etch process employing an etchant solution containing HNO3, HF and, optionally acetic acid.Type: GrantFiled: October 6, 2011Date of Patent: November 25, 2014Assignee: Electro Scientific Industries, Inc.Inventors: Andy Hooper, Daragh Finn, Tim Webb, Lynn Sheehan, Kenneth Pettigrew, Yu Chong Tai
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Patent number: 8889562Abstract: Disclosed is an improved double patterning method for forming openings (e.g., vias or trenches) or mesas on a substrate. This method avoids the wafer topography effects seen in prior art double patterning techniques by ensuring that the substrate itself is only subjected to a single etch process. Specifically, in the method, a first mask layer is formed on the substrate and processed such that it has a doped region and multiple undoped regions within the doped region. Then, either the undoped regions or the doped region can be selectively removed in order to form a mask pattern above the substrate. Once the mask pattern is formed, an etch process can be performed to transfer the mask pattern into the substrate. Depending upon whether the undoped regions are removed or the doped region is removed, the mask pattern will form openings (e.g., vias or trenches) or mesas, respectively, on the substrate.Type: GrantFiled: July 23, 2012Date of Patent: November 18, 2014Assignee: International Business Machines CorporationInventors: Kangguo Cheng, Bruce B. Doris, Ali Khakifirooz, Ying Zhang
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Patent number: 8877075Abstract: In accordance with an embodiment of the present invention, a method of polishing a device includes providing a layer having a non-uniform top surface. The non-uniform top surface includes a plurality of protrusions. The method further includes removing the plurality of protrusions by exposing the layer to a fluid that has gas bubbles and a liquid.Type: GrantFiled: February 1, 2012Date of Patent: November 4, 2014Assignee: Infineon Technologies AGInventor: Johann Kosub
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Patent number: 8871120Abstract: Some embodiments include methods of removing silicon dioxide in which the silicon dioxide is exposed to a mixture that includes activated hydrogen and at least one primary, secondary, tertiary or quaternary ammonium halide. The mixture may also include one or more of thallium, BX3 and PQ3, where X and Q are halides. Some embodiments include methods of selectively etching undoped silicon dioxide relative to doped silicon dioxide, in which thallium is incorporated into the doped silicon dioxide prior to the etching. Some embodiments include compositions of matter containing silicon dioxide doped with thallium to a concentration of from about 1 weight % to about 10 weight %.Type: GrantFiled: October 4, 2013Date of Patent: October 28, 2014Assignee: Micron Technology, Inc.Inventor: Nishant Sinha
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Patent number: 8821741Abstract: A preprocess step for supplying an inert gas into an enclosed space in which a substrate is disposed, while exhausting gas by sucking out of the enclosed space. And then, an etching step for supplying a process vapor into the enclosed space while exhausting gas out of the enclosed space at an rate lower than a rate in the preprocess step. And then a post-process step for supplying an inert gas into the enclosed space while exhausting gas by sucking out of the enclosed space at a rate higher than the rate in the etching step.Type: GrantFiled: November 28, 2012Date of Patent: September 2, 2014Assignee: Dainippon Screen Mfg. Co., Ltd.Inventors: Takashi Ota, Akio Hashizume, Takahiro Yamaguchi, Yuya Akanishi
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Publication number: 20140243224Abstract: Provided is an array including a solid support having a surface, the surface having a plurality of wells, the wells containing a gel material, the wells being separated from each other by interstitial regions on the surface, the interstitial regions segregating the gel material in each of the wells from the gel material in other wells of the plurality; and a library of target nucleic acids in the gel material, wherein the gel material in each of the wells comprises a single species of the target nucleic acids of the library. Methods for making and using the array are also provided.Type: ApplicationFiled: March 6, 2013Publication date: August 28, 2014Applicant: ILLUMINA, INC.Inventors: Steven M. Barnard, M. Shane Bowen, Maria Candelaria Rogert Bacigalupo, Wayne N. George, Andrew A. Brown, James Tsay
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Patent number: 8809194Abstract: A method for performing a spacer etch process is described. The method includes conformally applying a spacer material over a gate structure on a substrate, and performing a spacer etch process sequence to partially remove the spacer material from the gate structure and the substrate, while retaining a sidewall spacer positioned along a sidewall of the gate structure. The spacer etch process sequence may include depositing a SiOCl-containing layer on an exposed surface of the spacer material to form a spacer protection layer.Type: GrantFiled: March 7, 2012Date of Patent: August 19, 2014Assignee: Tokyo Electron LimitedInventors: Alok Ranjan, Kaushik Arun Kumar
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Patent number: 8741160Abstract: Disclosed are a method for manufacturing a solar cell by processing a surface of a silicon substrate for a solar cell, a solar cell manufactured by the method, and a substrate processing system for performing the method. The method for manufacturing a solar cell comprises protrusion forming step including wet-etching process and for forming a plurality of minute protrusions on a light receiving surface of a crystalline silicon substrate, and planarization step of planarizing the bottom surface, the opposite surface to the light receiving surface of the substrate during or after the protrusion forming step.Type: GrantFiled: December 20, 2010Date of Patent: June 3, 2014Assignee: Wonik IPS Co., Ltd.Inventor: Byung-Jun Kim
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Patent number: 8734662Abstract: A method for manufacturing a semiconductor device includes forming a patterned photoresist layer over a substrate, performing a plasma ashing process to the patterned photoresist layer, thereby removing a portion of the patterned photoresist layer, exposing the patterned photoresist layer to broadband ultraviolet radiation and ozone, thereby removing other portions of the patterned photoresist layer, and performing a cleaning of the patterned photoresist layer after exposing the patterned photoresist layer to broadband ultraviolet radiation and ozone.Type: GrantFiled: December 6, 2011Date of Patent: May 27, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yu-Rung Hsu, Sung Hsun Wu, Kuo Bin Huang
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Patent number: 8721901Abstract: Embodiments disclosed include methods of processing substrates, including methods of forming conductive connections to substrates. In one embodiment, a method of processing a substrate includes forming a material to be etched over a first material of a substrate. The material to be etched and the first material are of different compositions. The material to be etched is etched in a dry etch chamber to expose the first material. After the etching, the first material is contacted with a non-oxygen-containing gas in situ within the dry etch chamber effective to form a second material physically contacting onto the first material. The second material comprises a component of the first material and a component of the gas. In one embodiment, the first material is contacted with a gas that may or may not include oxygen in situ within the dry etch chamber effective to form a conductive second material.Type: GrantFiled: October 5, 2007Date of Patent: May 13, 2014Assignee: Micron Technology, Inc.Inventors: Nishant Sinha, Gurtej S. Sandhu
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Patent number: 8722540Abstract: A method includes bonding a wafer on a carrier through an adhesive, and performing a thinning process on the wafer. After the step of performing the thinning process, a portion of the adhesive not covered by the wafer is removed, while the portion of the adhesive covered by the wafer is not removed.Type: GrantFiled: July 22, 2010Date of Patent: May 13, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yu-Liang Lin, Weng-Jin Wu, Jing-Cheng Lin
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Patent number: 8685855Abstract: A tray for film formation by a CVD method includes a tray main body (2) and a supporting member (3) mounted on the tray main body (2) for supporting a silicon wafer (5). The supporting member (3) has a holding portion (3c), on which the silicon wafer (5) is directly placed. The holding portion (3c) has its lower surface (3d) apart from a surface (2a) of the tray main body that is opposed to and apart from the supported silicon wafer (5), whereby the thickness distribution of an oxide film formed on the silicon wafer can be made uniform. The tray has a structure for reducing a contact area between the supporting member (3) and the tray main body (2), with the holding portion (3c) having a tilted surface with its inner circumferential side closer to the tray main body surface (2a) that is opposed to the silicon wafer.Type: GrantFiled: November 29, 2010Date of Patent: April 1, 2014Assignee: Sumco CorporationInventors: Takashi Nakayama, Tomoyuki Kabasawa, Takayuki Kihara
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Publication number: 20140083210Abstract: A device for measuring force components formed from a single crystal material, wherein the device comprises at least one cantilever beam inclined to a wafer plane normal and formed in one piece with a mass body, which mass body provides a mass of inertia. The mass body has a first and a second major surface which are substantially parallel with a wafer plane. A mass body cross section presents a portion which is substantially symmetrical along a centrally (in the thickness direction) located plane parallel with the wafer plane. Disclosed is also a method for its production and an accelerometer comprising at least one such device. The device allow for a more compact 3-axis accelerometer.Type: ApplicationFiled: September 24, 2013Publication date: March 27, 2014Applicant: ACREO SWEDISH ICT ABInventors: Gert ANDERSSON, Milena ANGUELOVA, Nils HEDENSTIERNA, Alexandra NAFARI, David WESTBERG
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Patent number: 8663488Abstract: A method of processing a substrate through the use of an apparatus, including a substrate carrier for carrying a substrate; a liquid-applying unit for applying chemical to said substrate; and a gas-applying unit for applying gas atmosphere generated by vaporizing the liquid to said substrate. And the apparatus includes a plurality of process units, and the same process is applied to the substrate in each said process units.Type: GrantFiled: September 5, 2012Date of Patent: March 4, 2014Assignee: Gold Charm LimitedInventor: Shusaku Kido
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Publication number: 20140017447Abstract: An identification mark formation method for forming an identification mark on a refractory material single crystal substrate that is made of one selected from the group consisting of sapphire, gallium nitride, aluminum nitride, diamond, boron nitride, zinc oxide, gallium oxide, and titanium dioxide is disclosed. The method includes: (a) scanning a principal surface of the refractory material single crystal substrate with a laser beam at a first energy density such that a groove is formed in the principal surface of the refractory material single crystal substrate, thereby forming an identification mark in the principal surface of the refractory material single crystal substrate; and (b) scanning an inside of the groove of the refractory material single crystal substrate with a laser beam at a second energy density that is lower than the first energy density.Type: ApplicationFiled: July 9, 2013Publication date: January 16, 2014Inventor: Sadahiko KONDO
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Publication number: 20130344280Abstract: A device including a protecting material encapsulated metallic beam and a method of encapsulating the metallic beam using the protecting material layer are presented. The device includes a cantilever beam that includes at least about 90 Wt % of a metallic beam material, and 10 Wt % or less of a protecting material. The method of forming an encapsulated metallic beam includes the steps of depositing a first layer of protecting material over a substrate, depositing a second layer of protecting material over the first layer, depositing a metallic beam material over the second layer of protecting material, and encapsulating the beam material with a coating of the protecting material.Type: ApplicationFiled: June 26, 2012Publication date: December 26, 2013Applicant: GENERAL ELECTRIC COMPANYInventor: Oliver Charles Boomhower
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Patent number: 8613863Abstract: A method is disclosed for the selective etching of a multi-layer metal oxide stack comprising a platinum or tungsten layer on a TiN layer on an HfO2 or ZrO2 layer on a silicon substrate. In some embodiments, the method comprises a physical sputter process to selectively etch the platinum layer, followed by a first wet etch using a mixture of NH4OH and H2O2 to selectively etch the TiN layer, and a second wet etch using a dilute mixture of HF and HCl to selectively etch the HfO2 or ZrO2 layer.Type: GrantFiled: November 29, 2011Date of Patent: December 24, 2013Assignee: Intermolecular, Inc.Inventors: Jinhong Tong, Frederick Fulgenico, ShouQian Shao
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Patent number: 8580158Abstract: Some embodiments include methods of removing silicon dioxide in which the silicon dioxide is exposed to a mixture that includes activated hydrogen and at least one primary, secondary, tertiary or quaternary ammonium halide. The mixture may also include one or more of thallium, BX3 and PQ3, where X and Q are halides. Some embodiments include methods of selectively etching undoped silicon dioxide relative to doped silicon dioxide, in which thallium is incorporated into the doped silicon dioxide prior to the etching. Some embodiments include compositions of matter containing silicon dioxide doped with thallium to a concentration of from about 1 weight % to about 10 weight %.Type: GrantFiled: June 22, 2012Date of Patent: November 12, 2013Assignee: Micron Technology, Inc.Inventor: Nishant Sinha
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Patent number: 8530356Abstract: A method of removing a high molecular weight organic-comprising hard mask or BARC from a surface of a porous low k dielectric material, where a change in the dielectric constant of the low k dielectric material is less than about 5% after application of the method. The method comprises exposing the organic-comprising hard mask or BARC to nitric acid vapor which contains at least 68% by mass HNO3.Type: GrantFiled: October 7, 2011Date of Patent: September 10, 2013Assignee: Applied Materials, Inc.Inventors: Roman Gouk, Steven Verhaverbeke, Han-Wen Chen
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Patent number: 8524093Abstract: A method for forming a deep trench includes providing a substrate with a bottom layer and a top layer; performing a first etching process to etch the top layer, the bottom layer and the substrate so as to form a recess; selectively depositing a liner covering the top layer, the bottom layer and part of the substrate in the recess; using the liner as an etching mask to perform a second dry etching to etch the recess unmasked by the liner so as to form a deep trench; performing a selective wet etching to remove the top layer; and performing a post wet etching to enlarge the deep trench.Type: GrantFiled: December 11, 2007Date of Patent: September 3, 2013Assignee: Nanya Technology Corp.Inventor: Chung-Chiang Min
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Publication number: 20130196289Abstract: Two-part implant for attachment of artificial teeth comprising a base body having a bone contact surface and a soft tissue contact surface. Said soft tissue contact surface is at least partially hydroxylated or silanated which results in an improved soft tissue integration.Type: ApplicationFiled: January 31, 2013Publication date: August 1, 2013Applicant: Straumann Holding AGInventors: Frank Schwarz, Jurgen Becker, Marco Wieland, Michel Dard
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Patent number: 8486289Abstract: A method of fabricating a c-aperture or E-antenna plasmonic near field source for thermal assisted recording applications in hard disk drives is disclosed. A c-aperture or E-antenna is built for recording head applications. The technique employs e-beam lithography, partial reactive ion etching and metal refill to build the c-apertures. This process strategy has the advantage over other techniques in the self-alignment of the c-aperture notch to the c-aperture internal diameter, the small number of process steps required, and the precise and consistent shape of the c-aperture notch itself.Type: GrantFiled: November 29, 2011Date of Patent: July 16, 2013Assignee: HGST Netherlands B.V.Inventors: Hamid Balamane, Thomas Dudley Boone, Jordan Asher Katine, Barry Cushing Stipe
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Patent number: 8454844Abstract: A method for processing a wafer to form a plurality of hollow microneedles projecting from a substrate includes forming, by use of a dry etching process, a number of groups of recessed features, each including at least one slot deployed to form an open shape having an included area and at least one hole located within the included area. The internal surfaces of the holes and the slots are then coated with a protective layer. An anisotropic wet etching process is then performed in such a manner as to remove material from outside the included areas while leaving a projecting feature within each of the included areas. The protective layer is then removed to reveal the microneedles.Type: GrantFiled: December 2, 2010Date of Patent: June 4, 2013Assignee: NanoPass Technologies Ltd.Inventors: Yehoshua Yeshurun, Mier Hefetz, Meint De Boer, Erwin J W Berenschot, Hans Gardeniers
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Publication number: 20130089701Abstract: A method of forming an aperture (e.g., a through via, a blind via, a trench, an alignment feature, etc.) within a substrate includes irradiating a substrate with a laser beam to form a laser-machined feature having a sidewall. The laser-machined feature is then processed to change at least one characteristic (e.g., the sidewall surface roughness, diameter, taper, aspect ratio, cross-sectional profile, etc.) of the laser-machined feature. The laser-machined feature can be processed to form the aperture by performing an isotropic wet-etch process employing an etchant solution containing HNO3, HF and, optionally acetic acid.Type: ApplicationFiled: October 6, 2011Publication date: April 11, 2013Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventors: Andy Hooper, Daragh Finn, Tim Webb, Lynn Sheehan, Kenneth Pettigrew, Yu Chong Tai
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Patent number: 8414708Abstract: Provided is a method and apparatus for cleaning a photomask. The photomask including a first region and a second region surrounding the first region, a pattern to be protected disposed on the first region, and a material to be removed exists on the second region. A cleaning liquid is sprayed from an inside region of the second region toward an outer region of the second region to remove the material, and a gas is blown from the first region toward the second region to protect the pattern.Type: GrantFiled: July 29, 2010Date of Patent: April 9, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Yun-song Jeong, Hyung-ho Ko, Sung-jae Han, Kyung-noh Kim, Chan-uk Jeon
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Patent number: 8394280Abstract: Methods of patterning a material are disclosed. A first resist pattern is formed on a field. A protective layer is formed over the first resist pattern and at least a portion of the field. A second resist pattern is formed over a portion of the protective layer. A portion of a material to be patterned deposited adjacent to the first and second resist patterns is removed.Type: GrantFiled: November 6, 2009Date of Patent: March 12, 2013Assignee: Western Digital (Fremont), LLCInventors: Dujiang Wan, Hai Sun, Hongping Yuan, Ling Wang, Xianzhong Zeng
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Patent number: 8377321Abstract: A method of forming a nozzle and an ink chamber of an ink jet device, includes forming a nozzle passage by subjecting a substrate to a directional first etch process from one side of the substrate; applying a second etch process from the same side of the substrate for widening an internal part of the nozzle passage, to form a cavity forming at least a portion of the ink chamber adjacent to the nozzle; and controlling the shape of the cavity by providing, on the opposite side of the substrate, an etch accelerating layer buried under an etch stop layer and by allowing the second etch process to proceed into the etch accelerating layer. The following steps precede the first etch process: forming an annular trench in the substrate on the side of the substrate where the nozzle is to be formed; and passivating the walls of the trench so as to become resistant against the second etch process. The material surrounded by the trench is removed in the first etch process.Type: GrantFiled: December 2, 2010Date of Patent: February 19, 2013Assignee: Oce Technologies B.V.Inventors: Henricus Johannes Adrianus Van De Sande, Willem Maurits Hijmans, Gerardus Johannes Burger, Dionysius Antionius Petrus Oudejans
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Patent number: 8377322Abstract: To provide a pattern forming method including: providing an active species supply source to at least one of a mold structure having a plurality of concave portions in its surface, and an object to be patterned; pressing the side of the mold structure, where the concave portions are provided, against the object so as to encapsulate the active species supply source in the concave portions; and oxidatively decomposing parts of the object which are in positions corresponding to the concave portions, by irradiating the active species supply source with excitation light through one of the mold structure and the object.Type: GrantFiled: June 16, 2009Date of Patent: February 19, 2013Assignee: Fujifilm CorporationInventor: Satoshi Wakamatsu
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Patent number: 8366947Abstract: In a method for transferring nanostructures into a substrate, the following order of steps is used: decorating a substrate with nanomaterials (13), etching the substrate (10), applying a coating (15), removing the nanomaterials (13), and etching the substrate (10).Type: GrantFiled: February 14, 2011Date of Patent: February 5, 2013Assignee: NMI Naturwissenschaftliches und Medizinisches Institut an der Universitaet TuebingenInventor: Claus Burkhardt
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Patent number: 8361338Abstract: The embodiments of methods described in this disclosure for removing a hard mask layer(s) over a polysilicon layer of a gate stack after the gate stack is etched allows the complete removal of the hard mask layer without the assistance of photolithography. A dielectric material is deposited over the substrate with the gate stacks. The topography of the substrate is removed by chemical mechanical polishing first. Afterwards, an etching gas (or vapor) is used to etch a portion of the remaining dielectric layer and the hard mask layer. The etching gas forms an etch byproduct that deposits on the substrate surface and can be subsequently removed by heating. The etching and heating to remove etch byproduct are repeated until the hard mask layer is completed removed. Afterwards, the remaining dielectric layer is removed by wet etch. The methods described are simpler and cheaper to use than conventional methods for hard mask removal.Type: GrantFiled: February 11, 2010Date of Patent: January 29, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventor: Shiang-Bau Wang
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Patent number: 8361332Abstract: A method of fabricating micro-lenses is provided. A first layer is formed on a substrate. The first layer is comprised of a first material and the substrate is comprised of a second material. An opening is formed in the first layer and an etchant is provided in the opening to etch both the substrate and the first layer to form a first mold for a first micro-lens. The etchant etches the first layer at a different rate than the substrate. A lens material is added to the etched molds to form micro-lenses.Type: GrantFiled: July 13, 2009Date of Patent: January 29, 2013Assignee: Micron Technology, Inc.Inventor: Jin Li
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Publication number: 20130020284Abstract: Nozzle arms for holding discharge heads are caused by a pivotal driving part to move between a processing position above a substrate and a standby position outside a processing cup surrounding a substrate. When the nozzle arms having cleaned a substrate is placed at the standby position, a cleaning solution is ejected from a shower nozzle toward the nozzle arms arranged obliquely downward of the shower nozzle. The three nozzle arms are caused to move up and down such that the nozzle arms cut across a jet of a cleaning solution discharged obliquely downward, thereby cleaning the three nozzle arms in order. Then, a nitrogen gas is ejected from a drying gas nozzle and sprayed on the nozzle arms to remove the cleaning solution attached to the nozzle arms, thereby drying the nozzle arms.Type: ApplicationFiled: July 2, 2012Publication date: January 24, 2013Inventors: Naoyuki OSADA, Kentaro SUGIMOTO
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Patent number: 8343370Abstract: A method of fabricating a PTFE seal element and rotary shaft seal assembly therewith. The method includes providing a PTFE seal element and a vacuum chamber having electrodes therein. Next, placing the PTFE seal element on one electrode and drawing a vacuum pressure in the chamber and introducing a first process gas into the chamber. Further, applying a high frequency signal to the electrodes and producing a discharge plasma and etching and chemically modifying a surface of the PTFE seal element with the discharge plasma. Then, purging the vacuum chamber with a second process gas and restoring the vacuum chamber to an atmospheric pressure. Thereafter, rinsing the seal element and applying an adhesion promoter to the etched and chemically modified surface. Lastly, attaching the etched and chemically modified surface of the PTFE seal element to the carrier by molding an elastomeric material between the seal element and the carrier.Type: GrantFiled: February 19, 2009Date of Patent: January 1, 2013Assignee: Federal-Mogul CorporationInventors: Richard E. Dewald, Bhawani S. Tripathy
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Patent number: 8343367Abstract: Disclosed is a method of forming a continuous channel for gas discharge in the surface of a casting roll for twin roll strip casting, and particularly, a method of forming a continuous channel for gas discharge on the surface of a casting roll for twin roll strip casting, suitable for the formation of dimples on the surface of a casting roll for a twin roll strip caster, which includes applying a photoresist on the entire surface of a casting roll, conducting patterning on the applied photoresist, developing the surface of the casting roll, subjected to the patterning, and etching the metal surface of the casting roll, exposed in the developing, and which prevents the generation of dents, enables the manufacture of a cast product having no defects, and realizes wide applicability not only to high Mn steel but also to types of casting steel capable of generating dents or similar defects due to a large amount of volatile gas.Type: GrantFiled: July 26, 2007Date of Patent: January 1, 2013Assignee: POSCOInventors: Ju-Tae Choi, Man-Jin Ha, Hee-Kyung Moon
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Publication number: 20120325776Abstract: The apparatus for processing a substrate includes a substrate carrier for carrying a substrate, a chemical-applying unit for applying chemical to the substrate, and a gas-applying unit for applying gas atmosphere to the substrate.Type: ApplicationFiled: September 5, 2012Publication date: December 27, 2012Applicant: NEC LCD TECHNOLOGIES, LTD.Inventor: Shusaku KIDO
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Patent number: 8329590Abstract: Apparatus and methods for shielding a feature projecting from a first area on a substrate to a plasma while simultaneously removing extraneous material from a different area on the substrate with the plasma. The apparatus includes at least one concavity positioned and dimensioned to receive the feature such that the feature is shielded from the plasma. The apparatus further includes a window through which the plasma removes the extraneous material. The method generally includes removing the extraneous material while shielding the feature against plasma exposure.Type: GrantFiled: November 9, 2009Date of Patent: December 11, 2012Assignee: Nordson CorporationInventors: Robert S. Condrashoff, James D. Getty, James S. Tyler