Patents Assigned to Tokyo Electron Limited
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Patent number: 7767386Abstract: A method of patterning a thin film is described. The method comprises forming a thin film to be patterned on a substrate, forming a developable organic planarization layer (OPL) on the thin film, forming a developable anti-reflective coating (ARC) layer on the developable OPL, and forming a mask layer on the developable ARC layer. Thereafter, the mask layer, the developable ARC layer and the developable OPL are patterned to form a pattern therein using an imaging and developing process. The imaging and developing process may either partially extend or fully extend into the OPL. Once the mask layer is removed, the pattern is transferred to the underlying thin film using an etching process.Type: GrantFiled: January 15, 2007Date of Patent: August 3, 2010Assignee: Tokyo Electron LimitedInventor: Shannon W. Dunn
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Patent number: 7769279Abstract: A processing gas is prevented from entering into a space below a placement table. A supporting surface 62 for supporting the lower face of a placement table 58 is provided at an inner circumferential portion of the upper end of a support 56. A circumferentially extending purge gas groove 64 is formed outside the supporting surface 62, in an intermediate circumferential portion of the upper end of the support 56. A narrow flow path 68 is provided outside the purge gas groove 64, at a position corresponding to an outer circumferential portion of the upper end of the support 56. A purge gas fed from purge gas-feeding means 66 into the purge gas groove diffuses in the circumferential direction in the purge gas groove 64 and flows out to the outside from the narrow flow path 68. Such a flow of the purge gas prevents a processing gas from entering into the purge gas groove 64 and a space S1 below the placement table.Type: GrantFiled: July 3, 2007Date of Patent: August 3, 2010Assignee: Tokyo Electron LimitedInventors: Sumi Tanaka, Takayuki Kamaishi, Kouki Suzuki
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Patent number: 7769617Abstract: A worker management system, which includes a plant 100 divided into a plurality of work areas each in correspondence to specific task contents, a database 220 having stored therein task identification information correlating each work area 112 with contents of tasks performed therein and worker detection sensors 130 installed in each work area, identifies the specific work area where a worker is currently located based upon outputs from the worker detection means and then identifies the task currently performed by the worker based upon the task identification information. Based upon the current task thus identified, a decision is made as to whether the worker should continue the current task or be assigned a new task and an instruction for task execution is issued to the worker. Therefore the identification of current tasks, the assignment of a new task and the task reassignment are facilitated to improve the work efficiency.Type: GrantFiled: April 29, 2005Date of Patent: August 3, 2010Assignee: Tokyo Electron LimitedInventors: Kenya Iwasaki, Hiroshi Nishikawa
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Patent number: 7767055Abstract: A capacitive coupling plasma processing apparatus includes a process chamber configured to have a vacuum atmosphere, and a process gas supply section configured to supply a process gas into the chamber. In the chamber, a first electrode and a second electrode are disposed opposite each other. An RF power supply is disposed to supply an RF power to the first or second electrode to form an RF electric field within a plasma generation region between the first and second electrodes, so as to turn the process gas into plasma. The target substrate is supported by a support member between the first and second electrodes such that a process target surface thereof faces the second electrode. A conductive functional surface is disposed in a surrounding region around the plasma generation region and grounded to be coupled with the plasma in a sense of DC to expand the plasma.Type: GrantFiled: December 2, 2005Date of Patent: August 3, 2010Assignees: Tokyo Electron Limited, Kabushiki Kaisha ToshibaInventors: Shinji Himori, Noriaki Imai, Katsumi Horiguchi, Takaaki Nezu, Shoichiro Matsuyama, Hiroki Matsumaru, Toshihiro Hayami, Kazuya Nagaseki, Itsuko Sakai, Tokuhisa Ohiwa, Yoshikazu Sugiyasu
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Publication number: 20100189927Abstract: A method for using a film formation apparatus includes performing a main cleaning process and a post cleaning process in this order inside a reaction chamber. The main cleaning process is arranged to supply a cleaning gas containing fluorine into the reaction chamber while exhausting gas from inside the reaction chamber, thereby etching a film formation by-product containing silicon. The post cleaning process is arranged to remove a silicon-containing fluoride generated by the main cleaning process and remaining inside the reaction chamber and to alternately repeat, a plurality of times, supplying an oxidizing gas into the reaction chamber to transform the silicon-containing fluoride into an intermediate product by oxidization, and supplying hydrogen fluoride gas into the reaction chamber while exhausting gas from inside the reaction chamber to remove the intermediate product by a reaction between the hydrogen fluoride gas and the intermediate product.Type: ApplicationFiled: January 8, 2010Publication date: July 29, 2010Applicant: TOKYO ELECTRON LIMITEDInventors: Jun SATO, Kiyotaka Kikuchi, Hiroki Murakami, Shigeru Nakajima, Kazuhide Hasebe
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Publication number: 20100186673Abstract: A vaporizer having a simple structure with improved thermal efficiency is provided. A vaporizer includes a nozzle unit for jetting a liquid material in a mist state, a vaporizing unit having vaporizing paths which vaporize the material mist and form a material gas, and an ejection unit for sending the material gas to the subsequent stage. The vaporizing unit includes a vaporizing unit main body having the vaporizing paths, a main body container containing the vaporizing unit main body, a heater for heating the material mist passing through the vaporizing paths, and connecting members arranged on both end sections of the main body container. The vaporizing unit main body and the main body container are formed of a material having thermal conductivity higher than that of the material of the connecting members. The end sections of the main body container and the connecting members are bonded by explosion bonding.Type: ApplicationFiled: February 23, 2010Publication date: July 29, 2010Applicant: TOKYO ELECTRON LIMITEDInventors: Sumi TANAKA, Tomohito KOMATSU, Munehisa FUTAMURA
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Publication number: 20100190350Abstract: A plasma etching method for forming a hole in an etching target film by a plasma processing apparatus is provided. The apparatus includes an RF power supply for applying RF power for plasma generation to at least one of upper and lower electrodes, and a DC power supply for applying minus DC voltage to the upper electrode. A first condition that plasma is generated by turning on the RF power supply and minus DC voltage is applied to the upper electrode and a second condition that the plasma is extinguished by turning off the RF power supply and minus DC voltage is applied to the upper electrode are alternately repeated. Etching is performed by positive ions in the plasma under the first condition and negative ions are supplied into the hole by the DC voltage to neutralize positive ions in the hole under the second condition.Type: ApplicationFiled: January 25, 2010Publication date: July 29, 2010Applicant: TOKYO ELECTRON LIMITEDInventors: Koichi YATSUDA, Yoshinobu Ooya, Shin Okamoto, Hiromasa Mochiki
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Publication number: 20100191362Abstract: A coating and developing apparatus includes: a delivery mounting unit on which a carrier housing a plurality of substrates is to be mounted and the carrier being accessed by a delivery mechanism; a plurality of retreat mounting units on which the carriers are to be mounted; a carrier carry mechanism moving and mounting the carriers between the retreat mounting units and the delivery mounting unit; a collection schedule creating function determining a collection order for collecting the substrates placed in modules into original carriers in which the substrates were housed, when a trouble occurs; and a carry control unit controlling to carry the substrates to the carriers in which the substrates were housed according to the determined collection order.Type: ApplicationFiled: December 29, 2009Publication date: July 29, 2010Applicant: Tokyo Electron LimitedInventor: Wataru Tsukinoki
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Publication number: 20100186898Abstract: A vertical plasma processing apparatus for performing a plasma process on a plurality of target objects together at a time includes an activation mechanism configured to turn a process gas into plasma. The activation mechanism includes a vertically elongated plasma generation box attached to a process container at a position corresponding to a process field and confining a plasma generation area airtightly communicating with the process field, an ICP electrode disposed outside the plasma generation box and extending in a longitudinal direction of the plasma generation box, and an RF power supply connected to the ICP electrode. The ICP electrode includes a separated portion separated from a wall surface of the plasma generation box by a predetermined distance.Type: ApplicationFiled: January 12, 2010Publication date: July 29, 2010Applicant: TOKYO ELECTRON LIMITEDInventors: Kohei FUKUSHIMA, Toshiki Takahashi, Hiroyuki Matsuura, Yutaka Motoyama, Kazuya Yamamoto
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VERTICAL HEAT PROCESSING APPARATUS AND COMPONENT FOR SAME, FOR FORMING HIGH DIELECTRIC CONSTANT FILM
Publication number: 20100186667Abstract: A vertical heat processing apparatus for forming a high dielectric constant film of a metal oxide by deposition includes a reaction container configured to accommodate a plurality of target substrates at intervals in a vertical direction; a support member configured to support the target substrates inside the reaction container; a heater configured to heat the target substrates inside the reaction container; an exhaust system configured to exhaust gas from inside the reaction container; and a gas supply system configured to supply a metal source gas and an oxidizing gas into the reaction container, wherein the gas supply system includes a gas nozzle disposed inside the reaction container, and the gas nozzle is made of a metal consisting mainly of titanium.Type: ApplicationFiled: January 8, 2010Publication date: July 29, 2010Applicant: TOKYO ELECTRON LIMITEDInventors: Katsutoshi ISHII, Yoshihiro Ishida, Katsushige Harada, Haruhiko Furuya -
Patent number: 7765234Abstract: To manage data flow in generating different signal formats for use in optical metrology, a project data object is created. A first option data object is created. The first option data object has a set of signal parameters. Different settings of the set of signal parameters correspond to different signal formats for diffraction signals. A version number is associated with the first option data object. The first option data object is linked with the project data object. At least a second option data object is created. The second option data object has a set of signal parameters. Different settings of the set of signal parameters correspond to different signal formats for diffraction signals. The set of signal parameters of the first option data object and the set of signal parameters of the second option data object are set differently. Another version number is associated with the second option data object. The second option data object is linked with the project data object.Type: GrantFiled: October 12, 2006Date of Patent: July 27, 2010Assignee: Tokyo Electron LimitedInventors: Hong Qiu, Junwei Bao, Wei Liu, Jeffrey Alexander Chard, Miao Liu, Gang He, Hemalatha Erva, Vi Vuong
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Patent number: 7765076Abstract: In allocating processing units, first and second requests for jobs are obtained. First and second numbers of processing units requested are determined. First and second numbers of available processing units are determined. When the first number of available processing units is non-zero, the first number of available number of processing units or the first number of processing units requested is assigned to a first processing cluster. A first processing unit in the first processing cluster is designated as a master node. When the second number of available processing units is non-zero, the second number of available number of processing units or the second number of processing units requested is assigned to a second processing cluster. The first processing unit in the second processing cluster is designated as a slave node. The first and second jobs are assigned to the first and second processing clusters, respectively.Type: GrantFiled: September 22, 2006Date of Patent: July 27, 2010Assignee: Tokyo Electron LimitedInventors: Hemalatha Erva, Hong Qiu, Junwei Bao, Vi Vuong
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Patent number: 7763311Abstract: A method for depositing a thin film on a substrate in a vapor deposition system is described. Prior to the deposition process, the substrate is provided within the vapor deposition system and coupled to an upper surface of a substrate holder within the vapor deposition system, whereby the substrate is heated to a deposition temperature in a first gaseous atmosphere. Thereafter, the first gaseous atmosphere is displaced by a second gaseous atmosphere, and the pressure is adjusted to a deposition pressure. The second gaseous atmosphere comprises a gaseous composition that is substantially the same as the carrier gas utilized to transport film precursor vapor to the substrate and the optional dilution gas utilized to dilute the carrier gas and film precursor vapor.Type: GrantFiled: March 28, 2007Date of Patent: July 27, 2010Assignee: Tokyo Electron LimitedInventor: Kenji Suzuki
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Patent number: 7762809Abstract: Disclosed is a heat treatment apparatus which includes a processing vessel having a furnace throat at its bottom and adapted to accommodate process objects therein to perform a heat treatment to the process objects under reduced pressure, the processing vessel having a vessel main body made of quartz, a metallic lid adapted to support thereon a holder for holding a plurality of process objects so as to load and unload the holder into and from the processing vessel and to close and open the furnace throat, and an annular sealing member disposed on the lid to seal a gap between the lid and the furnace throat. A contact-preventing member is disposed between the lid and the furnace throat to prevent contact of the lid with the furnace throat due to squashing of the sealing member that would otherwise occur when an internal pressure of the processing vessel is reduced.Type: GrantFiled: October 12, 2007Date of Patent: July 27, 2010Assignee: Tokyo Electron LimitedInventors: Kiichi Takahashi, Yuichiro Sase, Izumi Sato, Kiyohiko Takahashi
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Patent number: 7765077Abstract: The invention can provide a method of processing a substrate using Spacer-Optimization (S-O) processing sequences and evaluation libraries that can include one or more optimized spacer creation and evaluation procedures. In addition, the S-O processing sequences can include one or more deposition procedures, one or more partial-etch procedures, one or more chemical oxide removal (COR)-etch procedures, one or more optimization procedures, one or more evaluation procedures, and/or one or more verification procedures.Type: GrantFiled: September 21, 2007Date of Patent: July 27, 2010Assignee: Tokyo Electron LimitedInventors: Asao Yamashita, Merritt Funk, Daniel J. Prager, Lee Chen, Radha Sundaranajan
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Patent number: 7762425Abstract: A lid apparatus for opening/closing an opening of a main body includes a lid with working and back faces. An arm attaches the lid to the main body to be operable for opening/closing. The arm includes a first axis pivotally supporting the arm on the main body around the opening, and a second axis swingably supporting the back face of the lid on the arm. The second axis is located between the gravity center of the lid and the first axis. A regulatory member intervenes between the arm and the back face of the lid to set the working face of the lid in parallel with the opening.Type: GrantFiled: December 16, 2003Date of Patent: July 27, 2010Assignees: Tokyo Electron Limited, NHK Spring Co., Ltd.Inventors: Toru Kimura, Hiroshi Narushima, Tsutomu Hiroki
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Patent number: 7763404Abstract: The present invention provides methods and system for improving the accuracy of measurements made using optical metrology. The present invention relates to methods and systems for changing the optical properties of tunable resists that can be used in the production of electronic devices such as integrated circuits. Further, the invention provides methods and systems for using a modifiable resist layer that provides a first set of optical properties before exposure and a second set of optical properties after exposure.Type: GrantFiled: September 26, 2006Date of Patent: July 27, 2010Assignee: Tokyo Electron LimitedInventors: James E. Willis, Manuel Perez, Asao Yamashita
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Patent number: 7763551Abstract: Film thickness uniformity and stoichiometry are controlled and deposition rate is increased in the chemical vapor deposition (CVD) of silicon nitride from complex gas mixtures in microwave plasmas. In Si2H6+NH3+Ar gas mixtures using a radial line slot antenna (RLSA) microwave plasma to deposit SiN by CVD, deposition rate and film uniformity are improved by limiting the amounts of atomic or molecular hydrogen from the gas mixture during the deposition process. A halogen, for example, fluorine, is added to a gas mixture of silane or disilane, ammonia and argon. The halogen scavenges hydrogen from the mixture, and prevents the hydrogen from blocking the nitrogen and silicon atoms and their fragments from bonding to the surface atoms and to grow stoichiometric silicon nitride. Adding the halogen generates free halogen radicals that react with hydrogen to create hydrogen halide, for example, HF or HCl, thereby scavenging the hydrogen.Type: GrantFiled: March 31, 2008Date of Patent: July 27, 2010Assignee: Tokyo Electron LimitedInventors: Jozef Brcka, Song Yun Kang, Toshio Nakanishi, Peter L. G. Ventzek, Minoru Honda, Masayuki Kohno
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Publication number: 20100181290Abstract: Disclosed is a substrate processing apparatus to improve the etching uniformity when a back surface of a substrate is etched with a high-temperature chemical liquid. The chemical-liquid processing apparatus removes a film formed on a substrate by etching with a high-temperature chemical liquid. The apparatus includes a substrate holding mechanism to hold the substrate horizontally in a state where a back surface of the substrate faces downward, a rotating mechanism to rotate the substrate holding mechanism by a hollow rotating shaft extending vertically, a chemical-liquid discharge nozzle to supply the high-temperature chemical liquid to the back surface of the substrate by discharging the high-temperature chemical liquid upwardly, and a chemical-liquid supply mechanism to supply the chemical liquid to the chemical-liquid discharge nozzle.Type: ApplicationFiled: January 21, 2010Publication date: July 22, 2010Applicant: TOKYO ELECTRON LIMITEDInventors: Hiromitsu NAMBA, Jiro HIGASHIJIMA
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Publication number: 20100180918Abstract: In a process chamber of a substrate processing apparatus, such as an RTP apparatus, a carrier is placed and configured to carry out a contaminant that has been attached to it. In this state, a cleaning gas containing N2 and O2 is introduced into the process chamber, and cleaning is performed under conditions including a pressure of 133.3 Pa or less and a temperature of 700° C. to 1,100° C. This cleaning is repeatedly performed by sequentially replacing a plurality of carriers.Type: ApplicationFiled: February 12, 2010Publication date: July 22, 2010Applicant: TOKYO ELECTRON LIMITEDInventor: Koji MAEKAWA