Patents by Inventor Kazue Takahashi

Kazue Takahashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20020081174
    Abstract: The vacuum processing apparatus has an atmospheric loader having a plurality of cassette tables and a transport unit for carrying wafers, a vacuum loader equipped with vacuum wafer-processing chambers and a vacuum transport chamber communicating with the processing chambers via gate valves, and a locking unit provided with a loading lock chamber and unloading lock chambers that have gate valves for connecting the atmospheric transport unit and vacuum transport chamber; wherein two etching chambers, formed by UHF-ECR reactors, are arranged symmetrically with respect to an axial line passing through the middle of the vacuum transport chamber and locking unit, only at the opposite side of the locking unit across the vacuum transport chamber, and at an acute angle with respect to the vacuum transport chamber, and UHF-ECR antennas, almost parallel to the foregoing axial line, are opened at the opposite side to that of the vacuum transport chamber.
    Type: Application
    Filed: March 4, 2002
    Publication date: June 27, 2002
    Inventors: Hironobu Kawahara, Mitsuru Suehiro, Kazue Takahashi, Hideyuki Yamamoto, Katsuya Watanabe
  • Publication number: 20020081175
    Abstract: The vacuum processing apparatus has an atmospheric loader having a plurality of cassette tables and a transport unit for carrying wafers, a vacuum loader equipped with vacuum wafer-processing chambers and a vacuum transport chamber communicating with the processing chambers via gate valves, and a locking unit provided with a loading lock chamber and unloading lock chambers that have gate valves for connecting the atmospheric transport unit and vacuum transport chamber; wherein two etching chambers, formed by UHF-ECR reactors, are arranged symmetrically with respect to an axial line passing through the middle of the vacuum transport chamber and locking unit, only at the opposite side of the locking unit across the vacuum transport chamber, and at an acute angle with respect to the vacuum transport chamber, and UHF-ECR antennas, almost parallel to the foregoing axial line, are opened at the opposite side to that of the vacuum transport chamber.
    Type: Application
    Filed: March 4, 2002
    Publication date: June 27, 2002
    Inventors: Hironobu Kawahara, Mitsuru Suehiro, Kazue Takahashi, Hideyuki Yamamoto, Katsuya Watanabe
  • Publication number: 20020046706
    Abstract: A method and system of holding a substrate where foreign substances on the back surface can be decreased. The substrate holding system comprises a ring-shaped leakage-proof surface having a smooth surface on the specimen table corresponding to the periphery of the substrate, a plurality of contact holding portions within the periphery of the substrate, and electrostatic attraction means for fixing the substrate by contacting the back surface of the substrate to the ring-shaped leakage-proof surface and the contact holding portions. The substrate contacts to the cooling surface at the ring-shaped leakage-proof surface and the contact holding portion placed on a position inside the ring-shaped leakage-proof surface. The back surface of the substrate and the cooling surface do not contact to each other in the large portion of the remaining area.
    Type: Application
    Filed: December 21, 2001
    Publication date: April 25, 2002
    Inventors: Naoyuki Tamura, Kazue Takahashi, Youichi Ito, Yoshifumi Ogawa, Hiroyuki Shichida, Tsunehiko Tsubone
  • Publication number: 20020043338
    Abstract: A plasma etching apparatus for etching of a sample having an etching chamber having a sidewall, an exchangeable jacket which is held inside of the sidewall and a heating mechanism provided proximate to a top end of the exchangeable jacket for generating heat which radiates toward an interior of the etching chamber, the sample being disposed in the etching chamber. An evacuation system which evacuates the etching chamber, an etching gas supply which supplies an etching gas into the chamber and a plasma generator which generates a plasma for performing etching of the sample in the etching chamber.
    Type: Application
    Filed: October 26, 2001
    Publication date: April 18, 2002
    Inventors: Toshio Masuda, Kazue Takahashi, Mitsuru Suehiro, Tetsunori Kaji, Saburo Kanai
  • Publication number: 20020042206
    Abstract: A plasma etching method for etching a sample within an etching chamber having a sidewall, an exchangeable jacket which is held inside of the sidewall, and a heating mechanism proximate to top end of the exchangeable jacket for generating heat which radiates towards an inside of the etching chamber. The plasma etching method further including a step of evacuating the etching chamber by an evacuation system, a step of supplying an etching gas into the etching chamber, a step of generating a plasma for performing etching of the sample in the etching chamber, and a step of conducting a heating operation by the heating mechanism during an initial stage of the step of generating a plasma.
    Type: Application
    Filed: October 26, 2001
    Publication date: April 11, 2002
    Inventors: Toshio Masuda, Kazue Takahashi, Mitsuru Suehiro, Tetsunori Kaji, Saburo Kanai
  • Publication number: 20020040766
    Abstract: In an oxide film etching, a plasma having a suitable ratio CF3, CF2, CF, F is necessary and there is a problem in which in accordance with a temperature fluctuation of an etching chamber an etching characteristic is fluctuated. Using UHF type ECR plasma etching apparatus having a low electron temperature, a suitable dissociation can be obtained, and forming a temperature adjustment range of a side wall at from 10° C. and 120° C. a stable etching characteristic can be obtained. Since the oxide film etching using the low electron temperature and high density plasma can be obtained, an etching result having a superior characteristic can be obtained, and also since a side wall temperature adjustment range is low, an apparatus structure and a heat resistant performance countermeasure can be performed easily.
    Type: Application
    Filed: October 8, 1999
    Publication date: April 11, 2002
    Inventors: KAZUE TAKAHASHI, TOSHIO MASUDA, TETSUNORI KAJI, KEN?apos;ETSU YOKOGAWA
  • Publication number: 20020035447
    Abstract: A remote diagnosing system for semiconductor manufacturing equipment which diagnoses user's semiconductor manufacturing equipment connected to a piece of diagnostic equipment which is provided by a third party through a communication network. The diagnostic equipment having at least one diagnostic program which diagnoses said semiconductor manufacturing equipment and a control section which starts the diagnostic program when accessed by a specific user terminal given an access right, and the terminal sends data which is requested by the diagnostic equipment for diagnosis and receives a result of diagnosis from the diagnostic equipment.
    Type: Application
    Filed: February 26, 2001
    Publication date: March 21, 2002
    Inventors: Kazue Takahashi, Nobuo Tsumaki, Hideyuki Yamamoto
  • Publication number: 20020023716
    Abstract: A plasma processing apparatus processes high-speed semiconductor circuits by using plasma with an increased yield. The plasma processing apparatus has a vacuum vessel including an exhaust device, a starting material gas supplying device, an electrode for installing a workpiece (wafer) and a device for applying radio frequency power to the wafer. This apparatus converts the starting material gas to plasma inside the vacuum vessel and plasma-processes a wafer surface, wherein an insulating film is interposed between the electrode for installing the wafer and the wafer and has a conductive material at a part thereof, and the conductive material is electrically grounded through an impedance regulating circuit.
    Type: Application
    Filed: July 20, 2001
    Publication date: February 28, 2002
    Inventors: Yutaka Ohmoto, Hironobu Kawahara, Ken Yoshioka, Kazue Takahashi, Saburou Kanai
  • Publication number: 20020025686
    Abstract: A plasma processing apparatus processes high-speed semiconductor circuits by using plasma with an increased yield. The plasma processing apparatus has a vacuum vessel including an exhaust device, a starting material gas supplying device, an electrode for installing a workpiece (wafer) and a device for applying radio frequency power to the wafer. This apparatus converts the starting material gas to plasma inside the vacuum vessel and plasma-processes a wafer surface, wherein an insulating film is interposed between the electrode for installing the wafer and the wafer and has a conductive material at a part thereof, and the conductive material is electrically grounded through an impedance regulating circuit.
    Type: Application
    Filed: March 5, 2001
    Publication date: February 28, 2002
    Inventors: Yutaka Ohmoto, Hironobu Kawahara, Ken Yoshioka, Kazue Takahashi, Saburou Kanai
  • Publication number: 20020005252
    Abstract: A plasma processing apparatus includes a vacuum vessel as evacuated by an evacuation system, a gas supply for supplying a processing gas into the vacuum vessel, an electrostatic chucking device for holding thereon a sample to be processed within the vacuum vessel, a lower electrode, a bias power source connected to the lower electrode for supplying bias power, and a radiator for radiating a high frequency electromagnetic wave within the vacuum vessel. The processing gas is made plasmatic and plasma is generated for use in performing processing of the sample to be processed. The radiator for radiating a high frequency electromagnetic wave including an antenna which is provided within the vacuum vessel. The antenna includes a conductor opposing the lower electrode and being connected to a high frequency bias power supply and a plate contacted with the conductor.
    Type: Application
    Filed: October 20, 1999
    Publication date: January 17, 2002
    Inventors: TOSHIO MASUDA, KAZUE TAKAHASHI, MITSURU SUEHIRO, TETSUNORI KAJI, SABURO KANAI
  • Patent number: 6336991
    Abstract: In a method of holding a substrate and a substrate holding system, the amount of foreign substances on the back surface of the substrate can be decreased, and only a small amount of foreign substances transferred from a mounting table to the substrate. For this purpose, the substrate holding system has a ring-shaped leakage-proof surface providing a smooth support surface on the specimen table corresponding to the periphery of the substrate, a plurality of contact holding portions which bear against the substrate on the specimen table between the corresponding position to the periphery of the substrate and the corresponding position to the center of the substrate, and electrostatic attraction means for fixing the substrate by contacting the back surface of the substrate to the ring-shaped leakage-proof surface and the contact holding portions.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: January 8, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Tamura, Kazue Takahashi, Youichi Ito, Yoshifumi Ogawa, Hiroyuki Shichida, Tsunehiko Tsubone
  • Publication number: 20010025608
    Abstract: A method and system of holding a substrate where foreign substances on the back surface can be decreased. The substrate holding system comprises a ring-shaped leakage-proof surface having a smooth surface on the specimen table corresponding to the periphery of the substrate, a plurality of contact holding portions within the periphery of the substrate, and electrostatic attraction means for fixing the substrate by contacting the back surface of the substrate to the ring-shaped leakage-proof surface and the contact holding portions. The substrate contacts to the cooling surface at the ring-shaped leakage-proof surface and the contact holding portion placed on a position inside the ring-shaped leakage-proof surface. The back surface of the substrate and the cooling surface do not contact to each other in the large portion of the remaining area.
    Type: Application
    Filed: May 7, 2001
    Publication date: October 4, 2001
    Inventors: Naoyuki Tamura, Kazue Takahashi, Youichi Ito, Yoshifumi Ogawa, Hiroyuki Shichida, Tsunehiko Tsubone
  • Publication number: 20010019881
    Abstract: A plasma processing apparatus and a plasma processing method for processing a wafer of a large diameter to produce a high speed semiconductor circuit at a high yield are provided. A thickness of an insulating film formed on a surface of an electrode opposing to a substrate to be processed is locally changed, an electrode is provided in the insulating film and a bypassed bias current is supplied to the electrode. An electrode is provided in an insulating film on a surface of the electrode opposing to a material adjacent to the substrate to be processed and a bypassed bias current is supplied to the electrode.
    Type: Application
    Filed: March 1, 2001
    Publication date: September 6, 2001
    Inventors: Yutaka Ohmoto, Hironobu Kawahara, Ken Yoshioka, Kazue Takahashi, Saburou Kanai
  • Publication number: 20010018951
    Abstract: In a plasma processing apparatus that has a vacuum chamber, a process gas supply means of supply gas to a processing chamber, an electrode to hold a sample inside said vacuum chamber, a plasma generator installed in said vacuum chamber opposite to said sample, and a vacuum exhaust system to decrease pressure of said vacuum chamber, a bias voltage of Vdc=−300 to −50 V is applied and the surface temperature of said plate ranges from 100° to 200° C. In addition, the surface temperature fluctuation of the silicon-made plate in said plasma processing apparatus is kept within ±25° C.
    Type: Application
    Filed: February 23, 2001
    Publication date: September 6, 2001
    Inventors: Toshio Masuda, Kazue Takahashi, Ryoji Fukuyama, Tomoyuki Tamura
  • Publication number: 20010015175
    Abstract: The object of the present invention is to provide a plasma processing apparatus wherein plasma is generated in process chamber to treat a sample. Said plasma processing apparatus is further characterized in that multiple closely packed through-holes are formed on the plate installed on the UHF antenna arranged opposite to the sample, an optical transmitter is installed almost in contact with the back of the through-holes, and an optical transmission means is arranged on the other end of said optical transmitter, thereby measuring optical information coming from the sample and plasma through optical transmitter and optical transmission means by means of an measuring instrument. No abnormal discharge or particle contamination occur to through-holes even in long-term discharge process, and no deterioration occurs to the optical performance at the end face of the optical transmitter.
    Type: Application
    Filed: February 21, 2001
    Publication date: August 23, 2001
    Inventors: Toshio Masuda, Tatehito Usui, Mitsuru Suehiro, Hiroshi Kanekiyo, Hideyuki Yamamoto, Kazue Takahashi, Hiromichi Enami
  • Publication number: 20010014520
    Abstract: The intensity of the light emitted from the light-emitting diode 201 on wafer 105 is measured and then the potential difference between the terminals of the light-emitting element, and the plasma current flowing thereinto are derived from measured light intensity. Since the use of a camera enables non-contact measurement of emitted light intensity, the lead-in terminals for lead wires that are always required in conventional probing methods become unnecessary. In addition, since the target wafer does not require lead wire connection, wafers can be changed in the same way as performed for etching.
    Type: Application
    Filed: February 16, 2001
    Publication date: August 16, 2001
    Inventors: Tatehito Usui, Tetsuo Ono, Ryoji Nishio, Kazue Takahashi, Nobuyuki Mise
  • Publication number: 20010009178
    Abstract: Present invention provides a method of holding substrate and a substrate holding system where the amount of foreign substances on the back surface can be decreased, and a little amount of foreign substances may be transferred from a mounting table to a substrate. The substrate holding system comprises a ring-shaped leakage-proof surface having smooth surface on the specimen table corresponding to the periphery of the substrate, a plurality of contact holding portions against the substrate on the specimen table between the corresponding position to the periphery of the substrate and the corresponding position to the center of the substrate, and electrostatic ttraction means for fixing the substrate by contacting the back surface of the substrate to the ring-shaped leakage-proof surface and the contact holding portions. The substrate contacts to the cooling surface at the ring-shaped leakage-proof surface and the contact holding portion placed on a position inside the ring-shaped leakage-proof surface.
    Type: Application
    Filed: February 8, 2001
    Publication date: July 26, 2001
    Inventors: Naoyuki Tamura, Kazue Takahashi, Youichi Ito, Yoshifumi Ogawa, Hiroyuki Shichida, Tsunehiko Tsubone
  • Patent number: 6235146
    Abstract: A stage with an electrostatic attracting means is adapted for use in a wafer treatment at a high temperature in a vacuum treatment system. In a vacuum treatment system having a stage provided in a treatment chamber, which electrostatically attracts an object to the stage in a low pressure atmosphere, and treats the object at high temperature by heating the stage, an electrode member of the stage is made of titanium or a titanium alloy and a dielectric film for electrostatic attraction is formed on the electrode member. In order to bond firmly titanium and alumina ceramics, it is desirable to sandwich a nickel alloy (Ni—Al) between the materials.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: May 22, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Masanori Kadotani, Saburo Kanai, Youichi Itou, Takashi Fujii, Hironobu Kawahara, Ryouji Hamasaki, Kazue Takahashi, Motohiko Yoshigai
  • Patent number: 6221201
    Abstract: Present invention provides a method of holding substrate and a substrate holding system where the amount of foreign substances on the back surface can be decreased, and a little amount of foreign substances may be transferred from a mounting table to a substrate. The substrate holding system comprises a ring-shaped leakage-proof surface having smooth surface on the specimen table corresponding to the periphery of the substrate, a plurality of contact holding portions against the substrate on the specimen table between the corresponding position to the periphery of the substrate and the corresponding position to the center of the substrate, and electrostatic ttraction means for fixing the substrate by contacting the back surface of the substrate to the ring-shaped leakage-proof surface and the contact holding portions. The substrate contacts to the cooling surface at the ring-shaped leakage-proof surface and the contact holding portion placed on a position inside the ring-shaped leakage-proof surface.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: April 24, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Tamura, Kazue Takahashi, Youichi Ito, Yoshifumi Ogawa, Hiroyuki Shichida, Tsunehiko Tsubone
  • Patent number: 6217705
    Abstract: A substrate holding system is provided for holding a substrate in a substrate etching apparatus by using electrostatic force. An electrical insulating member is also provided having a top surface approximately at the same level as the treated surface of the substrate and having an inner side surface in adjacent relationship with a surface of the substrate forming the periphery of the substrate. The inner side surface of the electrical insulating member faces the periphery of the substrate in substantially parallel relationship with a direction normal to the treated surface of the substrate. A dielectric film is formed on one surface of a metallic member having a flow passage for circulating a coolant to control the temperature of the substrate. An electrically insulating material member is placed on and in contact with a surface of the metallic member.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: April 17, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Tamura, Kazue Takahashi, Youichi Ito, Yoshitumi Ogawa, Hiroyuki Shichida, Tsunehiko Tsubone