Patents by Inventor Hideharu Kyouda
Hideharu Kyouda 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).
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Patent number: 8518494Abstract: Disclosed is a technique for preventing a water-repellent protective film formed on a resist film from peeling off during immersion exposure. A resist film is formed on the front surface of a substrate and then the peripheral edge portion of the resist film is removed. Before forming a water-repellent protective film onto the resist film, an adhesion-improving fluid, preferably hexamethyldisilazane gas, for improving the adhesion of the water-repellent protective film, is supplied to the region from which the resist film is removed.Type: GrantFiled: February 7, 2007Date of Patent: August 27, 2013Assignee: Tokyo Electron LimitedInventors: Taro Yamamoto, Hideharu Kyouda
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Patent number: 8445189Abstract: The temperature of a developing solution is varied depending on the type of resist or the resist pattern. The developing solution is applied while scanning a developer nozzle having a slit-shaped ejection port that has a length matching the width of the effective area of the substrate. After leaving the substrate with the developing solution being coated thereon for a predetermined period of time, a diluent is supplied while scanning a diluent nozzle, thereby substantially stopping the development reaction and causing the dissolved resist components to diffuse. A desired amount of resist can be quickly dissolved through the control of the developing solution temperature, while the development can be stopped before the dissolved resist components exhibit adverse effect through the supply of the diluent a predetermined timing, whereby achieving a pattern having a uniform line width and improved throughput.Type: GrantFiled: February 10, 2011Date of Patent: May 21, 2013Assignee: Tokyo Electron LimitedInventors: Taro Yamamoto, Kousuke Yoshihara, Hideharu Kyouda, Hirofumi Takeguchi, Atsushi Ookouchi
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Patent number: 8366872Abstract: According to the present invention, during the photolithography processing of a substrate, exposure processing is performed immediately after removal of a coating film on the rear surface of the substrate, and a coating film is formed on the rear surface of the substrate immediately after the exposure processing. Thereafter, etching treatment and so on are performed, and a series of these treatment and processing steps are performed a predetermined number of times. The coating film has been formed on the rear surface of the substrate at the time for the etching treatment, so that even if the coating film gets minute scratches, the rear surface of the substrate itself is protected by the coating film and thus never scratched. Further, since the coating film on the rear surface of the substrate is removed immediately before the exposure processing, the rear surface of the substrate can be flat for the exposure processing.Type: GrantFiled: June 15, 2011Date of Patent: February 5, 2013Assignee: Tokyo Electron LimitedInventors: Kenji Tsutsumi, Junichi Kitano, Osamu Miyahara, Hideharu Kyouda
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Publication number: 20120218531Abstract: Provided are a developing method and a developing apparatus that can reduce process time and improve throughput in a developing process using a developer containing organic solvent. The present invention relates to a developing method for performing developing by supplying a developer containing organic solvent to a substrate having its surface coated with a resist and exposed. The developing method of the invention includes a liquid film forming step for forming a liquid film by supplying the developer from a developer supply nozzle to a central portion of the substrate while rotating the substrate, and a developing step for developing the resist film on the substrate while rotating the substrate in a state where the supply of the developer from the developer supply nozzle to the substrate is stopped and in such a manner that the liquid film of the developer would not dry.Type: ApplicationFiled: February 15, 2012Publication date: August 30, 2012Applicant: Tokyo Electron LimitedInventors: Kouichi Hontake, Takafumi Niwa, Hideharu Kyouda, Kousuke Yoshihara
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Publication number: 20120140191Abstract: A coating and developing apparatus has: a treatment block-including a water repellent module performing water repellent treatment on a substrate, a coating module, and a developing module; a substrate side-surface portion water repellent module for performing water repellent treatment on a side surface of a substrate; and a control unit controlling operations of the modules to execute steps of performing water repellent treatment at least on a side surface portion of a substrate and performing a first resist coating on an entire surface of the substrate; performing a first development after a first liquid-immersion exposure is performed; performing a second resist coating on the entire surface, and performing a second development after a second liquid-immersion exposure is performed, and further to execute a step of performing water repellent treatment on the side surface portion of the substrate after the first development and before the second exposure is performed.Type: ApplicationFiled: February 15, 2012Publication date: June 7, 2012Applicant: Tokyo Electron LimitedInventors: Kouichi HONTAKE, Hideharu Kyouda
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Patent number: 8163469Abstract: A coating and developing apparatus has: a treatment block-including a water repellent module performing water repellent treatment on a substrate, a coating module, and a developing module; a substrate side-surface portion water repellent module for performing water repellent treatment on a side surface of a substrate; and a control unit controlling operations of the modules to execute steps of performing water repellent treatment at least on a side surface portion of a substrate and performing a first resist coating on an entire surface of the substrate; performing a first development after a first liquid-immersion exposure is performed; performing a second resist coating on the entire surface, and performing a second development after a second liquid-immersion exposure is performed, and further to execute a step of performing water repellent treatment on the side surface portion of the substrate after the first development and before the second exposure is performed.Type: GrantFiled: February 26, 2010Date of Patent: April 24, 2012Assignee: Tokyo Electron LimitedInventors: Kouichi Hontake, Hideharu Kyouda
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Publication number: 20120061021Abstract: In the present invention, a plurality of rounds of patterning are performed on a substrate. In a patterning system, the substrate on which a first round of patterning has been performed is transferred to a planarizing film forming unit, where a planarizing film is formed above the substrate. The substrate is then transferred to the patterning system and subjected to a second round of patterning. The time from the completion of the forming processing of the planarizing film to the start of the second round of patterning is managed to be constant among the substrates. According to the present invention, in the pattern forming processing of performing a plurality of rounds of patterning, a pattern with a desired dimension can be stably formed above the substrate.Type: ApplicationFiled: November 18, 2011Publication date: March 15, 2012Applicant: TOKYO ELECTRON LIMITEDInventors: Hideharu Kyouda, Junichi Kitano, Osamu Miyahara, Kenji Tsutsumi
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Patent number: 8110325Abstract: A substrate treatment method including a first treatment process (S13 to S16) for exposing, heating, and developing a substrate on which a first resist is formed, thereby forming a first resist pattern, and a second treatment process (S17 to S20) for forming a second resist film on the substrate on which the first resist pattern is formed, exposing, heating, and developing the substrate on which the second resist film is formed, thereby forming a second resist pattern. Also, the substrate treatment method compensates a first treatment condition in a first treatment process (S22 to S25) based on a measured value of a line width of the second resist pattern and a second treatment condition in a second treatment process (S26 to S29) based on a measured value of a line width of the first resist pattern.Type: GrantFiled: February 8, 2011Date of Patent: February 7, 2012Assignee: Tokyo Electron LimitedInventors: Takafumi Niwa, Hiroshi Nakamura, Hideharu Kyouda
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Patent number: 8111372Abstract: A coating film forming apparatus for immersion light exposure includes one or more coating units configured to apply a resist film or a resist film and an additional film onto a substrate, one or more thermally processing units configured to perform a thermal process, a defect eliciting unit configured to perform a process for eliciting a latent defect of a coating film at an edge portion of the substrate, a checking unit configured to check a state of the coating film after the process by the defect eliciting unit, a control section configured to use a check result obtained by the checking unit to make a judgment of the state of the coating film and permit transfer of the substrate to the light exposure apparatus, and a cleaning unit configured to perform cleaning on the substrate before the process by the defect eliciting unit.Type: GrantFiled: November 19, 2007Date of Patent: February 7, 2012Assignee: Tokyo Electron LimitedInventors: Hideharu Kyouda, Junichi Kitano, Taro Yamamoto
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Publication number: 20120006362Abstract: A substrate cleaning device and a substrate cleaning method reduces liquid drops remaining on a substrate to prevent the irregular heating of the substrate by a heating process due to liquid drops or water marks remaining on the substrate. A cleaning liquid is poured through a cleaning liquid pouring nozzle onto the surface of a substrate such that a region onto which the cleaning liquid is poured moves from a central part toward the circumference of the substrate. A gas is jetted radially outward at a region on the surface of the substrate behind a region onto which the cleaning liquid is poured with respect to the rotating direction of the substrate. The gas forces a liquid film of the cleaning liquid flowing on the surface of the substrate to flow in a circumferential direction and a radially outward direction.Type: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Applicant: TOKYO ELECTRON LIMITEDInventors: Taro Yamamoto, Hideharu Kyouda, Tetsu Kawasaki, Satoru Shimura
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Patent number: 8083959Abstract: In the present invention, a plurality of rounds of patterning are performed on a substrate. In a patterning system, the substrate on which a first round of patterning has been performed is transferred to a planarizing film forming unit, where a planarizing film is formed above the substrate. The substrate is then transferred to the patterning system and subjected to a second round of patterning. The time from the completion of the forming processing of the planarizing film to the start of the second round of patterning is managed to be constant among the substrates. According to the present invention, in the pattern forming processing of performing a plurality of rounds of patterning, a pattern with a desired dimension can be stably formed above the substrate.Type: GrantFiled: December 18, 2007Date of Patent: December 27, 2011Assignee: Tokyo Electron LimitedInventors: Hideharu Kyouda, Junichi Kitano, Osamu Miyahara, Kenji Tsutsumi
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Patent number: 8037890Abstract: A substrate cleaning device and a substrate cleaning method reduces liquid drops remaining on a substrate to prevent the irregular heating of the substrate by a heating process due to liquid drops or water marks remaining on the substrate. A cleaning liquid is poured through a cleaning liquid pouring nozzle onto the surface of a substrate such that a region onto which the cleaning liquid is poured moves from a central part toward the circumference of the substrate. A gas is jetted radially outward at a region on the surface of the substrate behind a region onto which the cleaning liquid is poured with respect to the rotating direction of the substrate. The gas forces a liquid film of the cleaning liquid flowing on the surface of the substrate to flow in a circumferential direction and a radially outward direction.Type: GrantFiled: August 25, 2006Date of Patent: October 18, 2011Assignee: Tokyo Electron LimitedInventors: Taro Yamamoto, Hideharu Kyouda, Tetsu Kawasaki, Satoru Shimura
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Publication number: 20110240597Abstract: According to the present invention, during the photolithography processing of a substrate, exposure processing is performed immediately after removal of a coating film on the rear surface of the substrate, and a coating film is formed on the rear surface of the substrate immediately after the exposure processing. Thereafter, etching treatment and so on are performed, and a series of these treatment and processing steps are performed a predetermined number of times. The coating film has been formed on the rear surface of the substrate at the time for the etching treatment, so that even if the coating film gets minute scratches, the rear surface of the substrate itself is protected by the coating film and thus never scratched. Further, since the coating film on the rear surface of the substrate is removed immediately before the exposure processing, the rear surface of the substrate can be flat for the exposure processing.Type: ApplicationFiled: June 15, 2011Publication date: October 6, 2011Applicant: TOKYO ELECTRON LIMITEDInventors: Kenji TSUTSUMI, Junichi Kitano, Osamu Miyahara, Hideharu Kyouda
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Patent number: 8026048Abstract: A developer nozzle is moved from a periphery of a wafer toward the central portion while an exposed substrate held at a spin chuck is being rotated about a vertical axis and while a developing solution is being discharged from the developer nozzle, and this way the developing solution is supplied to the surface of the wafer, the developer nozzle having a slit-like ejection port whose longitudinal direction is oriented to the direction perpendicular to the radial direction of the wafer. The movement speed of the nozzle is higher than a case where a nozzle with a small-diameter circular nozzle is used, and this enables a development time to be reduced. Further, the thickness of a developing solution on a substrate can be reduced, so that the developing solution can be saved.Type: GrantFiled: September 8, 2010Date of Patent: September 27, 2011Assignee: Tokyo Electron LimitedInventors: Atsushi Ookouchi, Taro Yamamoto, Hirofumi Takeguchi, Hideharu Kyouda, Kousuke Yoshihara
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Patent number: 8010221Abstract: A cleaning apparatus for immersion light exposure includes a cleaning apparatus main body including a mechanism configured to perform a cleaning process on the substrate, and a control section configured to control respective components of the cleaning apparatus main body. The control section is arranged to fabricate a new process recipe in response to input of a surface state of a film formed on a substrate, such that the new process recipe contains hardware conditions and/or process conditions corresponding to the surface state, with reference to relationships stored therein between parameter values representing a surface state of a film formed on a substrate and hardware conditions and/or process conditions for performing suitable cleaning for the parameter values; and to control the cleaning apparatus main body to perform a cleaning process in accordance with the new process recipe.Type: GrantFiled: December 3, 2007Date of Patent: August 30, 2011Assignee: Tokyo Electron LimitedInventors: Kouichi Hontake, Masashi Enomoto, Hideharu Kyouda
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Publication number: 20110200923Abstract: A substrate treatment method including a first treatment process (S13 to S16) for exposing, heating, and developing a substrate on which a first resist is formed, thereby forming a first resist pattern, and a second treatment process (S17 to S20) for forming a second resist film on the substrate on which the first resist pattern is formed, exposing, heating, and developing the substrate on which the second resist film is formed, thereby forming a second resist pattern. Also, the substrate treatment method compensates a first treatment condition in a first treatment process (S22 to S25) based on a measured value of a line width of the second resist pattern and a second treatment condition in a second treatment process (S26 to S29) based on a measured value of a line width of the first resist pattern.Type: ApplicationFiled: February 8, 2011Publication date: August 18, 2011Applicant: TOKYO ELECTRON LIMITEDInventors: Takafumi NIWA, Hiroshi NAKAMURA, Hideharu KYOUDA
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Publication number: 20110155693Abstract: In the coating treatment apparatus, in a first treatment chamber, the front and rear surfaces of the substrate held by a transfer arm are inverted by a turning mechanism, and a coating solution is applied from a coating nozzle to the rear surface of the substrate. The substrate is transferred into a second treatment chamber, in which the coating solution on the rear surface is heated by a heating unit to cure, thereby forming a coating film on the rear surface of the substrate. The formation of the coating film by the coating treatment apparatus is performed before exposure processing, whereby the rear surface of the substrate can be flat for the exposure processing.Type: ApplicationFiled: March 7, 2011Publication date: June 30, 2011Applicant: TOKYO ELECTRON LIMITEDInventors: Kenji TSUTSUMI, Junichi KITANO, Osamu MIYAHARA, Hideharu KYOUDA
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Patent number: 7959988Abstract: A coating film forming apparatus includes a process section including one or more coating units and one or more thermally processing units; a pre-coating cleaning unit configured to perform cleaning on a back surface and an edge portion of a substrate; and a pre-coating check unit configured to check a state of a back surface and an edge portion of the substrate. A control section is configured to realize a sequence of cleaning the substrate by the pre-coating cleaning unit, checking the substrate by the pre-coating check unit, making a judgment based on a check result thus obtained of whether or not a state of particles on a back surface and an edge portion of the substrate is within an acceptable range, and permitting transfer of the substrate into the process section where the state of particles is within the acceptable range.Type: GrantFiled: November 23, 2007Date of Patent: June 14, 2011Assignee: Tokyo Electron LimitedInventors: Taro Yamamoto, Yasushi Takiguchi, Akihiro Fujimoto, Hideharu Kyouda, Junichi Kitano, Osamu Miyahara, Kenji Tsutsumi
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Publication number: 20110127236Abstract: The temperature of a developing solution is varied depending on the type of resist or the resist pattern. The developing solution is applied while scanning a developer nozzle having a slit-shaped ejection port that has a length matching the width of the effective area of the substrate. After leaving the substrate with the developing solution being coated thereon for a predetermined period of time, a diluent is supplied while scanning a diluent nozzle, thereby substantially stopping the development reaction and causing the dissolved resist components to diffuse. A desired amount of resist can be quickly dissolved through the control of the developing solution temperature, while the development can be stopped before the dissolved resist components exhibit adverse effect through the supply of the diluent a predetermined timing, whereby achieving a pattern having a uniform line width and improved throughput.Type: ApplicationFiled: February 10, 2011Publication date: June 2, 2011Applicant: TOKYO ELECTRON LIMITEDInventors: Taro YAMAMOTO, Kousuke Yoshihara, Hideharu Kyouda, Hirofumi Takeguchi, Atsushi Ookouchi
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Patent number: 7926441Abstract: In the coating treatment apparatus, in a first treatment chamber, the front and rear surfaces of the substrate held by a transfer arm are inverted by a turning mechanism, and a coating solution is applied from a coating nozzle to the rear surface of the substrate. The substrate is transferred into a second treatment chamber, in which the coating solution on the rear surface is heated by a heating unit to cure, thereby forming a coating film on the rear surface of the substrate. The formation of the coating film by the coating treatment apparatus is performed before exposure processing, whereby the rear surface of the substrate can be flat for the exposure processing.Type: GrantFiled: January 18, 2008Date of Patent: April 19, 2011Assignee: Tokyo Electron LimitedInventors: Kenji Tsutsumi, Junichi Kitano, Osamu Miyahara, Hideharu Kyouda