Patent application number | Description | Published |
20090047795 | PLASMA PROCESSING APPARATUS, PLASMA PROCESSING METHOD AND STORAGE MEDIUM - A plasma processing apparatus includes a first radio frequency (RF) power supply unit for applying a first RF power for generating a plasma from a processing gas to at least one of a first and a second electrode which are disposed facing each other in an evacuable processing chamber. The first RF power supply unit is controlled by a control unit so that a first phase at which the first RF power has a first amplitude for generating a plasma and a second phase at which the first RF power has a second amplitude for generating substantially no plasma are alternately repeated at predetermined intervals. | 02-19-2009 |
20090194508 | SUBSTRATE PLASMA PROCESSING APPARATUS AND PLASMA PROCESSING METHOD - A substrate plasma processing apparatus includes a substrate holding electrode and a counter electrode which are arranged in a chamber, a high frequency generating device which applies a high frequency of 50 MHZ or higher to the substrate holding electrode, a DC negative pulse generating device which applies a DC negative pulse voltage in a manner of superimposing on the high frequency, and a controller controlling to cause intermittent application of the high frequency and cause intermittent application of the DC negative pulse voltage according to the timing of on or off of the high frequency. | 08-06-2009 |
20090197423 | SUBSTRATE PROCESSING METHOD AND SUBSTRATE PROCESSING APPARATUS - A substrate processing method that can eliminate unevenness in the distribution of plasma. The method is for a substrate processing apparatus that has a processing chamber in which a substrate is housed, a mounting stage that is disposed in the processing chamber and on which the substrate is mounted, and an electrode plate that is disposed in the processing chamber such as to face the mounting stage, the electrode plate being made of silicon and connected to a radio-frequency power source, and carries out plasma processing on the substrate. In the plasma processing, the temperature of the electrode plate is measured, and based on the measured temperature, the temperature of the electrode plate is maintained lower than a critical temperature at which the specific resistance value of the silicon starts changing. | 08-06-2009 |
20090199967 | MOUNTING STAGE AND PLASMA PROCESSING APPARATUS - A mounting stage for a plasma processing apparatus that can prevent degradation of an insulating film in a semiconductor device on a substrate. A conductor member is connected to a radio-frequency power source for producing plasma. A dielectric layer is buried in a central portion of an upper surface of the conductor member. An electrostatic chuck is mounted on the dielectric layer. The electrostatic chuck has an electrode film that satisfies the following condition: | 08-13-2009 |
20090221151 | Electrode for plasma processing apparatus, plasma processing apparatus, plasma processing method and storage medium - The present invention provides an upper electrode used in an etching apparatus and the etching apparatus including the upper electrode, both of which can properly reduce intensity of electric field of plasma around a central portion of a substrate to be processed, thus enhancing in-plane uniformity of a plasma process. In this apparatus, a recess, serving as a space for allowing a dielectric to be injected therein, is provided around a central portion of the upper electrode. A dielectric supply passage configured for supplying the dielectric into the space and a dielectric discharge passage configured for discharging the dielectric from the space are connected with the space, respectively. With such configuration, the dielectric can be controllably supplied into the recess, such that in-plane distribution of the intensity of the electric field can be uniformed, corresponding to in-plane distribution of the intensity of the electric field of the plasma generated under various process conditions, such as a kind of each wafer that will be etched, each processing gas that will be used, and the like. | 09-03-2009 |
20090285998 | PLASMA PROCESSING APPARATUS, ELECTRODE PLATE FOR PLASMA PROCESSING APPARATUS, AND ELECTRODE PLATE MANUFACTURING METHOD - A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated. | 11-19-2009 |
20100072172 | SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD - There are provided a substrate processing apparatus and a substrate processing method realizing an effective reduction of a voltage change of a substrate on an electrode to reduce the variation of incident energy of ions entering the substrate. The substrate processing apparatus includes: a first electrode holding a substrate on a main surface of the first electrode; a second electrode facing the first electrode; a RF power source applying to the first electrode a RF voltage whose frequency is equal to or higher than 40 MHz; and a pulse voltage applying unit applying to the first electrode a pulse voltage decreasing in accordance with a lapse of time, by superimposing the pulse voltage on the RF voltage. | 03-25-2010 |
20110048643 | PLASMA PROCESSING APPARATUS AND FOCUS RING - A plasma processing apparatus and a focus ring enables to perform uniform plasma processing over the entire surface of a substrate to be processed to thereby improve in-surface uniformity of plasma processing compared with conventional cases. The focus ring is disposed on a susceptor | 03-03-2011 |
20110162802 | PLASMA PROCESSING APPARATUS, ELECTRODE PLATE FOR PLASMA PROCESSING APPARATUS, AND ELECTRODE PLATE MANUFACTURING METHOD - A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated. | 07-07-2011 |
20110192540 | TABLE FOR PLASMA PROCESSING APPARATUS AND PLASMA PROCESSING APPARATUS - An object of the present invention is to suppress damage of an electrostatic chuck, by controlling stress exerted on each part of a table, which includes an electrically conductive material, i.e., an electrode for generating plasma, a dielectric layer for enhancing the in-plane uniformity of a plasma process, and an electrostatic chuck. The table for a plasma processing apparatus includes an electrically conductive member connected with a high frequency power source and adapted for plasma generation, for drawing ions present in the plasma, or for both thereof; a dielectric layer provided on a top face of the electrically conductive member, having a central portion and a peripheral portion that are different in thickness relative to each other, and adapted for providing uniformity of high frequency electric field intensity in a plane over the substrate to be processed; and an electrode film for an electrostatic chuck, provided in the dielectric layer and adapted for electrostatically chucking the substrate onto a top face of the dielectric layer. With such configuration, the stress exerted on the electrostatic chuck due to temperature change can be controlled. | 08-11-2011 |
20110232846 | MAGNETIC FIELD GENERATOR FOR MAGNETRON PLASMA - Disclosed is a magnetic field generator for magnetron plasma. The magnetic field generator is provided with a plurality of magnetic segments, and generates a predetermined multi-pole magnetic field around the periphery of a workpiece substrate within a process chamber. The strength of the multi-pole magnetic field is controlled so that the state of the multi-pole magnetic field is matched different plasma processes. Further, the pattern of the multi-pole magnetic field can be changed so as to match different sizes of the substrate. | 09-29-2011 |
20120037315 | CAPACITIVE COUPLING PLASMA PROCESSING APPARATUS - 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. The second electrode includes a plurality of conductive segments separated from each other and facing the first electrode. An RF power supply is configured to apply an RF power to the first 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 by the RF electric field. A DC power supply is configured to apply a DC voltage to at least one of the segments of the second electrode. | 02-16-2012 |
20130122714 | PLASMA PROCESSING APPARATUS, PLASMA PROCESSING METHOD AND STORAGE MEDIUM - A plasma processing apparatus includes a first radio frequency (RF) power supply unit for applying a first RF power for generating a plasma from a processing gas to at least one of a first and a second electrode which are disposed facing each other in an evacuable processing chamber. The first RF power supply unit is controlled by a control unit so that a first phase at which the first RF power has a first amplitude for generating a plasma and a second phase at which the first RF power has a second amplitude for generating substantially no plasma are alternately repeated at predetermined intervals. | 05-16-2013 |
20140027059 | ELECTRODE FOR PLASMA PROCESSING APPARATUS, PLASMA PROCESSING APPARATUS, PLASMA PROCESSING METHOD AND STORAGE MEDIUM - The present invention provides an upper electrode and an etching apparatus including the electrode, both of which can properly reduce the intensity of the electric field of plasma around a central portion of a substrate, thus enhancing in-plane uniformity. In this apparatus, a recess, serving as a space for allowing a dielectric to be injected therein, is provided around a central portion of the upper electrode. Both a dielectric supply passage and a dielectric discharge passage are connected with the space. With such configuration, controlled supply of the dielectric into the recess makes the in-plane electric field intensity distribution uniform over various process conditions, such as the kind of wafer to be etched, the processing gas to be used, and the like. | 01-30-2014 |