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    • 21. 发明申请
    • High frequency plasma generator and high frequency plasma generating method
    • 高频等离子体发生器和高频等离子体发生方法
    • US20050241768A1
    • 2005-11-03
    • US10519553
    • 2003-10-01
    • Keisuke KawamuraAkira YamadaHiroshi MashimaYoshiaki Takeuchi
    • Keisuke KawamuraAkira YamadaHiroshi MashimaYoshiaki Takeuchi
    • H05H1/46C23C16/509C23F1/00H01J37/32H01L21/205H01L21/3065
    • H01J37/32155H01J37/32091
    • An object is to provide a high-frequency plasma generating apparatus and process which can further advance uniformity of the thickness of a film on a substrate with a large area in comparison with conventional apparatuses. In a reaction chamber (1), a ground electrode (3) is disposed, and a discharge electrode (2) is disposed opposite to the ground electrode (3). A substrate (4) as a processing object is placed in close contact with the ground electrode (3). A high-frequency voltage is applied to the discharge electrode (2) so as to generate plasma between the ground electrode and the discharge electrode. An RF electric power supply (15) generates a first high-frequency voltage, and outputs the generated voltage on feeding points (9) disposed on a lateral portion of the discharge electrode (2). An RF electric power supply (16) generates a second high-frequency voltage, and outputs the generated voltage on feeding points (9) disposed on another lateral portion of the discharge electrode (2). Here, the second high-frequency voltage has the same frequency as that of the first high-frequency voltage and has a phase which varies with a low-frequency signal, which is modulated by a predetermined modulation signal.
    • 本发明的目的是提供一种高频等离子体发生装置和方法,与现有的装置相比,能够进一步提高基板上膜厚度的均匀性。 在反应室(1)中设置接地电极(3),放电电极(2)与接地电极(3)相对设置。 作为处理对象的基板(4)与接地电极(3)紧密接触。 向放电电极(2)施加高频电压,以在接地电极和放电电极之间产生等离子体。 RF电源(15)产生第一高频电压,并且在放电电极(2)的侧面部分上的馈电点(9)上输出产生的电压。 RF电源(16)产生第二高频电压,并且在放电电极(2)的另一侧面部分上的馈电点(9)上输出产生的电压。 这里,第二高频电压具有与第一高频电压相同的频率,并且具有随着由预定调制信号调制的低频信号而变化的相位。
    • 22. 发明授权
    • Pulse generator for treating exhaust gas
    • 用于处理废气的脉冲发生器
    • US06344701B1
    • 2002-02-05
    • US09369842
    • 1999-08-09
    • Keisuke KawamuraTetsuro ShigemizuHirohisa YoshidaMasayoshi Murata
    • Keisuke KawamuraTetsuro ShigemizuHirohisa YoshidaMasayoshi Murata
    • H03K302
    • F01N3/0892B01D53/32B01D2259/818B01J19/088B01J2219/0807B01J2219/0875B01J2219/0894
    • An apparatus and method for treating exhaust gases. In this apparatus, a plurality of stages of reactor chambers (R1, R2, . . . Rn) are connected in series in the direction of an exhaust gas flow. Further, high-voltage power supplies (V1, V2, . . . and Vn) are connected to the reactor chambers (R1, R2, . . . and Rn), respectively. Moreover, in each of these reactor chambers, a streamer discharger plasma is generated. Furthermore, the more downstream a reactor chamber of a stage is placed, the lower energy to be cast into the reactor chamber becomes. The density of electrons generated in a gas decomposition unit is high in a portion thereof on the upstream side of the exhaust gas flow and the electron density is low in a portion thereof on the downstream side. Additionally, the present invention further provides a pulse generator in which a high voltage, which is an output voltage of a D.C. charger (V0), is simultaneously applied to a plurality of distributed constant lines (or transmission lines) (1−1, 1−2, 2−1, 2−2, . . . , N−1 and N−2), which are connected in parallel with one another, by means of a signal shortcircuit switch (S1).
    • 一种处理废气的设备和方法。 在这种装置中,多个反应室(R1,R2,...,Rn)在废气流的方向上串联连接。 此外,高压电源(V1,V2,...和Vn)分别连接到电抗器室(R1,R2,...和Rn)。 此外,在这些反应器室的每一个中,产生流光放电器等离子体。 此外,放置阶段的反应室的下游越下游,要投入反应器室的较低能量变为。 在气体分解单元中产生的电子的密度在排气流的上游侧的部分高,并且其下游侧的部分的电子密度低。 另外,本发明还提供一种脉冲发生器,其中作为直流充电器(V0)的输出电压的高电压同时施加到多个分布常数线路(或传输线路)(1-1,1) -2,2-1,2-2,...,N-1和N-2),它们通过信号短路开关(S1)彼此并联连接。
    • 23. 发明授权
    • High-frequency power supply structure and plasma CVD device using the same
    • 高频电源结构和等离子体CVD装置使用相同
    • US07319295B2
    • 2008-01-15
    • US10506544
    • 2003-03-13
    • Hiroshi MashimaKeisuke KawamuraAkemi TakanoYoshiaki TakeuchiTetsuro ShigemizuTatsufumi Aoi
    • Hiroshi MashimaKeisuke KawamuraAkemi TakanoYoshiaki TakeuchiTetsuro ShigemizuTatsufumi Aoi
    • H01J7/24
    • H01J37/32577H01J37/32082
    • A radio frequency power supply structure and a plasma CVD device comprising the same are provided in which reflection of radio frequency power at a connecting portion where an RF cable connects to an electrode is reduced so that incidence of the radio frequency power into the electrode increases. In the radio frequency power supply structure for use in a device generating plasma by charging a plate-like electrode with a radio frequency power, the radio frequency power supply structure supplying the electrode with the radio frequency power from an RF cable, the RF cable is positioned on an extended plane of a plane formed by the electrode to connect to the electrode at a connecting portion provided on an end peripheral portion of the electrode. The RF cable connects to the electrode substantially in the same plane as the plane formed by the electrode. Voltage acting after the connecting portion becomes symmetric relative to the plane formed by the electrode and the electric line of force also becomes symmetric. Thereby, change of impedance at the connecting portion is reduced, reflection of the radio frequency power at the connecting portion is reduced, incidence of the radio frequency power into the electrode increases and the efficiency of film forming and surface treatment is enhanced.
    • 提供射频电源结构和包括该射频电源结构的等离子体CVD装置,其中RF电缆连接到电极的连接部分处的射频功率的反射减小,使得射频功率进入电极的入射增加。 在通过对具有射频功率的板状电极进行充电来生成等离子体的装置的射频电源结构中,射频电源结构从RF电缆向射频电源供给射频电力,RF电缆为 位于由电极形成的平面的延伸平面上,以在设置在电极的端部周边部分上的连接部分处连接到电极。 RF电缆基本上在与电极形成的平面相同的平面中连接到电极。 在连接部分之后作用的电压相对于由电极和电力线形成的平面对称也变为对称。 由此,连接部的阻抗变化减小,连接部处的射频功率的反射减小,电极的射频功率的增加,成膜和表面处理的效率提高。
    • 25. 发明申请
    • High-frequency power supply structure and plasma cvd device using the same
    • 高频电源结构和等离子cvd设备使用相同
    • US20050127844A1
    • 2005-06-16
    • US10506544
    • 2003-03-13
    • Hiroshi MashimaKeisuke KawamuraAkemi TakanoYoshiaki TakeuchiTetsuro ShigemizuTatsufumi Aoi
    • Hiroshi MashimaKeisuke KawamuraAkemi TakanoYoshiaki TakeuchiTetsuro ShigemizuTatsufumi Aoi
    • C23C16/509H01J37/32H01L21/205H01J7/24
    • H01J37/32577H01J37/32082
    • A radio frequency power supply structure and a plasma CVD device comprising the same are provided in which reflection of radio frequency power at a connecting portion where an RF cable connects to an electrode is reduced so that incidence of the radio frequency power into the electrode increases. In the radio frequency power supply structure for use in a device generating plasma by charging a plate-like electrode with a radio frequency power, the radio frequency power supply structure supplying the electrode with the radio frequency power from an RF cable, the RF cable is positioned on an extended plane of a plane formed by the electrode to connect to the electrode at a connecting portion provided on an end peripheral portion of the electrode. The RF cable connects to the electrode substantially in the same plane as the plane formed by the electrode. Voltage acting after the connecting portion becomes symmetric relative to the plane formed by the electrode and the electric line of force also becomes symmetric. Thereby, change of impedance at the connecting portion is reduced, reflection of the radio frequency power at the connecting portion is reduced, incidence of the radio frequency power into the electrode increases and the efficiency of film forming and surface treatment is enhanced.
    • 提供射频电源结构和包括该射频电源结构的等离子体CVD装置,其中RF电缆连接到电极的连接部分处的射频功率的反射减小,使得射频功率进入电极的入射增加。 在通过对具有射频功率的板状电极进行充电来生成等离子体的装置的射频电源结构中,射频电源结构从RF电缆向射频电源供给射频电力,RF电缆为 位于由电极形成的平面的延伸平面上,以在设置在电极的端部周边部分上的连接部分处连接到电极。 RF电缆基本上在与电极形成的平面相同的平面中连接到电极。 在连接部分之后作用的电压相对于由电极和电力线形成的平面对称也变为对称。 由此,连接部的阻抗变化减小,连接部处的射频功率的反射减小,电极的射频功率的增加,成膜和表面处理的效率提高。
    • 26. 发明授权
    • Simox substrate and method for production thereof
    • Simox底物及其生产方法
    • US06767801B2
    • 2004-07-27
    • US10221077
    • 2002-09-09
    • Keisuke KawamuraAtsuki MatsumuraToshiyuki Mizutani
    • Keisuke KawamuraAtsuki MatsumuraToshiyuki Mizutani
    • H01L2176
    • H01L21/26533H01L21/324H01L21/76227H01L21/76243
    • A SIMOX substrate having a buried oxide layer and a surface single crystal silicon layer formed therein is produced by a method which comprises implanting oxygen ions into a silicon single crystal substrate and subsequently performing a heat treatment at an elevated temperature on the substrate. The method is characterized by performing the former stage of the heat treatment at a temperature of not lower than 1150° C. and lower than the melting point of single crystal silicon in an atmosphere obtained by adding oxygen under a partial pressure of not more than 1% to an inert gas and subsequently performing at least part of the latter stage of the heat treatment by increasing the partial pressure of oxygen within a range in which no internal oxidation is suffered to occur in the buried oxide layer. It can also be prepared by performing the former stage of the high temperature heat treatment at a temperature of not lower than 1150° C. and lower than the melting point of silicon under in inert gas atmosphere containing not more than 1 vol.% of oxygen and performing ITOX treatment of the buried oxide layer at a temperature of not more than 1300° C.
    • 通过包括将氧离子注入到硅单晶衬底中并随后在衬底上在升高的温度下进行热处理的方法来制造具有掩埋氧化物层和形成在其中的表面单晶硅层的SIMOX衬底。 该方法的特征在于,在不低于1150℃的温度下进行前期的热处理,并且在通过在不大于1的分压下加入氧气获得的气氛中的单晶硅的熔点低 %的惰性气体,然后通过在掩埋氧化物层内不发生内部氧化的范围内增加氧的分压来进行后段的热处理的至少一部分。 也可以通过在不低于1150℃的温度下进行高温热处理的前一阶段并且低于在不超过1体积%的氧的惰性气体气氛中的硅的熔点 并且在不高于1300℃的温度下进行掩埋氧化物层的ITOX处理。
    • 29. 发明授权
    • Plasma type exhaust gas cleaning apparatus
    • 等离子体废气净化装置
    • US06558636B2
    • 2003-05-06
    • US09768258
    • 2001-01-25
    • Yasuki TamuraKojiro OkadaKazuo KogaOsamu NakayamaKeisuke KawamuraKiyoshi Kawamura
    • Yasuki TamuraKojiro OkadaKazuo KogaOsamu NakayamaKeisuke KawamuraKiyoshi Kawamura
    • B01J1908
    • B01D53/32F01N3/0892
    • The present plasma type exhaust gas cleaning apparatus comprises a dielectric (5) arranged between a discharge electrode (7) and a ground electrode (8). The dielectric has a plurality of independent cavities (6) formed therein. The exhaust gas from combustion equipment (1) flows through the interiors of the plurality of independent cavities (6). Thus, in the plasma type exhaust gas cleaning apparatus, the discharge electrode (7) and the ground electrode (8) are securely partitioned by the cavities (6). When a voltage from a high voltage generator (9) is applied to between the discharge electrode (7) and the ground electrode (8), plasma resulting from corona discharges occurs in each individual cavity (6) without arising directly across the discharge electrode (7) and the ground electrode (8). The exhaust gas is thereby cleaned up.
    • 本发明的等离子体废气净化装置包括布置在放电电极(7)和接地电极(8)之间的电介质(5)。 电介质具有形成在其中的多个独立空腔(6)。 来自燃烧设备(1)的废气流过多个独立空腔(6)的内部。 因此,在等离子体型排气净化装置中,放电电极(7)和接地电极(8)被空腔(6)牢固地隔开。 当来自高电压发生器(9)的电压被施加到放电电极(7)和接地电极(8)之间时,由电晕放电产生的等离子体发生在每个单个空腔(6)中,而不会直接穿过放电电极 7)和接地电极(8)。 从而净化废气。