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1.发明授权Variable-frequency type radio-frequency quadrupole accelerator including quadrupole cooling means 失效包括四极冷却装置的可变频率型射频四极加速器
公开(公告)号：US5506472A
公开(公告)日：1996-04-09
申请号：US240319
申请日：1994-05-10
申请人： Junya Ito , Katsumi Tokiguchi , Kensuke Amemiya , Noriyuki Sakudo
发明人： Junya Ito , Katsumi Tokiguchi , Kensuke Amemiya , Noriyuki Sakudo
CPC分类号： H05H7/02
摘要： A secondary coil forming a resonant circuit in cooperation with a quadrupole is composed of conductive tubes and cooled by feeding coolant such as pure water into the tubes which serve as coolant passages. This makes it possible to minimize thermal deformation of the secondary coil when a variable-frequency type radio-frequency quadrupole accelerator is driven with a large amount of power. As a result, variation of the resonant frequency of the resonant circuit, resulting from the deformation of the secondary coil, can be minimized. Consequently, a given ion acceleration ability can be provided. When a coolant passage for use in cooling the primary coil is included and coolant such as pure water is fed into the coolant passage, thermal deformation of the primary coil can be minimized. Thus, impedance matching with the resonant circuit can be maintained on a stable basis. When the secondary coil is made by aligning several unit secondary coils in the axial direction of the quadrupole, the resonant frequency can be varied by mounting or dismounting the unit secondary coils independently.
摘要翻译： 与四极合作形成谐振电路的次级线圈由导电管组成，并通过将诸如纯净水的冷却剂送入用作冷却剂通道的管中来冷却。 这使得当以大量功率驱动可变频率型射频四极加速器时，可以最小化次级线圈的热变形。 结果，由二次线圈的变形引起的谐振电路的谐振频率的变化可以最小化。 因此，可以提供给定的离子加速能力。 当包括用于冷却初级线圈的冷却剂通道时，诸如纯水的冷却剂被供给到冷却剂通道中，可以使初级线圈的热变形最小化。 因此，可以在稳定的基础上保持与谐振电路的阻抗匹配。 当通过在四极杆的轴向对准多个单元次级线圈来制造次级线圈时，可以通过独立地安装或拆卸单元次级线圈来改变谐振频率。
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2.发明授权
公开(公告)号：US5086256A
公开(公告)日：1992-02-04
申请号：US438018
申请日：1989-11-20
IPC分类号： H01J27/02 , H01J37/08 , H01J37/147 , H01J37/317 , H05H7/02 , H05H9/00
CPC分类号： H01J37/3171 , H05H7/02
摘要： An Mev ion implantation apparatus which does not contaminate a sample substrate with heavy metal particles. The apparatus includes an external resonance circuit type RFQ accelerator incluidng undulated quadrupole electrodes and a separate radio frequency resonance circuit for generating a radio frequency high voltage to be supplied to the electrodes. The undulated quadrupole electrodes and at least a part of metallic supports for supporting the electrodes and voltage supplying lines are provided with a surface coating of silicon, silicon doped with an impurity such as boron, phosphorus, or arsenic, or a light element having a mass number of 28 or less, such as carbon.
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公开(公告)号：US5053678A
公开(公告)日：1991-10-01
申请号：US323837
申请日：1989-03-15
IPC分类号： H01J27/18
CPC分类号： H01J27/18
摘要： A microwave ion source suitable for an apparatus which requires ions of an element of high reactivity such as oxygen, fluorine, etc., the microwave ion source being arranged to transmit microwaves between outer and inner conductors of a coaxial line. An ion extraction electrode is formed at least partly of a low magnetic permeability material while an acceleration electrode is formed of a high magnetic permeability material. The acceleration electrode is formed so as to have a structure in which a low magnetic permeability material of a certain thickness is stacked on the high magnetic permeability material at a plasma chamber side and openings of ion exit holes are formed in the portion of the low magnetic permeability material. A permanent magnet constituting a magnetic field generating means is provided to surround the microwave lead-in coaxial line. The direction of magnetization of the permanent magnet is made to coincide with the axial direction of the coaxial line. The end surface of the permanent magnet at the microwave lead-in side is coupled with the periphery of the high magnetic permeability material of the acceleration electrode through another high magnetic permeability material to form a magnetic path. The plasma chamber is formed of a dielectric insulator which transmits microwaves well. It is possible to realize an ion source in which ions can be extracted with a high electric field, and in which a high current ion beam can be extracted for a long time.
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公开(公告)号：US5349196A
公开(公告)日：1994-09-20
申请号：US43794
申请日：1993-04-07
IPC分类号： C23C14/48 , H01J37/30 , H01J37/317 , H01L21/265
CPC分类号： H01J37/3007 , H01J37/3171
摘要： An ion implanting apparatus includes a magnetic quadrupole lens disposed between an ion source and an RFQ accelerator. The magnetic quadrupole lens carries out mass spectrometry of an ion beam extracted from the ion source while converging the ion beam, and reduces the divergence of the ion beam due to the space charge effect as compared to an electrostatic quadrupole lens. The use of the magnetic quadrupole lens makes it possible to utilize to a maximum extent the ion beam extracted from the ion source and to restrict to a minimum the reduction in the current of the ion beam during passage of the ion beam, thereby making it possible to generate a high-energy ion beam having a large current on the order of several tens of milliamperes.
摘要翻译： 离子注入装置包括设置在离子源和RFQ加速器之间的磁性四极透镜。 磁性四极杆透镜在离子束收敛时进行从离子源提取的离子束的质谱，并且与静电四极透镜相比，由于空间电荷效应而减小离子束的发散。 使用磁性四极透镜使得可以最大程度地利用从离子源提取的离子束并且在离子束通过期间限制离子束的电流的最小化，从而使其成为可能 以产生具有大约几十毫安量级的大电流的高能离子束。
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公开(公告)号：US4658143A
公开(公告)日：1987-04-14
申请号：US711824
申请日：1985-03-14
申请人： Katsumi Tokiguchi , Hidemi Koike , Noriyuki Sakudo , Osami Okada , Ken Ninomiya , Susumu Ozasa
发明人： Katsumi Tokiguchi , Hidemi Koike , Noriyuki Sakudo , Osami Okada , Ken Ninomiya , Susumu Ozasa
CPC分类号： H01J37/08 , H01J27/022 , H01J27/18
摘要： An ion source equipped with an ion beam exit slit for extracting ions from plasma generated in feed gas introduced into a discharge chamber, and with gas inlet or inlets for introducing the feed gas into the discharge chamber in close proximity of the ion beam exit slit. Ion extraction can be made stably without any deposit on the ion beam exit slit even when a boron halide is used as the feed gas. The effect of the ion source can be further enhanced by adding oxygen, hydrogen or gas of an oxygen-containing compound to the feed gas, and by using a microwave.
摘要翻译： 离子源配备有用于从引入到放电室的进料气体中产生的等离子体提取离子的离子束出口狭缝，以及用于将进料气体引入离子束出口狭缝附近的放电室的气体入口或入口。 即使使用卤化硼作为原料气体，也可以稳定地进行离子提取，而不会在离子束出口狭缝上沉积。 通过向原料气中加入含氧化合物的氧气，氢气或气体，以及使用微波可以进一步提高离子源的效果。
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公开(公告)号：US4409520A
公开(公告)日：1983-10-11
申请号：US247072
申请日：1981-03-24
IPC分类号： H01J23/36 , H01J27/02 , H01J27/16 , H01J27/18 , H01J37/08 , H01L21/265 , H01J7/46 , H01J19/80
摘要： A microwave discharge ion source according to this invention comprises a microwave generator, a discharge chamber having ridged electrodes, and a waveguide connecting the microwave generator with the discharge chamber. This waveguide consists of a waveguide having no ridged electrode, and a waveguide having ridged electrodes. Further, a vacuum-sealing dielectric plate is disposed at an intermediate position or an end part of the waveguide having no ridged electrode. A space in the waveguide as extends from the vacuum-sealing dielectric plate to the discharge chamber is filled with a dielectric.As a result, the design and fabrication of the vacuum-sealing dielectric plate are facilitated, and a microwave discharge ion source of high performance is provided.
摘要翻译： 根据本发明的微波放电离子源包括微波发生器，具有脊状电极的放电室和将微波发生器与放电室连接的波导。 该波导由不具有脊状电极的波导和具有脊状电极的波导构成。 此外，真空密封电介质板设置在没有脊状电极的波导的中间位置或端部。 从真空密封电介质板延伸到放电室的波导中的空间填充有电介质。 结果，促进了真空密封电介质板的设计和制造，并且提供了高性能的微波放电离子源。
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公开(公告)号：US4801847A
公开(公告)日：1989-01-31
申请号：US763133
申请日：1985-07-29
申请人： Noriyuki Sakudo , Katsumi Tokiguchi , Hidemi Koike , Osami Okada , Norio Saito , Susumu Ozasa
发明人： Noriyuki Sakudo , Katsumi Tokiguchi , Hidemi Koike , Osami Okada , Norio Saito , Susumu Ozasa
CPC分类号： H05H7/02 , H01J37/3007 , H01J37/3171 , H05H7/18 , H05H9/00
摘要： A charged particle accelerator is provided with quadrupole electrodes with surfaces that are opposed to each other and are undulated, and with an external resonance circuit. The external resonance circuit consists of a capacitor formed by the opposing electrodes, a variable capacitor provided in parallel with said capacitor, and a coil. The resonance frequency is variable. A direct current and an alternating current may be applied in a superposed manner to the quadrupole electrodes. The thus constructed accelerator can be employed for an ion implanter to implant a heavy-current ion beam of several hundred KeV to several MeV.
摘要翻译： PCT No.PCT / JP84 / 00557 Sec。 371日期：1985年7月29日第 102（e）日期1985年7月29日PCT 1984年11月22日PCT公布。 公开号WO85 / 02489 日期：1985年6月6日。带电粒子加速器具有四极电极，四极电极具有彼此相对的并且起伏的表面，并具有外部谐振电路。 外部谐振电路包括由相对电极形成的电容器，与所述电容器并联设置的可变电容器和线圈。 共振频率是可变的。 直流电流和交流电可以叠加施加到四极电极。 这样构造的加速器可以用于离子注入机，以将几百KeV的大电流离子束注入几MeV。
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公开(公告)号：US4633138A
公开(公告)日：1986-12-30
申请号：US766393
申请日：1985-08-16
申请人： Katsumi Tokiguchi , Osami Okada , Noriyuki Sakudo , Hidemi Koike
发明人： Katsumi Tokiguchi , Osami Okada , Noriyuki Sakudo , Hidemi Koike
IPC分类号： G21K5/10 , H01J37/317 , H01L21/265 , G21K5/00 , H01J7/24
CPC分类号： H01J37/3171 , G21K5/10
摘要： In order to implant ions uniformly in a plurality of wafers, carriers, on which a plurality of wafers are mounted, are moved along a straight line one after another. An ion implanter comprises a beam sweep width controller for controlling the beam sweep width in such a manner that the area scanned with the ion beam by sweeping it coincides approximately with the shape of the wafers in which ions are to be implanted and a carrier speed controller for controlling the carrier speed, depending on the beam sweep width so that the dose of ions implanted in the wafers is uniform. The beam sweep width controller includes a detector for detecting the width of a wafer in which ions are being implanted in the one direction and a controller for varying the beam sweep width, depending on the width of the wafer thus detected. The carrier speed controller varies the carrier speed inversely proportionally to the width of the wafer thus detected.
摘要翻译： 为了将离子均匀地注入到多个晶片中，其上安装有多个晶片的载体沿着直线一个接一个地移动。 离子注入机包括用于以这样一种方式控制光束扫描宽度的光束扫描宽度控制器，其中通过扫描其被离子束扫描的区域大致与离子将被注入的晶片的形状重合，并且载波速度控制器 用于根据光束扫描宽度控制载体速度，使得植入晶片中的离子的剂量是均匀的。 光束扫描宽度控制器包括检测器，用于检测其中沿一个方向注入离子的晶片的宽度，以及用于根据检测到的晶片的宽度改变光束扫描宽度的控制器。 载波速度控制器将载波速度与所检测的晶片的宽度成反比地变化。
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公开(公告)号：US4393333A
公开(公告)日：1983-07-12
申请号：US215064
申请日：1980-12-10
摘要： A microwave plasma ion source according to the present invention is designed such that a microwave electric field and a magnetic field are applied to a discharge gas introduced into a discharge region, to form plasma, from which ions are extracted. The above magnetic field is formed by means of an electromagnet provided on the low-voltage side of ion extraction electrodes and a high-permeability member provided in that section which is on the side of a waveguide and which permits the microwaves to be propagated freely.
摘要翻译： 根据本发明的微波等离子体离子源被设计成使微波电场和磁场被施加到引入到放电区域的放电气体，形成从其中提取离子的等离子体。 上述磁场通过设置在离子提取电极的低压侧的电磁体和设置在该部分中的位于波导侧的高导磁性部件形成，并允许微波自由传播。
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公开(公告)号：US4316090A
公开(公告)日：1982-02-16
申请号：US154824
申请日：1980-05-30
摘要： A microwave plasma ion source according to this invention is characterized by the construction of the extracting electrode in contact with the discharge chamber. The electrode is divided into a part substantially exposed to a plasma and a remaining part which is not exposed to the plasma. Moreover, both these parts are held in a state in which they are electrically connected with each other.As a result, very little P or As deposits on the surface of the electrode, and a stable high-current ion beam can be supplied over a long period of time.
摘要翻译： 根据本发明的微波等离子体离子源的特征在于与放电室接触的提取电极的结构。 电极被分成基本上暴露于等离子体的部分和不暴露于等离子体的剩余部分。 此外，这两个部件保持在彼此电连接的状态。 结果，可以在长时间内供给在电极表面上沉积很少的P或As和稳定的高电流离子束。
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