Ion implantation ion source, system and method

    公开(公告)号:US20030230986A1

    公开(公告)日:2003-12-18

    申请号:US10170512

    申请日:2002-06-12

    Abstract: Various aspects of the invention provide improved approaches and methods for efficiently: Vaporizing decaborane and other heat-sensitive materials via a novel vaporizer and vapor delivery system; Delivering a controlled, low-pressure drop flow of vapors, e.g. decaborane, into the ion source; Ionizing the decaborane into a large fraction of B10Hxnull; Preventing thermal dissociation of decaborane; Limiting charge-exchange and low energy electron-induced fragmentation of B10Hxnull; Operating the ion source without an arc plasma, which can improve the emittance properties and the purity of the beam; Operating the ion source without use of a strong applied magnetic field, which can improve the emittance properties of the beam; Using a novel approach to produce electron impact ionizations without the use of an arc discharge, by incorporation of an externally generated, broad directional electron beam which is aligned to pass through the ionization chamber to a thermally isolated beam dump;. Providing production-worthy dosage rates of boron dopant at the wafer; Providing a hardware design that enables use also with other dopants, especially using novel hydride, dimer-containing, and indium- or antimony-containing temperature-sensitive starting materials, to further enhance the economics of use and production worthiness of the novel source design and in many cases, reducing the presence of contaminants; Matching the ion optics requirements of the installed base of ion implanters in the field; Eliminating the ion source as a source of transition metals contamination, by using an external and preferably remote cathode and providing an ionization chamber and extraction aperture fabricated of non-contaminating material, e.g. graphite, silicon carbide or aluminum; Enabling retrofit of the new ion source into the ion source design space of existing Bernas source-based ion implanters and the like or otherwise enabling compatibility with other ion source designs; Using a control system in retrofit installations that enables retention of the installed operator interface and control techniques with which operators are already familiar; Enabling convenient handling and replenishment of the solid within the vaporizer without substantial down-time of the implanter; Providing internal adjustment and control techniques that enable, with a single design, matching the dimensions and intensity of the zone in which ionization occurs to the beam line of the implanter and the requirement of the process at hand; Providing novel approaches, starting materials and conditions of operation that enable the making of future generations of semiconductor devices and especially CMOS source/drains and extensions, and doping of silicon gates.

    ION BEAM IRRADIATION METHOD AND ION BEAM IRRADIATION APPARATUS

    公开(公告)号:US20240331973A1

    公开(公告)日:2024-10-03

    申请号:US18611098

    申请日:2024-03-20

    CPC classification number: H01J37/3171 H01J2237/31705

    Abstract: An ion beam irradiation method includes irradiating, with an ion beam having a first irradiation energy, a rear member located behind an irradiation position in a state in which a target is retracted from the irradiation position, collecting particles generated by irradiating the rear member with the ion beam having the first irradiation energy by conveying a collecting member in a transport direction in front of the rear member, and irradiating, with an ion beam having a second irradiation energy, the target at the irradiation position.

    HIGH THROUGHPUT COOLED ION IMPLANTATION SYSTEM AND METHOD
    67.
    发明申请
    HIGH THROUGHPUT COOLED ION IMPLANTATION SYSTEM AND METHOD 有权
    高通量冷却离子植入系统和方法

    公开(公告)号:US20170040141A1

    公开(公告)日:2017-02-09

    申请号:US14817893

    申请日:2015-08-04

    Abstract: An ion implantation system has a process chamber having a process environment, and an ion implantation apparatus configured to implant ions into a workpiece supported by a chuck within the process chamber. A load lock chamber isolates the process (vacuum) environment from an atmospheric environment, wherein a load lock workpiece support supports the workpiece therein. An isolation chamber is coupled to the process chamber with a pre-implant cooling environment defined therein. An isolation gate valve selectively isolates the pre-implant cooling environment from the process environment wherein the isolation chamber comprises a pre-implant cooling workpiece support for supporting and cooling the workpiece. The isolation gate valve is the only access path for the workpiece to enter and exit the isolation chamber. A pressurized gas selectively pressurizes the pre-implant cooling environment to a pre-implant cooling pressure that is greater than the process pressure for expeditious cooling of the workpiece. A workpiece transfer arm transfer the workpiece between the load lock chamber, isolation chamber, and chuck. A controller controls the workpiece transfer arm selectively cools the workpiece to a pre-implant cooling temperature in the isolation chamber at the pre-implant cooling pressure via a control of the isolation gate valve, pre-implant cooling workpiece support, and pressurized gas source.

    Abstract translation: 离子注入系统具有处理室,其具有工艺环境,以及离子注入装置,被配置为将离子注入到由处理室内的卡盘支撑的工件中。 加载锁定室将工艺(真空)环境与大气环境隔离,其中负载锁定工件支撑件支撑其中的工件。 隔离室通过在其中限定的植入前冷却环境耦合到处理室。 隔离闸阀选择性地将植入前冷却环境与过程环境隔离,其中隔离室包括用于支撑和冷却工件的植入物前冷却工件支撑件。 隔离闸阀是工件进出隔离室的唯一进入路径。 加压气体选择性地将植入物前冷却环境加压到大于工艺压力的植入前冷却压力,以便于快速冷却工件。 工件传送臂在加载锁定室,隔离室和卡盘之间传送工件。 控制器控制工件传送臂通过隔离闸阀,预植入物冷却工件支撑件和加压气体源的控制,以预植入物冷却压力选择性地将工件冷却至隔离室中的植入前冷却温度。

    Ion generator and ion generating method
    68.
    发明授权
    Ion generator and ion generating method 有权
    离子发生器和离子发生方法

    公开(公告)号:US09318298B2

    公开(公告)日:2016-04-19

    申请号:US14536946

    申请日:2014-11-10

    Inventor: Masateru Sato

    CPC classification number: H01J27/08 H01J37/08 H01J37/3171 H01J2237/31705

    Abstract: An ion generator is provided with: an arc chamber that is at least partially made up of a material containing carbon; a thermal electron emitter that emits thermal electrons into the arc chamber; and a gas introducer that introduces a source gas and a compound gas into the arc chamber. The source gas to be introduced into the arc chamber contains a halide gas, and the compound gas to be introduced into the arc chamber contains a compound having carbon atoms and hydrogen atoms.

    Abstract translation: 离子发生器具有:至少部分由含碳材料组成的电弧室; 将热电子发射到电弧室中的热电子发射体; 以及将源气体和复合气体引入电弧室的气体导入器。 被引入电弧室的源气体含有卤化物气体,导入电弧室的化合物气体含有具有碳原子和氢原子的化合物。

    METHOD FOR INJECTING DOPANT INTO SUBSTRATE TO BE PROCESSED, AND PLASMA DOPING APPARATUS
    70.
    发明申请
    METHOD FOR INJECTING DOPANT INTO SUBSTRATE TO BE PROCESSED, AND PLASMA DOPING APPARATUS 审中-公开
    将D子注入待处理的基材的方法和等离子体喷涂装置

    公开(公告)号:US20150132929A1

    公开(公告)日:2015-05-14

    申请号:US14397953

    申请日:2013-04-05

    Abstract: Provided is a method for injecting a dopant into a substrate to be processed. A method in one embodiment of the present invention includes: (a) a step for preparing, in a processing container, a substrate to be processed; and (b) a step for injecting a dopant into the substrate by supplying a doping gas containing AsH3, an inert gas, and H2 gas to the inside of the processing container, and applying plasma excitation energy to the inside of the processing container. In the step of injecting the dopant, the ratio of hydrogen partial pressure to the gas total pressure in the processing container is set within the range of 0.0015-0.003.

    Abstract translation: 提供了将掺杂剂注入待处理的基板中的方法。 本发明的一个实施方案中的方法包括:(a)在处理容器中制备待处理的基材的步骤; 和(b)通过向处理容器的内部供给含有AsH 3,惰性气体和H 2气体的掺杂气体,并向处理容器的内部施加等离子体激发能量,将掺杂剂注入基板的工序。 在注入掺杂剂的步骤中,处理容器中的氢分压与气体总压的比例设定在0.0015-0.003的范围内。

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