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    • 6. 发明申请
    • WAFER HOLDER ASSEMBLY
    • 晶片夹持器组件
    • WO0113410A9
    • 2001-08-16
    • PCT/US0022677
    • 2000-08-17
    • IBIS TECHNOLOGY INCBLAKE JULIAN GSMICK THEODORE HANDREWS ROBERT SCORDTS BERNHARD F IIIRYDING GEOFFREY
    • BLAKE JULIAN GSMICK THEODORE HANDREWS ROBERT SCORDTS BERNHARD F IIIRYDING GEOFFREY
    • H01J37/317H01L21/265H01L21/683H01L21/687H01L21/00
    • H01L21/687
    • A wafer holder assembly for use in an ion implantation system includes at least one base structural member attachable to an end-station within the implantation system. At least a wafer-holding member, formed of an electrically conductive refractive material, is coupled to the base member and is adapted to hold a wafer in the path of an ion beam within the ion implantation system. The wafer holder assembly can include first and second main structural members from which first and second wafer-holding arms extend. The first arm is secured to the main structural members by a graphite retaining member. The second arm is pivotally biased to a wafer-hold position by a graphite bias member. This arrangement provides a conductive path from the wafer to the assembly for inhibiting electrical discharges form the wafer during the ion implantation process. The wafer-contacting pins at the distal end of the arms can be formed form silicon or graphite. The pins can be coated, for example, with titanium nitride to enhance electrical contact with the wafer and to provide an abrasion resistant surface. The pins can have a limited profile to minimize the amount of pin material proximate the wafer for reducing the likelihood of electrical arcing from the wafer to the pin.
    • 用于离子注入系统的晶片保持器组件包括至少一个可连接到植入系统内的终端站的基座结构构件。 由导电折射材料形成的至少一个晶片保持构件联接到基座构件并且适于将晶片保持在离子注入系统内的离子束的路径中。 晶片保持器组件可以包括第一和第二主要结构部件,第一和第二晶片保持臂从该主要结构部件延伸。 第一臂通过石墨保持构件固定到主要结构构件。 第二臂通过石墨偏置构件枢转地偏置到晶片保持位置。 该布置提供从晶片到组件的导电路径,用于在离子注入过程期间抑制从晶片的放电。 臂的远端处的晶片接触销可以由硅或石墨形成。 例如,可以用氮化钛涂覆引脚以增强与晶片的电接触并提供耐磨表面。 这些引脚可以具有有限的轮廓以最小化邻近晶片的引脚材料的量,以降低从晶片到引脚的电弧的可能性。