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    • 7. 发明授权
    • Method for recovering metal from etch by-products
    • 从蚀刻副产物中回收金属的方法
    • US06413389B1
    • 2002-07-02
    • US09467295
    • 1999-12-17
    • Hong ShihDanny LuNianci HanLi XuDiana Ma
    • Hong ShihDanny LuNianci HanLi XuDiana Ma
    • C02F1461
    • C22B11/042Y02P10/214
    • A method and assembly for recovering a metal from by-products produced from etching a metal (e.g., platinum, iridium, aluminum, etc.) in a plasma processing chamber. The method includes recovering from the plasma processing chamber a deposit of the by-products containing the metal. The deposit is dissolved in an acid, and the metal is recovered from the acid by inserting a working electrode, a reference electrode, and a counter electrode into the acid and applying a difference in potential between the working and reference electrodes to cause current to flow through the working and counter electrodes and the metal to be removed from the liquid and deposit on the working electrode. The metal is removed from the working electrode to recover the metal. The assembly for recovering the metal from the by-products includes a potentiostat for effecting a difference in potential between the working and reference electrodes and causing current to flow through the working and counter electrodes in response to the difference in potential between the working and reference electrodes.
    • 一种用于从在等离子体处理室中蚀刻金属(例如,铂,铱,铝等)产生的副产物中回收金属的方法和组件。 该方法包括从等离子体处理室回收含有金属的副产物的沉积物。 将沉积物溶解在酸中,通过将工作电极,参比电极和对电极插入酸中并在工作电极和参考电极之间施加电位差以使电流流动从酸中回收金属 通过工作电极和对电极以及从液体中除去的金属沉积在工作电极上。 从工作电极上除去金属以回收金属。 用于从副产物中回收金属的组件包括用于实现工作电极和参考电极之间的电位差的恒电位仪,并且响应于工作电极和参考电极之间的电位差而导致电流流过工作电极和对电极 。
    • 8. 发明授权
    • Wavy and roughened dome in plasma processing reactor
    • 等离子体处理反应堆中波浪和粗糙圆顶
    • US06623595B1
    • 2003-09-23
    • US09536478
    • 2000-03-27
    • Nianci HanHong ShihLi XuYan Ye
    • Nianci HanHong ShihLi XuYan Ye
    • C23F100
    • H01J37/32458C23C16/4404H01J37/321
    • A ceramic dome for in a plasma processing chamber having an RF coil disposed outside of said dome. The interior of the dome is formed with macroscopic grooves, and the grooves are roughened into a microscopic structure. The roughening provides increased adhesion to a residue film deposited on the dome during plasma processing. The macroscopic grooves increase the effective area of the dome and thus decreases the thickness of deposited film. The grooves may be formed by machining a green form of the ceramic material cast prior to sintering. The roughening may be formed by bead blasting the machined green form. Thereafter, the green form is fired to form a sintered ceramic dome.
    • 一种用于等离子体处理室的陶瓷圆顶,其具有设置在所述圆顶外侧的RF线圈。 圆顶的内部形成有宏观的凹槽,并且凹槽被粗糙化成微观结构。 在等离子体处理过程中,粗糙化对沉积在穹顶上的残留膜提供增加的粘合力。 宏观沟槽增加了圆顶的有效面积,从而减小了沉积膜的厚度。 凹槽可以通过在烧结之前加工铸造的陶瓷材料的绿色形成。 粗糙化可以通过喷砂加工的绿色形式来形成。 此后,烧成绿色形状以形成烧结的陶瓷圆顶。