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    • 1. 发明授权
    • Adhesive particle shielding
    • 粘合剂颗粒屏蔽
    • US07473301B2
    • 2009-01-06
    • US10245218
    • 2002-09-17
    • Leonard Elliott KlebanoffDaniel John RaderChristopher WaltonJames Folta
    • Leonard Elliott KlebanoffDaniel John RaderChristopher WaltonJames Folta
    • B01D45/08
    • H01L21/67017H01L21/67132Y10S55/14
    • An efficient device for capturing fast moving particles has an adhesive particle shield that includes (i) a mounting panel and (ii) a film that is attached to the mounting panel wherein the outer surface of the film has an adhesive coating disposed thereon to capture particles contacting the outer surface. The shield can be employed to maintain a substantially particle free environment such as in photolithographic systems having critical surfaces, such as wafers, masks, and optics and in the tools used to make these components, that are sensitive to particle contamination. The shield can be portable to be positioned in hard-to-reach areas of a photolithography machine. The adhesive particle shield can incorporate cooling means to attract particles via the thermophoresis effect.
    • 用于捕获快速移动颗粒的有效装置具有粘合剂颗粒屏蔽,其包括(i)安装板和(ii)附接到安装板的膜,其中膜的外表面具有设置在其上的粘合剂涂层以捕获颗粒 接触外表面。 可以使用屏蔽来保持基本上无颗粒的环境,例如具有关键表面的光刻系统,例如晶片,掩模和光学器件,以及用于制造对颗粒污染敏感的这些部件的工具。 屏蔽件可以便携式地定位在光刻机的难以到达的区域中。 粘合剂颗粒屏蔽可以包含冷却装置以通过热泳效应吸引颗粒。
    • 4. 发明授权
    • Electrostatically screened, voltage-controlled electrostatic chuck
    • 静电放电,电压控制静电吸盘
    • US06169652A
    • 2001-01-02
    • US09268166
    • 1999-03-12
    • Leonard Elliott Klebanoff
    • Leonard Elliott Klebanoff
    • H02N1300
    • G03F7/70708G03F7/707G03F7/70916H01L21/6833H02N13/00
    • Employing an electrostatically screened, voltage-controlled electrostatic chuck particularly suited for holding wafers and masks in sub-atmospheric operations will significantly reduce the likelihood of contaminant deposition on the substrates. The electrostatic chuck includes (1) an insulator block having a outer perimeter and a planar surface adapted to support the substrate and comprising at least one electrode (typically a pair of electrodes that are embedded in the insulator block), (2) a source of voltage that is connected to the at least one electrode, (3) a support base to which the insulator block is attached, and (4) a primary electrostatic shield ring member that is positioned around the outer perimeter of the insulator block. The electrostatic chuck permits control of the voltage of the lithographic substrate; in addition, it provides electrostatic shielding of the stray electric fields issuing from the sides of the electrostatic chuck. The shielding effectively prevents electric fields from wrapping around to the upper or front surface of the substrate, thereby eliminating electrostatic particle deposition.
    • 采用静电屏蔽的电压控制静电卡盘,特别适用于在低于大气压的操作中保持晶圆和掩模将显着降低污染物沉积在基板上的可能性。 静电卡盘包括(1)绝缘体块,其具有外周边和平坦表面,该平坦表面适于支撑基底并且包括至少一个电极(通常为嵌入绝缘体块中的一对电极),(2) 连接到所述至少一个电极的电压,(3)安装所述绝缘体块的支撑基座,以及(4)围绕所述绝缘体块的外周定位的主静电屏蔽环构件。 静电卡盘可以控制平版印刷基板的电压; 此外,它提供从静电卡盘的侧面发出的杂散电场的静电屏蔽。 屏蔽有效地防止电场缠绕到基板的上表面或前表面,从而消除静电颗粒沉积。