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    • 3. 发明授权
    • Electrostatic chuck with fluid flow regulator
    • 带流体流量调节器的静电吸盘
    • US5883778A
    • 1999-03-16
    • US503790
    • 1995-07-18
    • Semyon SherstinskyJohn F. CameronShamouil ShamouilianManoocher BirangAlfred MakSimon W. TamRobert E. Ryan
    • Semyon SherstinskyJohn F. CameronShamouil ShamouilianManoocher BirangAlfred MakSimon W. TamRobert E. Ryan
    • B23Q3/15C23C16/458H01L21/00H01L21/683H02N13/00
    • H02N13/00C23C16/4586H01L21/67109H01L21/6831H01L21/6833Y10T279/23
    • An electrostatic chuck 20 of the present invention is capable of maintaining substantially uniform temperatures across a substrate 30. The chuck 20 comprises an electrostatic member 35 that includes (i) an insulator 45 covering an electrode 40, (ii) a substantially planar and conformal contact surface 50 capable of conforming to a substrate 30, and (iii) conduits 105 terminating at the contact surface 50 for providing heat transfer fluid to the contact surface 50. Application of a voltage to the electrode 40 of the electrostatic member 35 electrostatically holds the substrate 30 on the conformal contact surface 50 to define an outer periphery 110 having (1) leaking portions 115 where heat transfer fluid leaks out, and (2) sealed portions 130 where heat transfer fluid substantially does not leak out. A fluid flow regulator 135 is provided for flowing heat transfer fluid at different flow rates through the conduits 105 in the electrostatic member 35 to provide (i) first flow rates of heat transfer fluid through the conduits 105 adjacent to the sealed portions 130 of the outer periphery 110 of the electrostatic member 35, and (ii) second flow rates of heat transfer fluid through the conduits 105 adjacent to the leaking portions 115, the second flow rates being higher than the first flow rates, to maintain substantially uniform temperatures across the substrate 30 held on the chuck 20.
    • 本发明的静电卡盘20能够在基板30上保持基本均匀的温度。卡盘20包括静电部件35,静电部件35包括(i)覆盖电极40的绝缘体45,(ii)基本上平面和保形接触 能够与衬底30相符的表面50,以及(iii)终止于接触表面50处的导管105,用于将热传递流体提供给接触表面50.施加电压到静电构件35的电极40,静电地保持衬底 30,以形成具有(1)泄漏部分115(其中传热流体泄漏)的外周110,以及(2)传热流体基本上不会泄漏的密封部分130。 提供流体流量调节器135,用于使不同流速的传热流体流过静电构件35中的管道105,以提供(i)传热流体通过与外部的密封部分130相邻的导管105的第一流量 静电构件35的周边110,以及(ii)通过与泄漏部分115相邻的导管105的传热流体的第二流量,第二流速高于第一流速,以保持基本上均匀的温度 30夹在卡盘20上。
    • 6. 发明授权
    • Electrostatic chuck with conformal insulator film
    • 带保形绝缘膜的静电吸盘
    • US5745331A
    • 1998-04-28
    • US381786
    • 1995-01-31
    • Shamouil ShamouilianSasson SomekhHyman J. LevinsteinManoocher BirangSemyon SherstinskyJohn F. Cameron
    • Shamouil ShamouilianSasson SomekhHyman J. LevinsteinManoocher BirangSemyon SherstinskyJohn F. Cameron
    • B23Q3/15H01L21/683H02N13/00
    • H01L21/6831H01L21/6833H02N13/00
    • An electrostatic chuck (20) for holding a substrate (75) comprises (i) a base (80) having an upper surface (95) with grooves (85) therein, the grooves (85) sized and distributed for holding coolant for cooling a substrate (75), and (ii) a substantially continuous insulator film (45) conformal to the grooves (85) on upper surface (95) of the base (80). The base (80) can be electrically conductive and capable of serving as the electrode (50) of the chuck (20), or the electrode (50) can be embedded in the insulator film (45). The insulator film (45) has a dielectric breakdown strength sufficiently high that when a substrate (75) placed on the chuck (20) and electrically biased with respect to the electrode (50), electrostatic charge accumulates in the substrate (75) and in the electrode (50) forming an electrostatic force that attracts and holds the substrate (75) to the chuck (20). Preferably the chuck (20) is fabricated using a pressure forming process, and more preferably using a pressure differential process.
    • 用于保持基板(75)的静电卡盘(20)包括(i)具有在其中具有凹槽(85)的上表面(95)的基部(80),所述凹槽(85)的尺寸和分布以保持用于冷却的冷却剂 衬底(75),和(ii)与基座(80)的上表面(95)上的凹槽(85)共形的基本上连续的绝缘膜(45)。 基座(80)可以是导电的并且能够用作卡盘(20)的电极(50),或者电极(50)可以嵌入绝缘膜(45)中。 绝缘体膜(45)具有足够高的绝缘击穿强度,当放置在卡盘(20)上并相对于电极(50)电偏置的基板(75)时,静电电荷积聚在基板(75)中 所述电极(50)形成吸引并保持所述基板(75)到所述卡盘(20)的静电力。 优选地,使用压力成形方法制造卡盘(20),更优选使用压差法。
    • 10. 发明授权
    • Clamping ring apparatus for processing semiconductor wafers
    • 用于处理半导体晶圆的夹紧环装置
    • US5316278A
    • 1994-05-31
    • US947212
    • 1992-09-18
    • Semyon SherstinskyMei ChangCharles C. HarrisAlfred MakJames F. RobertsSimon W. TamWen T. Chang
    • Semyon SherstinskyMei ChangCharles C. HarrisAlfred MakJames F. RobertsSimon W. TamWen T. Chang
    • H01L21/687B25B1/00
    • H01L21/68721Y10S269/903
    • An improved clamping ring apparatus is disclosed comprising a clamping ring means for yieldably engaging a generally circular semiconductor wafer to peripherally clamp the wafer to a support pedestal to provide a peripheral seal between the wafer and the surface of the pedestal facing the wafer, adjacent the generally circular end edge of the wafer by providing a central generally circular opening in the clamping ring and a series of slots which radially extend outwardly from the central opening in the clamping ring means to thereby divide the inner portion of the clamping ring means into a series of yieldable fingers inwardly extending toward the central opening in the clamping ring means.In one embodiment, the sidewalls of the slots are slanted with respect to the planar surface of the clamping ring means at an angle sufficient, with respect to the thickness of the clamping ring means and the width of the slot,, to prevent a ray or a particle from a plasma, traveling in a direction perpendicular to the plane of the surface of the clamping ring means from striking surfaces underlying the clamping ring means, through the slot.
    • 公开了一种改进的夹紧环装置,其包括夹紧环装置,用于可屈服地接合大致圆形的半导体晶片以将晶片周边夹持到支撑基座,以在晶片与面对晶片的基座的表面之间提供周边密封, 通过在夹紧环中提供中心大致圆形的开口,以及从夹紧环装置中的中心开口径向向外延伸的一系列槽,从而将夹紧环装置的内部分成一系列 可伸缩的手指向内延伸朝向夹紧环装置中的中心开口。 在一个实施例中,槽的侧壁相对于夹紧环装置的平坦表面以相对于夹紧环装置的厚度和槽的宽度足够的角度倾斜以防止光线或 来自等离子体的颗粒通过狭槽从垂直于夹紧环装置的表面的平面的方向通过夹紧环装置下方的冲击表面行进。