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    • 8. 发明申请
    • PLASMA ETCHING SYSTEMS AND METHODS WITH SECONDARY PLASMA INJECTION
    • 等离子体蚀刻系统和方法与二次等离子体注射
    • US20170062184A1
    • 2017-03-02
    • US14838086
    • 2015-08-27
    • APPLIED MATERIALS, INC.
    • Toan Q. TranSoonam ParkZilu WengDmitry Lubomirsky
    • H01J37/32
    • H01J37/3244H01J37/32082H01J37/32357H01J37/32532H01J37/32715
    • An apparatus for plasma processing includes a first plasma source, a first planar electrode, a gas distribution device, a plasma blocking screen and a workpiece chuck. The first plasma source produces first plasma products that pass, away from the first plasma source, through first apertures in the first planar electrode. The first plasma products continue through second apertures in the gas distribution device. The plasma blocking screen includes a third plate with fourth apertures, and faces the gas distribution device such that the first plasma products pass through the plurality of fourth apertures. The workpiece chuck faces the second side of the plasma blocking screen, defining a process chamber between the plasma blocking screen and the workpiece chuck. The fourth apertures are of a sufficiently small size to block a plasma generated in the process chamber from reaching the gas distribution device.
    • 一种等离子体处理装置,包括第一等离子体源,第一平面电极,气体分配装置,等离子体阻挡屏和工件卡盘。 第一等离子体源产生通过第一等离子体源穿过第一平面电极中的第一孔的第一等离子体产物。 第一等离子体产物继续通过气体分配装置中的第二孔。 等离子体阻挡屏幕包括具有第四孔的第三板,面向气体分配装置,使得第一等离子体产物通过多个第四孔。 工件卡盘面对等离子体阻挡屏幕的第二侧,在等离子体阻挡屏幕和工件卡盘之间限定一个处理室。 第四孔具有足够小的尺寸以阻挡在处理室中产生的等离子体到达气体分配装置。