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    • 5. 发明申请
    • GAS DISTRIBUTION SHOWERHEAD FOR INDUCTIVELY COUPLED PLASMA ETCH REACTOR
    • 用于电感耦合等离子体蚀刻反应器的气体分布式淋洗器
    • US20120309204A1
    • 2012-12-06
    • US13118899
    • 2011-05-31
    • Michael KangAlex PatersonIan J. Kenworthy
    • Michael KangAlex PatersonIan J. Kenworthy
    • H01L21/3065
    • H01L21/30604B05B1/185B05D1/62C23C16/455C23C16/45561C23C16/505C23C16/507H01J37/3211H01J37/3244H01J2237/3341H01L21/30655H01L21/67069
    • A two piece ceramic showerhead includes upper and lower plates which deliver process gas to an inductively coupled plasma processing chamber. The upper plate overlies the lower plate and includes radially extending gas passages which extend inwardly from an outer periphery of the upper plate, axially extending gas passages in fluid communication with the radially extending gas passages and an annular recess forming a plenum between the upper and lower plates. The lower plate includes axially extending gas holes in fluid communication with the plenum. The upper plate can include eight radially extending gas passages evenly spaced around the periphery of the upper plate and the lower plate can include inner and outer rows of gas holes. The two piece ceramic showerhead forms a dielectric window of the chamber through which radiofrequency energy generated by an antenna is coupled into the chamber. A gas delivery system delivers process gas to a plenum between the upper and lower plates having a gas volume of no greater than 500 cm3. The gas holes in the lower plate extend between the plenum and a plasma exposed yttria coated surface of the lower plate. The gas delivery system is operable to supply an etching gas and a deposition gas into the processing chamber such that the etching gas in the plenum can be replaced with the deposition gas within about 200 milliseconds and vice versa.
    • 两件式陶瓷喷头包括将处理气体输送到电感耦合等离子体处理室的上板和下板。 上板覆盖在下板上,并且包括从上板的外周向内延伸的径向延伸的气体通道,与径向延伸的气体通道流体连通的轴向延伸的气体通道和在上部和下部之间形成增压室的环形凹槽 盘子 下板包括与增压室流体连通的轴向延伸的气孔。 上板可包括围绕上板周边均匀分布的八个径向延伸的气体通道,下板可包括内排和外排气孔。 两件式陶瓷喷头形成室的电介质窗口,通过天线产生的射频能量耦合到腔室中。 气体输送系统将处理气体输送到具有不大于500cm 3的气体体积的上板和下板之间的增压室。 下板中的气孔在气室和下板​​的等离子体暴露的氧化钇涂层表面之间延伸。 气体输送系统可操作以将蚀刻气体和沉积气体供应到处理室中,使得气室中的蚀刻气体可以在大约200毫秒内被沉积气体代替,反之亦然。
    • 8. 发明授权
    • Gas distribution showerhead for inductively coupled plasma etch reactor
    • 用于电感耦合等离子体蚀刻反应器的气体分配喷头
    • US08562785B2
    • 2013-10-22
    • US13118899
    • 2011-05-31
    • Michael KangAlex PatersonIan J. Kenworthy
    • Michael KangAlex PatersonIan J. Kenworthy
    • C23C16/505C23C16/507C23C16/455C23F1/00H01L21/306C23C16/06C23C16/22
    • H01L21/30604B05B1/185B05D1/62C23C16/455C23C16/45561C23C16/505C23C16/507H01J37/3211H01J37/3244H01J2237/3341H01L21/30655H01L21/67069
    • A two piece ceramic showerhead includes upper and lower plates which deliver process gas to an inductively coupled plasma processing chamber. The upper plate overlies the lower plate and includes radially extending gas passages which extend inwardly from an outer periphery of the upper plate, axially extending gas passages in fluid communication with the radially extending gas passages and an annular recess forming a plenum between the upper and lower plates. The lower plate includes axially extending gas holes in fluid communication with the plenum. The upper plate can include eight radially extending gas passages evenly spaced around the periphery of the upper plate and the lower plate can include inner and outer rows of gas holes. The two piece ceramic showerhead forms a dielectric window of the chamber through which radiofrequency energy generated by an antenna is coupled into the chamber. A gas delivery system delivers process gas to a plenum between the upper and lower plates having a gas volume of no greater than 500 cm3. The gas holes in the lower plate extend between the plenum and a plasma exposed yttria coated surface of the lower plate. The gas delivery system is operable to supply an etching gas and a deposition gas into the processing chamber such that the etching gas in the plenum can be replaced with the deposition gas within about 200 milliseconds and vice versa.
    • 两件式陶瓷喷头包括将处理气体输送到电感耦合等离子体处理室的上板和下板。 上板覆盖在下板上,并且包括从上板的外周向内延伸的径向延伸的气体通道,与径向延伸的气体通道流体连通的轴向延伸的气体通道和在上部和下部之间形成增压室的环形凹槽 盘子 下板包括与增压室流体连通的轴向延伸的气孔。 上板可包括围绕上板周边均匀分布的八个径向延伸的气体通道,下板可包括内排和外排气孔。 两件式陶瓷喷头形成室的电介质窗口,通过天线产生的射频能量耦合到腔室中。 气体输送系统将处理气体输送到具有不大于500cm 3的气体体积的上板和下板之间的增压室。 下板中的气孔在气室和下板​​的等离子体暴露的氧化钇涂层表面之间延伸。 气体输送系统可操作以将蚀刻气体和沉积气体供应到处理室中,使得气室中的蚀刻气体可以在大约200毫秒内被沉积气体代替,反之亦然。