Method for etching a substrate and a device formed using the method
    22.
    发明授权
    Method for etching a substrate and a device formed using the method 有权
    用于蚀刻基板的方法和使用该方法形成的器件

    公开(公告)号:US07425512B2

    公开(公告)日:2008-09-16

    申请号:US10721932

    申请日:2003-11-25

    IPC分类号: H01L21/302

    摘要: The present invention provides a method for etching a substrate, a method for forming an integrated circuit, an integrated circuit formed using the method, and an integrated circuit. The method for etching a substrate includes, among other steps, providing a substrate 140 having an aluminum oxide etch stop layer 130 located thereunder, and then etching an opening 150, 155, in the substrate 140 using an etchant comprising carbon oxide, a fluorocarbon, an etch rate modulator, and an inert carrier gas, wherein a flow rate of the carbon oxide is greater than about 80 sccm and the etchant is selective to the aluminum oxide etch stop layer 130. The aluminum oxide etch stop layer may also be used in the back-end of advanced CMOS processes as a via etch stop layer.

    摘要翻译: 本发明提供了蚀刻基板的方法,集成电路的形成方法,使用该方法形成的集成电路和集成电路。 除了其他步骤之外,用于蚀刻衬底的方法包括提供具有位于其下方的氧化铝蚀刻停止层130的衬底140,然后使用包含碳氧化物,碳氟化合物的蚀刻剂在衬底140中蚀刻开口150,155, 蚀刻速率调制器和惰性载气,其中碳氧化物的流速大于约80sccm,并且蚀刻剂对氧化铝蚀刻停止层130是选择性的。 氧化铝蚀刻停止层也可用作先进CMOS工艺的后端作为通孔蚀刻停止层。

    Method for forming ferroelectric memory capacitor
    23.
    发明授权
    Method for forming ferroelectric memory capacitor 有权
    形成铁电存储电容器的方法

    公开(公告)号:US07250349B2

    公开(公告)日:2007-07-31

    申请号:US10610498

    申请日:2003-06-30

    摘要: A ferroelectric memory capacitor is formed by forming a barrier layer, a first metal layer, a ferroelectric layer, a second metal layer, and a hard mask layer, on dielectric layer (70). Using the patterned hard mask layer (255), the layers are etched to form an etched barrier layer (205), and etched first metal layer (215), and etched ferroelectric layer (225), and etched second metal layers (235, 245). The etched layers form a ferroelectric memory capacitor (270) with sidewalls that form an angle with the plane of the upper surface of the dielectric layer (70) between 78° and 88°. The processes used to etch the layers are plasma processes performed at temperatures between 200° C. and 500° C.

    摘要翻译: 在电介质层(70)上形成阻挡层,第一金属层,铁电体层,第二金属层和硬掩模层,形成铁电存储电容器。 使用图案化的硬掩模层(255),蚀刻这些层以形成蚀刻的阻挡层(205),蚀刻第一金属层(215)和蚀刻铁电层(225),并蚀刻第二金属层 )。 蚀刻层形成具有与电介质层(70)的上表面的平面形成角度为78°至88°的侧壁的铁电存储电容器(270)。 用于蚀刻层的工艺是在200℃和500℃之间的温度下进行的等离子体处理。

    Compound semiconductors and a method for thin film growth
    26.
    发明授权
    Compound semiconductors and a method for thin film growth 失效
    化合物半导体和薄膜生长方法

    公开(公告)号:US5625204A

    公开(公告)日:1997-04-29

    申请号:US480722

    申请日:1995-06-07

    摘要: A molecular beam epitaxy (MBE) system (10) is provided to grow thin film, epitaxy layers (44, 46, 48, 50) on compound semiconductor substrates (40). A mass spectrometer detector (95) is used to monitor and control the flux from selected sources (21, 23, 25, 27) within the MBE system (10). A uniform layer of indium gallium arsenide (46, 50) may be grown on a semiconductor substrate (40) by controlling the indium flux with respect to substrate (40) temperature and time. An epitaxy layer (46) of indium gallium arsenide with uniform mole fraction concentration and reduced lattice strain is produced.

    摘要翻译: 提供分子束外延(MBE)系统(10)以在化合物半导体衬底(40)上生长薄膜,外延层(44,46,48,50)。 质谱仪检测器(95)用于监测和控制来自MBE系统(10)内的所选源(21,23,25,27)的通量。 通过控制相对于衬底(40)的铟通量的温度和时间,可以在半导体衬底(40)上生长均匀的砷化铟镓(46,50)。 产生具有均匀的摩尔分数浓度和减小的晶格应变的砷化铟镓的外延层(46)。

    Compound semiconductors and a method for thin film growth
    27.
    发明授权
    Compound semiconductors and a method for thin film growth 失效
    化合物半导体和薄膜生长方法

    公开(公告)号:US5490880A

    公开(公告)日:1996-02-13

    申请号:US304985

    申请日:1994-12-01

    摘要: A molecular beam epitaxy (MBE) system (10) is provided to grow thin film, epitaxy layers (44, 46, 48, 50) on compound semiconductor substrates (40). A mass spectrometer detector (95) is used to monitor and control the flux from selected sources (21, 23, 25, 27) within the MBE system (10). A uniform layer of indium gallium arsenide (46, 50) may be grown on a semiconductor substrate (40) by controlling the indium flux with respect to substrate (40) temperature and time. An epitaxy layer (46) of indium gallium arsenide with uniform mole fraction concentration and reduced lattice strain is produced.

    摘要翻译: 提供分子束外延(MBE)系统(10)以在化合物半导体衬底(40)上生长薄膜,外延层(44,46,48,50)。 质谱仪检测器(95)用于监测和控制来自MBE系统(10)内的所选源(21,23,25,27)的通量。 通过控制相对于衬底(40)的铟通量的温度和时间,可以在半导体衬底(40)上生长均匀的砷化镓镓(46,50)。 产生具有均匀的摩尔分数浓度和减小的晶格应变的砷化铟镓的外延层(46)。

    Method for controlling thin film growth of compound semiconductors using
mass spectrometer detectors
    28.
    发明授权
    Method for controlling thin film growth of compound semiconductors using mass spectrometer detectors 失效
    使用质谱仪检测器控制化合物半导体薄膜生长的方法

    公开(公告)号:US5400739A

    公开(公告)日:1995-03-28

    申请号:US958888

    申请日:1992-10-09

    摘要: A molecular beam epitaxy (MBE) system (10) is provided to grow thin film, epitaxy layers (44, 46, 48, 50) on compound semiconductor substrates (40). A mass spectrometer detector (95) is used to monitor and control the flux from selected sources (21, 23, 25, 27) within the MBE system (10). A uniform layer of indium gallium arsenide (46, 50) may be grown on a semiconductor substrate (40) by controlling the indium flux with respect to substrate (40) temperature and time. An epitaxy layer (46) of indium gallium arsenide with uniform mole fraction concentration and reduced lattice strain is produced.

    摘要翻译: 提供分子束外延(MBE)系统(10)以在化合物半导体衬底(40)上生长薄膜,外延层(44,46,48,50)。 质谱仪检测器(95)用于监测和控制来自MBE系统(10)内的所选源(21,23,25,27)的通量。 通过控制相对于衬底(40)的铟通量的温度和时间,可以在半导体衬底(40)上生长均匀的砷化镓镓(46,50)。 产生具有均匀的摩尔分数浓度和减小的晶格应变的砷化铟镓的外延层(46)。