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    • 32. 发明授权
    • Method for manufacturing a semiconductor device
    • 半导体器件的制造方法
    • US07118975B2
    • 2006-10-10
    • US10872360
    • 2004-06-22
    • Jae-Jong HanYoung-Wook ParkJae-Hyun Yeo
    • Jae-Jong HanYoung-Wook ParkJae-Hyun Yeo
    • H01L21/336
    • H01L29/66621H01L21/28123H01L21/76235H01L21/823481H01L27/105H01L27/1052H01L27/10876
    • Provided is a method for manufacturing semiconductor devices including channel trenches that are separated by isolation structures. According to the process, the substrate is etched to form isolation trenches after which a sidewall oxide layer, a liner nitride layer and a field oxide layer are subsequently formed on the substrate and in the isolation trenches. The substrate is then planarized to remove upper portions of the sidewall oxide layer, the liner nitride layer and the field oxide layer to expose surface portions of the substrate between adjacent isolation trench structures. Channel trenches are then formed in the exposed surface portions of the substrate leaving residual substrate regions adjacent the isolation trench structures. These residual substrate regions are then oxidized and removed to form improved second channel trenches for the formation of transistor regions.
    • 提供一种半导体器件的制造方法,其包括由隔离结构分离的沟槽。 根据该过程,蚀刻衬底以形成隔离沟槽,之后随后在衬底和隔离沟槽中形成侧壁氧化物层,衬里氮化物层和场氧化物层。 然后将衬底平坦化以除去侧壁氧化物层,衬里氮化物层和场氧化物层的上部,以暴露在相邻的隔离沟槽结构之间的衬底的表面部分。 然后在衬底的暴露的表面部分中形成通道沟槽,留下邻近隔离沟槽结构的残余衬底区域。 然后将这些残留的衬底区域氧化并除去以形成用于形成晶体管区域的改进的第二沟道沟槽。
    • 38. 发明申请
    • Method of manufacturing a semiconductor device
    • 制造半导体器件的方法
    • US20060073670A1
    • 2006-04-06
    • US11243397
    • 2005-10-03
    • Yong-Kug BaeKwang-Sub YoonYoung-Wook ParkJung-Hyeon Lee
    • Yong-Kug BaeKwang-Sub YoonYoung-Wook ParkJung-Hyeon Lee
    • H01L21/20H01L21/4763H01L21/8242
    • H01L28/91H01L21/7682H01L27/10852H01L27/10894
    • In one embodiment, first and second multi-layer pattern structures are formed over first and second regions of a substrate, respectively. The first and second multi-layer pattern structures include first and second support layer patterns, respectively. The first and second multi-layer pattern structures define first and second openings, respectively. The first and second openings partially expose a portion of the first region and a portion of the second region, respectively. First and second liner patterns are formed on an inner face of the first opening and an inner face of the second opening, respectively. A first etching process is performed on the first multi-layer pattern structure until the first support layer pattern is removed. A second etching process is performed to remove the second multi-layer pattern structure except for the second support layer pattern.
    • 在一个实施例中,分别在衬底的第一和第二区域上形成第一和第二多层图案结构。 第一和第二多层图案结构分别包括第一和第二支撑层图案。 第一和第二多层图案结构分别限定第一和第二开口。 第一和第二开口分别部分地暴露第一区域的一部分和第二区域的一部分。 第一和第二衬里图案分别形成在第一开口的内表面和第二开口的内表面上。 对第一多层图案结构进行第一蚀刻处理,直到第一支撑层图案被去除。 执行第二蚀刻处理以除去除了第二支撑层图案之外的第二多层图案结构。
    • 40. 发明授权
    • Methods of forming integrated circuit capacitors having doped HSG electrodes
    • 形成具有掺杂HSG电极的集成电路电容器的方法
    • US06624069B2
    • 2003-09-23
    • US09735244
    • 2000-12-12
    • Seung-Hwan LeeSang-Hyeop LeeYoung-Sun KimSe-Jin ShimYou-Chan JinJu-Tae MoonJin-Seok ChoiYoung-Min KimKyung-Hoon KimKab-Jin NamYoung-Wook ParkSeok-Jun WonYoung-Dae Kim
    • Seung-Hwan LeeSang-Hyeop LeeYoung-Sun KimSe-Jin ShimYou-Chan JinJu-Tae MoonJin-Seok ChoiYoung-Min KimKyung-Hoon KimKab-Jin NamYoung-Wook ParkSeok-Jun WonYoung-Dae Kim
    • H01L2144
    • H01L28/84Y10S438/964
    • Methods of forming integrated circuit capacitors include the steps of forming a lower electrode of a capacitor by forming a conductive layer pattern (e.g., silicon layer) on a semiconductor substrate and then forming a hemispherical grain (HSG) silicon surface layer of first conductivity type on the conductive layer pattern. The inclusion of a HSG silicon surface layer on an outer surface of the conductive layer pattern increases the effective surface area of the lower electrode for a given lateral dimension. The HSG silicon surface layer is also preferably sufficiently doped with first conductivity type dopants (e.g., N-type) to minimize the size of any depletion layer which may be formed in the lower electrode when the capacitor is reverse biased and thereby improve the capacitor's characteristic Cmin/Cmax ratio. A diffusion barrier layer (e.g., silicon nitride) is also formed on the lower electrode and then a dielectric layer is formed on the diffusion barrier layer. The diffusion barrier layer is preferably made of a material of sufficient thickness to prevent reaction between the dielectric layer and the lower electrode and also prevent out-diffusion of dopants from the HSG silicon surface layer to the dielectric layer. The dielectric layer is also preferably formed of a material having high dielectric strength to increase capacitance.
    • 形成集成电路电容器的方法包括以下步骤:通过在半导体衬底上形成导电层图案(例如,硅层)形成电容器的下电极,然后形成第一导电类型的半球形晶粒(HSG)硅表面层 导电层图案。 在导电层图案的外表面上包含HSG硅表面层增加给定横向尺寸的下电极的有效表面积。 HSG硅表面层还优选地充分掺杂有第一导电型掺杂剂(例如,N型),以使电容器反向偏置时可能在下电极中形成的任何耗尽层的尺寸最小化,从而提高电容器的特性 Cmin / Cmax比。 扩散阻挡层(例如,氮化硅)也形成在下电极上,然后在扩散阻挡层上形成电介质层。 扩散阻挡层优选由足够厚度的材料制成,以防止介电层和下电极之间的反应,并且还防止掺杂剂从HSG硅表面层向电介质层的扩散。 电介质层还优选由具有高介电强度的材料形成以增加电容。