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    • 1. 发明授权
    • Method for fabricating semiconductor device with recess gate
    • 用于制造具有凹槽的半导体器件的方法
    • US07759234B2
    • 2010-07-20
    • US11952431
    • 2007-12-07
    • Sang-Rok OhJae-Seon Yu
    • Sang-Rok OhJae-Seon Yu
    • H01L21/3205H01L21/4763
    • H01L29/4236H01L29/66621
    • A method for fabricating a semiconductor device includes forming a sacrificial layer having a stack structure of a first insulation layer, a first conductive layer and a second insulation layer over a substrate, forming a recess by etching the sacrificial layer and the substrate, forming a gate insulation layer over a recess surface, filling a second conductive layer in the recess and between etched sacrificial layers, forming a gate electrode metal layer, a gate hard mask layer and a gate mask pattern over a resultant substrate, etching layers formed below the gate mask pattern by using the gate mask pattern until the first conductive layer is exposed, thereby forming an initial gate pattern, forming a capping layer on a sidewall and a top portion of the initial gate pattern, and etching an exposed portion by using the capping layer as a mask until the first insulation layer is exposed, thereby forming a final gate pattern.
    • 一种制造半导体器件的方法包括在衬底上形成具有第一绝缘层,第一导电层和第二绝缘层的堆叠结构的牺牲层,通过蚀刻牺牲层和衬底形成凹部,形成栅极 绝缘层,在凹陷表面上填充凹陷中的第二导电层和蚀刻的牺牲层之间,在所得衬底上形成栅极金属层,栅极硬掩模层和栅极掩模图案,在栅极掩模下方形成蚀刻层 通过使用栅极掩模图案直到第一导电层露出,从而形成初始栅极图案,在初始栅极图案的侧壁和顶部上形成覆盖层,并且通过使用覆盖层作为蚀刻来蚀刻暴露部分 直到第一绝缘层露出的掩模,从而形成最终的栅极图案。
    • 2. 发明申请
    • METHOD FOR FORMING CONTACT IN SEMICONDUCTOR DEVICE
    • 在半导体器件中形成接触的方法
    • US20090130841A1
    • 2009-05-21
    • US12163434
    • 2008-06-27
    • Yong-Tae CHOJae-Kyun LEESang- Rok OH
    • Yong-Tae CHOJae-Kyun LEESang- Rok OH
    • H01L21/4763
    • H01L21/76897H01L21/76804H01L21/76844
    • A method for forming a contact in a semiconductor device, comprises providing a substrate, forming a plurality of conductive patterns and a passivation layer surrounding the conductive patterns over the substrate, forming an insulation layer covering the conductive patterns and passivation layer, forming a mask pattern for a contact over the insulation layer, forming a first opening by performing an isotropic etch process on the insulation layer using the mask pattern as an etch mask, wherein the isotropic etch process is performed until the insulation layer meets the passivation layer, forming a barrier layer over a resultant structure of the first opening, exposing the insulation layer by performing an anisotropic etch process using the mask pattern as an etch mask, and forming a second opening exposing the substrate by performing a self aligned contact (SAC) process using the mask pattern and barrier layer as an etch mask.
    • 一种用于在半导体器件中形成接触的方法,包括提供衬底,在衬底上形成多个导电图案和围绕导电图案的钝化层,形成覆盖导电图案和钝化层的绝缘层,形成掩模图案 对于绝缘层上的接触,通过使用掩模图案作为蚀刻掩模对绝缘层进行各向同性蚀刻工艺形成第一开口,其中执行各向同性蚀刻工艺,直到绝缘层与钝化层相交,形成屏障 在所述第一开口的结果结构上方,通过使用所述掩模图案作为蚀刻掩模执行各向异性蚀刻工艺来暴露所述绝缘层,以及通过使用所述掩模通过执行自对准接触(SAC)工艺来形成第二开口,所述第二开口暴露所述衬底 图案和阻挡层作为蚀刻掩模。
    • 3. 发明申请
    • Method for fabricating semiconductor device
    • 制造半导体器件的方法
    • US20080233730A1
    • 2008-09-25
    • US12005565
    • 2007-12-27
    • Jae-Seon YuSang-Rok Oh
    • Jae-Seon YuSang-Rok Oh
    • H01L21/3205G03F7/26
    • H01L21/28123H01L21/32139H01L27/10873H01L27/10894
    • A method for fabricating a semiconductor device includes providing a substrate where a cell region and a peripheral region are defined, stacking a conductive layer, a hard mask layer, a metal-based hard mask layer, and an amorphous carbon (C) pattern over the substrate etching the metal-based hard mask layer using the amorphous C pattern as an etch mask, thereby forming a resultant structure, forming a photoresist pattern covering the resultant structure in the cell region while exposing the resultant structure in the peripheral region, decreasing a width of the etched metal-based hard mask layer in the peripheral region, removing the photoresist pattern and the amorphous C pattern, and forming a conductive pattern by etching the hard mask layer and the conductive layer using the etched metal-based hard mask layer as an etch mask.
    • 一种半导体器件的制造方法,其特征在于,提供在其上限定了单元区域和周边区域的基板,将导电层,硬掩模层,金属基硬掩模层和无定形碳(C) 使用非晶C图案作为蚀刻掩模来蚀刻基于金属的硬掩模层,从而形成所得结构,形成覆盖所述单元区域中的所得结构的光致抗蚀剂图案,同时使周边区域中的所得结构暴露, 在外围区域中蚀刻的金属基硬掩模层,去除光致抗蚀剂图案和非晶C图案,并且通过使用蚀刻的金属基硬掩模层蚀刻硬掩模层和导电层来形成导电图案,作为 蚀刻掩模。
    • 4. 发明申请
    • METHOD FOR FABRICATING SEMICONDUCTOR DEVICE WITH RECESS GATE
    • 用于制造具有压盖的半导体器件的方法
    • US20080227281A1
    • 2008-09-18
    • US11952431
    • 2007-12-07
    • Sang-Rok OHJae-Seon YU
    • Sang-Rok OHJae-Seon YU
    • H01L21/283
    • H01L29/4236H01L29/66621
    • A method for fabricating a semiconductor device includes forming a sacrificial layer having a stack structure of a first insulation layer, a first conductive layer and a second insulation layer over a substrate, forming a recess by etching the sacrificial layer and the substrate, forming a gate insulation layer over a recess surface, filling a second conductive layer in the recess and between etched sacrificial layers, forming a gate electrode metal layer, a gate hard mask layer and a gate mask pattern over a resultant substrate, etching layers formed below the gate mask pattern by using the gate mask pattern until the first conductive layer is exposed, thereby forming an initial gate pattern, forming a capping layer on a sidewall and a top portion of the initial gate pattern, and etching an exposed portion by using the capping layer as a mask until the first insulation layer is exposed, thereby forming a final gate pattern.
    • 一种制造半导体器件的方法包括在衬底上形成具有第一绝缘层,第一导电层和第二绝缘层的堆叠结构的牺牲层,通过蚀刻牺牲层和衬底形成凹部,形成栅极 绝缘层,在凹陷表面上填充凹陷中的第二导电层和蚀刻的牺牲层之间,在所得衬底上形成栅极金属层,栅极硬掩模层和栅极掩模图案,在栅极掩模下方形成蚀刻层 通过使用栅极掩模图案直到第一导电层露出,从而形成初始栅极图案,在初始栅极图案的侧壁和顶部上形成覆盖层,并且通过使用覆盖层作为蚀刻来蚀刻暴露部分 直到第一绝缘层露出的掩模,从而形成最终的栅极图案。
    • 5. 发明申请
    • Method for fabricating semiconductor device
    • 制造半导体器件的方法
    • US20080160739A1
    • 2008-07-03
    • US12005438
    • 2007-12-26
    • Jae-Seon YuSang-Rok Oh
    • Jae-Seon YuSang-Rok Oh
    • H01L21/28
    • H01L27/105H01L27/1052
    • A method for fabricating a semiconductor device including a first region and a second region, wherein pattern density of etch target patterns formed in the second region is lower than that of etch target patterns formed in the first region includes providing a substrate including the first region and the second region, forming an etch target layer over the substrate, forming a hard mask layer over the etch target layer, etching the hard mask layer to form a first and a second hard mask pattern in the first and the second regions, respectively, reducing a width of the second hard mask pattern formed in the second region and etching the etch target layer using the first hard mask pattern and the second hard mask pattern having the reduced width as an etch barrier to form the etch target patterns in the first and the second regions.
    • 一种用于制造包括第一区域和第二区域的半导体器件的方法,其中形成在所述第二区域中的蚀刻目标图案的图案密度低于在所述第一区域中形成的蚀刻目标图案的图案密度,包括提供包括所述第一区域的衬底和 所述第二区域在所述衬底上形成蚀刻目标层,在所述蚀刻目标层上形成硬掩模层,蚀刻所述硬掩模层以分别在所述第一区域和所述第二区域中形成第一和第二硬掩模图案, 所述第二硬掩模图案的宽度形成在所述第二区域中,并且使用所述第一硬掩模图案蚀刻所述蚀刻目标层,并且所述第二硬掩模图案具有减小的宽度作为蚀刻阻挡层,以在所述第一和/ 第二区域。