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    • 3. 发明授权
    • Methods of forming bulk FinFET devices so as to reduce punch through leakage currents
    • 形成散装FinFET器件的方法,以减少穿透漏电流
    • US09023715B2
    • 2015-05-05
    • US13454520
    • 2012-04-24
    • Juergen FaulFrank Jakubowski
    • Juergen FaulFrank Jakubowski
    • H01L21/225H01L29/66
    • H01L21/2255H01L29/66803
    • Disclosed are methods of forming bulk FinFET semiconductor devices to reduce punch through leakage currents. One example includes forming a plurality of trenches in a semiconducting substrate to define a plurality of spaced-apart fins, forming a doped layer of insulating material in the trenches, wherein an exposed portion of each of the fins extends above an upper surface of the doped layer of insulating material while a covered portion of each of the fins is positioned below the upper surface of the doped layer of insulating material, and performing a process operation to heat at least the doped layer of insulating material to cause a dopant material in the doped layer to migrate from the doped layer of insulating material into the covered portions of the fins and thereby define a doped region in the covered portions of the fins that is positioned under the exposed portions of the fins.
    • 公开了形成体FinFET半导体器件以减少穿透漏电流的方法。 一个实例包括在半导体衬底中形成多个沟槽以限定多个间隔开的散热片,在沟槽中形成绝缘材料的掺杂层,其中每个鳍的暴露部分在掺杂的上表面上方延伸 绝缘材料层,而每个鳍片的覆盖部分位于绝缘材料的掺杂层的上表面的下方,并且进行加工操作以至少加热绝缘材料的掺杂层,以使掺杂物质掺杂 层从绝缘材料的掺杂层迁移到鳍的被覆盖部分中,从而在翅片的被覆盖部分中限定位于翅片的暴露部分下方的掺杂区域。
    • 4. 发明申请
    • METHODS OF FORMING BULK FINFET DEVICES SO AS TO REDUCE PUNCH THROUGH LEAKAGE CURRENTS
    • 形成散装FINFET器件的方法,以减少通过泄漏电流的冲击
    • US20130280883A1
    • 2013-10-24
    • US13454520
    • 2012-04-24
    • Juergen FaulFrank Jakubowski
    • Juergen FaulFrank Jakubowski
    • H01L21/225
    • H01L21/2255H01L29/66803
    • Disclosed are methods of forming bulk FinFET semiconductor devices to reduce punch through leakage currents. One example includes forming a plurality of trenches in a semiconducting substrate to define a plurality of spaced-apart fins, forming a doped layer of insulating material in the trenches, wherein an exposed portion of each of the fins extends above an upper surface of the doped layer of insulating material while a covered portion of each of the fins is positioned below the upper surface of the doped layer of insulating material, and performing a process operation to heat at least the doped layer of insulating material to cause a dopant material in the doped layer to migrate from the doped layer of insulating material into the covered portions of the fins and thereby define a doped region in the covered portions of the fins that is positioned under the exposed portions of the fins.
    • 公开了形成体FinFET半导体器件以减少穿透漏电流的方法。 一个实例包括在半导体衬底中形成多个沟槽以限定多个间隔开的散热片,在沟槽中形成绝缘材料的掺杂层,其中每个鳍的暴露部分在掺杂的上表面上方延伸 绝缘材料层,而每个鳍片的覆盖部分位于绝缘材料的掺杂层的上表面的下方,并且进行加工操作以至少加热绝缘材料的掺杂层,以使掺杂物质掺杂 层从绝缘材料的掺杂层迁移到鳍的被覆盖部分中,从而在翅片的被覆盖部分中限定位于翅片的暴露部分下方的掺杂区域。
    • 9. 发明授权
    • Multi-layer gate stack structure comprising a metal layer for a FET device, and method for fabricating the same
    • 包括用于FET器件的金属层的多层栅极堆栈结构及其制造方法
    • US07078748B2
    • 2006-07-18
    • US10865763
    • 2004-06-14
    • Matthias GoldbachFrank JakubowskiRalf KoepeChao-Wen LayKristin SchupkeMichael SchmidtCheng-Chih Huang
    • Matthias GoldbachFrank JakubowskiRalf KoepeChao-Wen LayKristin SchupkeMichael SchmidtCheng-Chih Huang
    • H01L27/148
    • H01L21/28044
    • A multi-layer gate stack structure of a field-effect transistor device is fabricated by providing a gate electrode layer stack with a polysilicon layer, a transition metal interface layer, a nitride barrier layer and then a metal layer on a gate dielectric, wherein the transition metal is titanium, tantalum or cobalt. Patterning the gate electrode layer stack comprises a step of patterning the metal layer and the barrier layer with an etch stop on the surface of the interface layer. Exposed portions of the interface layer are removed and the remaining portions are pulled back from the sidewalls of the gate stack structure leaving divots extending along the sidewalls of the gate stack structure between the barrier layer and the polysilicon layer. A nitride liner encapsulating the metal layer, the barrier layer and the interface layer fills the divots left by the pulled-back interface layer. The nitride liner is opened before the polysilicon layer is patterned. As the requirement for an overetch into the polysilicon layer during the etch of the metal layer, the barrier layer and the interface layer is omitted, the height of the polysilicon layer can be reduced. The aspect ration of the gate stack structure is improved, the feasibility of pattern and fill processes enhanced and the range of an angle under which implants can be performed is extended.
    • 通过提供具有多晶硅层,过渡金属界面层,氮化物阻挡层,然后在栅极电介质上的金属层的栅电极层堆叠来制造场效应晶体管器件的多层栅极堆叠结构,其中, 过渡金属是钛,钽或钴。 对栅电极层堆叠进行图案化包括在界面层的表面上用蚀刻阻挡层图案化金属层和阻挡层的步骤。 界面层的暴露部分被去除,其余的部分从栅极叠层结构的侧壁被拉回,留下在阻挡层和多晶硅层之间的栅堆叠结构的侧壁延伸的纹理。 封装金属层,阻挡层和界面层的氮化物衬垫填充由拉回界面层留下的凹坑。 在将多晶硅层图案化之前打开氮化物衬垫。 作为在金属层的蚀刻期间进行多晶硅层的蚀刻的要求,省略了阻挡层和界面层,可以降低多晶硅层的高度。 提高了栅极堆叠结构的方面,增加了图案和填充过程的可行性,并且延长了可以进行植入的角度范围。