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    • 24. 发明授权
    • RRAM device with an embedded selector structure and methods of making same
    • 具有嵌入式选择器结构的RRAM器件及其制作方法
    • US08674332B2
    • 2014-03-18
    • US13445658
    • 2012-04-12
    • Eng Huat TohShyue Seng TanElgin Quek
    • Eng Huat TohShyue Seng TanElgin Quek
    • H01L29/02H01L47/00
    • H01L45/04H01L27/2445H01L27/2463H01L45/1233H01L45/146H01L45/147H01L45/1666
    • One device disclosed herein includes first and second sidewall spacers positioned above a semiconducting substrate, wherein the first and second sidewall spacers are comprised of at least a conductive material, a conductive word line electrode positioned between the first and second sidewall spacers and first and second regions of variable resistance material positioned between the conductive word line electrode and the conductive material of the first and second sidewall spacers, respectively. This example also includes a base region of a bipolar transistor in the substrate below the word line electrode, an emitter region formed below the base region and first and second collector regions formed in the substrate within the base region, wherein the first collector region is positioned at least partially under the first region of variable resistance material and the second collector region is positioned at least partially under the second region of variable resistance material.
    • 本文公开的一种装置包括位于半导体衬底之上的第一和第二侧壁间隔物,其中第一和第二侧壁间隔物由至少导电材料构成,位于第一和第二侧壁间隔物之间​​的导电字线电极和第一和第二区域 分别位于导电字线电极和第一和第二侧壁间隔物的导电材料之间的可变电阻材料。 该示例还包括在字线电极下方的基板中的双极晶体管的基极区域,形成在基极区域下方的发射极区域和形成在基极区域内的基板中的第一和第二集电极区域,其中第一集电极区域被定位 至少部分地在可变电阻材料的第一区域下方,并且第二集电极区域至少部分地位于可变电阻材料的第二区域的下方。
    • 26. 发明申请
    • RRAM DEVICE WITH AN EMBEDDED SELECTOR STRUCTURE AND METHODS OF MAKING SAME
    • 具有嵌入式选择器结构的RRAM器件及其制造方法
    • US20130270501A1
    • 2013-10-17
    • US13445658
    • 2012-04-12
    • Eng Huat TohShyue Seng TanElgin Quek
    • Eng Huat TohShyue Seng TanElgin Quek
    • H01L47/00H01L21/02
    • H01L45/04H01L27/2445H01L27/2463H01L45/1233H01L45/146H01L45/147H01L45/1666
    • One device disclosed herein includes first and second sidewall spacers positioned above a semiconducting substrate, wherein the first and second sidewall spacers are comprised of at least a conductive material, a conductive word line electrode positioned between the first and second sidewall spacers and first and second regions of variable resistance material positioned between the conductive word line electrode and the conductive material of the first and second sidewall spacers, respectively. This example also includes a base region of a bipolar transistor in the substrate below the word line electrode, an emitter region formed below the base region and first and second collector regions formed in the substrate within the base region, wherein the first collector region is positioned at least partially under the first region of variable resistance material and the second collector region is positioned at least partially under the second region of variable resistance material.
    • 本文公开的一种装置包括位于半导体衬底之上的第一和第二侧壁间隔物,其中第一和第二侧壁间隔物由至少导电材料构成,位于第一和第二侧壁间隔物之间​​的导电字线电极和第一和第二区域 分别位于导电字线电极和第一和第二侧壁间隔物的导电材料之间的可变电阻材料。 该示例还包括在字线电极下方的基板中的双极晶体管的基极区域,形成在基极区域下方的发射极区域和形成在基极区域内的基板中的第一和第二集电极区域,其中第一集电极区域被定位 至少部分地在可变电阻材料的第一区域下方,并且第二集电极区域至少部分地位于可变电阻材料的第二区域的下方。
    • 30. 发明授权
    • Compact localized RRAM cell structure realized by spacer technology
    • 通过间隔技术实现紧凑的局部RRAM单元结构
    • US08993407B2
    • 2015-03-31
    • US13683779
    • 2012-11-21
    • Shyue Seng TanEng Huat TohElgin Quek
    • Shyue Seng TanEng Huat TohElgin Quek
    • H01L45/00H01L27/24
    • H01L45/146H01L27/2445H01L27/2463H01L45/08H01L45/1233H01L45/1253H01L45/1675H01L45/1691
    • An RRAM is disclosed with a vertical BJT selector. Embodiments include defining a STI region in a substrate, implanting dopants in the substrate to form a first polarity well around and below a bottom portion of the STI region, a second polarity channel over the well on opposite sides of the STI region, and a first polarity active area over each channel at the surface of the substrate, forming an RRAM liner on the active area and STI region, forming a sacrificial top electrode on the RRAM liner, forming spacers on opposite sides of the sacrificial top electrode, implanting a second polarity dopant in the active area on opposite sides of the sacrificial top electrode, forming a silicon oxide adjacent the spacers, removing at least a portion of the sacrificial top electrode forming a cavity, forming in the cavity inner spacers adjacent the spacers and a top electrode.
    • 公开了一种具有垂直BJT选择器的RRAM。 实施例包括在衬底中限定STI区域,在衬底中注入掺杂剂以在STI区域的底部周围和下方形成第一极性,在STI区域的相对侧上的阱上的第二极性沟道,以及第一 在衬底的表面上的每个通道上的极性有源区域,在有源区域和STI区域上形成RRAM衬垫,在RRAM衬垫上形成牺牲顶部电极,在牺牲顶部电极的相对侧上形成间隔物,注入第二极性 在牺牲顶部电极的相对侧上的有源区域中形成掺杂剂,在间隔物附近形成氧化硅,去除形成空腔的牺牲顶部电极的至少一部分,在空腔中形成邻近间隔物的内部间隔物和顶部电极。