Integrated circuit with upstanding stylus
    31.
    发明授权
    Integrated circuit with upstanding stylus 有权
    集成电路与直立手写笔

    公开(公告)号:US07943919B2

    公开(公告)日:2011-05-17

    申请号:US10732579

    申请日:2003-12-10

    IPC分类号: H01L45/00

    摘要: A stylus, an integrated circuit (IC) and method of forming the IC. The stylus extends upward from its apex and has a substantially circular cross section that decreases in diameter upward from the apex. The stylus is formed in a mold that may be formed in an orifice in a dielectric layer between wiring layers. The mold may include multiple concentric layers. For a more pronounced, non-linear stylus taper, each layer may be thinner than its next adjacent outer concentric layer.

    摘要翻译: 触笔,集成电路(IC)和IC的形成方法。 触针从其顶点向上延伸并且具有从顶点向上直径减小的大致圆形横截面。 触针形成在可以形成在布线层之间的电介质层中的孔中的模具中。 模具可以包括多个同心层。 对于更明显的非线性触针锥形,每个层可以比其下一个相邻的外部同心层更薄。

    CREATION OF VIAS AND TRENCHES WITH DIFFERENT DEPTHS
    32.
    发明申请
    CREATION OF VIAS AND TRENCHES WITH DIFFERENT DEPTHS 失效
    创造不同深度的VIAS和TRENCHES

    公开(公告)号:US20110101538A1

    公开(公告)日:2011-05-05

    申请号:US12610624

    申请日:2009-11-02

    IPC分类号: H01L23/48 H01L21/768

    摘要: Embodiments of the invention provide a method of creating vias and trenches with different length. The method includes depositing a plurality of dielectric layers on top of a semiconductor structure with the plurality of dielectric layers being separated by at least one etch-stop layer; creating multiple openings from a top surface of the plurality of dielectric layers down into the plurality of dielectric layers by a non-selective etching process, wherein at least one of the multiple openings has a depth below the etch-step layer; and continuing etching the multiple openings by a selective etching process until one or more openings of the multiple openings that are above the etch-stop layer reach and expose the etch-stop layer. Semiconductor structures made thereby are also provided.

    摘要翻译: 本发明的实施例提供了一种创建具有不同长度的通孔和沟槽的方法。 该方法包括在半导体结构的顶部上沉积多个电介质层,多个电介质层被至少一个蚀刻停止层隔开; 通过非选择性蚀刻工艺从所述多个电介质层的顶表面形成多个开口到多个介电层中,其中所述多个开口中的至少一个具有在所述蚀刻步骤层下方的深度; 以及通过选择性蚀刻工艺继续蚀刻多个开口,直到位于蚀刻停止层上方的多个开口的一个或多个开口到达和暴露蚀刻停止层。 还提供了由此制成的半导体结构。

    Phase change memory cell with vertical transistor
    33.
    发明授权
    Phase change memory cell with vertical transistor 有权
    具有垂直晶体管的相变存储单元

    公开(公告)号:US07932167B2

    公开(公告)日:2011-04-26

    申请号:US11771457

    申请日:2007-06-29

    IPC分类号: H01L21/44

    摘要: A memory cell in an integrated circuit is fabricated in part by forming a lower electrode feature, an island, a sacrificial feature, a gate feature, and a phase change feature. The island is formed on the lower electrode feature and has one or more sidewalls. It comprises a lower doped feature, a middle doped feature formed above the lower doped feature, and an upper doped feature formed above the middle doped feature. The sacrificial feature is formed above the island, while the gate feature is formed along each sidewall of the island. The gate feature overlies at least a portion of the middle doped feature of the island and is operative to control an electrical resistance therein. Finally, the phase feature is formed above the island at least in part by replacing at least a portion of the sacrificial feature with a phase change material. The phase change material is operative to switch between lower and higher electrical resistance states in response to an application of an electrical signal.

    摘要翻译: 部分地通过形成下电极特征,岛,牺牲特征,栅极特征和相变特征来制造集成电路中的存储单元。 岛形成在下电极特征上并具有一个或多个侧壁。 它包括下掺杂特征,形成在下掺杂特征之上的中掺杂特征,以及形成在中掺杂特征之上的上掺杂特征。 牺牲特征形成在岛上方,而栅极特征沿着岛的每个侧壁形成。 栅极特征覆盖岛的中间掺杂特征的至少一部分,并且可操作以控制其中的电阻。 最后,相位特征至少部分地通过用相变材料代替牺牲特征的至少一部分而在岛上方形成。 响应于电信号的应用,相变材料可操作以在较低和较高的电阻状态之间切换。

    METHOD TO IMPROVE WET ETCH BUDGET IN FEOL INTEGRATION
    36.
    发明申请
    METHOD TO IMPROVE WET ETCH BUDGET IN FEOL INTEGRATION 有权
    提高生产费用总额的方法

    公开(公告)号:US20110081765A1

    公开(公告)日:2011-04-07

    申请号:US12571483

    申请日:2009-10-01

    IPC分类号: H01L21/762

    CPC分类号: H01L21/76229

    摘要: A method of forming a semiconductor device is provided where in one embodiment an STI fill is recessed below the pad nitride and pad oxide layers, to a level substantially coplanar with the top surface of the substrate. A thin (having a thickness in the range of about 10 Å-100 Å) wet etch resistant layer is formed in contact with and completely covering at least the top surface of the recessed STI fill material. The thin wet etch resistant layer is more resistant to a wet etch process than at least the pad oxide layer. The thin wet etch resistant layer may be a refractory dielectric material, or a dielectric such as HfOx, AlyOx, ZrOx, HfZrOx, and HfSiOx. The inventive wet etch resistant layer improves the wet etch budget of subsequent wet etch processing steps.

    摘要翻译: 提供一种形成半导体器件的方法,其中在一个实施例中,STI填充物在衬垫氮化物和衬垫氧化物层下方凹入到与衬底的顶表面基本上共面的水平。 至少形成凹入的STI填充材料的上表面,形成薄(具有在约10埃-120埃范围内的厚度)耐湿蚀刻层。 薄的耐湿蚀刻层比至少衬垫氧化物层更耐湿蚀刻工艺。 薄的耐湿蚀刻层可以是耐火电介质材料,或诸如HfO x,Al y O x,ZrO x,HfZrO x和HfSiO x的电介质。 本发明的耐湿蚀刻层提高了后续湿蚀刻处理步骤的湿法蚀刻预算。

    VERTICAL PROFILE FinFET GATE FORMED VIA PLATING UPON A THIN GATE DIELECTRIC
    37.
    发明申请
    VERTICAL PROFILE FinFET GATE FORMED VIA PLATING UPON A THIN GATE DIELECTRIC 审中-公开
    垂直型材FinFET通过薄型电介质形成的FinFET栅极

    公开(公告)号:US20090321833A1

    公开(公告)日:2009-12-31

    申请号:US12145616

    申请日:2008-06-25

    IPC分类号: H01L29/78 H01L21/336

    CPC分类号: H01L29/66795 H01L29/785

    摘要: Methods of making vertical profile FinFET gate electrodes via plating upon a thin gate dielectric are disclosed. In one embodiment, a method for forming a transistor, comprises: providing a semiconductor topography comprising a semiconductor substrate and a semiconductor fin structure extending above the substrate; forming a gate dielectric across exposed surfaces of the semiconductor topography; patterning a mask upon the semiconductor topography such that only a select portion of the gate dielectric is exposed that defines where a gate electrode is to be formed; and plating a metallic material upon the select portion of the gate dielectric to form a gate electrode across a portion of the fin structure.

    摘要翻译: 公开了通过在薄栅极电介质上电镀制造垂直轮廓FinFET栅电极的方法。 在一个实施例中,一种用于形成晶体管的方法包括:提供包括半导体衬底和在衬底上方延伸的半导体鳍片结构的半导体形貌; 在半导体拓扑的暴露表面上形成栅极电介质; 在半导体形貌上图案化掩模,使得仅限定限定要形成栅电极的位置的栅极电介质的选择部分; 以及在所述栅极电介质的所述选择部分上镀覆金属材料以在所述鳍结构的一部分上形成栅电极。

    INTERCONNECT STRUCTURE WITH A MUSHROOM-SHAPED OXIDE CAPPING LAYER AND METHOD FOR FABRICATING SAME
    38.
    发明申请
    INTERCONNECT STRUCTURE WITH A MUSHROOM-SHAPED OXIDE CAPPING LAYER AND METHOD FOR FABRICATING SAME 有权
    带有MUSHROOM型氧化物覆盖层的互连结构及其制造方法

    公开(公告)号:US20090278258A1

    公开(公告)日:2009-11-12

    申请号:US12115944

    申请日:2008-05-06

    IPC分类号: H01L21/768 H01L23/532

    摘要: An interconnect structure is provided that includes a dielectric material 52′ having a dielectric constant of 4.0 or less and including a plurality of conductive features 56 embedded therein. The dielectric material 52′ has an upper surface 52r that is located beneath an upper surface of each of the plurality of conductive features 56. A first dielectric cap 58 is located on the upper surface of the dielectric material 52′ and extends onto at least a portion of the upper surface of each of the plurality of conductive features 56. As shown, the first dielectric cap 58 forms an interface 59 with each of the plurality of conductive features 56 that is opposite to an electrical field that is generated by neighboring conductive features. The inventive structure also includes a second dielectric cap 60 located on an exposed portion of the upper surface of each of the plurality of conductive features 56 not covered with the first dielectric cap 58. The second dielectric cap 60 further covers on an exposed surface of the first dielectric cap 58.

    摘要翻译: 提供一种互连结构,其包括介电常数为4.0或更小的介电材料52',并且包括嵌入其中的多个导电特征56。 电介质材料52'具有位于多个导电特征56中的每一个的上表面下方的上表面52r。第一电介质盖58位于电介质材料52'的上表面上并延伸至至少一个 多个导电特征56中的每一个的上表面的一部分。如图所示,第一电介质盖58形成接口59,多个导电特征56中的每一个与由相邻导电特征 。 本发明的结构还包括位于多个导电特征56的每一个的上表面的未被第一电介质盖58覆盖的暴露部分上的第二电介质帽60.第二电介质帽60还覆盖在 第一电介质盖58。

    Implantation of gate regions in semiconductor device fabrication
    39.
    发明授权
    Implantation of gate regions in semiconductor device fabrication 失效
    在半导体器件制造中植入栅极区域

    公开(公告)号:US07557023B2

    公开(公告)日:2009-07-07

    申请号:US11532189

    申请日:2006-09-15

    IPC分类号: H01L21/425

    摘要: A semiconductor fabrication method. The method includes providing a semiconductor structure which includes (i) a semiconductor layer, (ii) a gate dielectric layer on the semiconductor layer, and (iii) a gate electrode region on the gate dielectric layer. The gate dielectric layer is sandwiched between and electrically insulates the semiconductor layer and the gate electrode region. The semiconductor layer and the gate dielectric layer share a common interfacing surface which defines a reference direction perpendicular to the common interfacing surface and pointing from the semiconductor layer to the gate dielectric layer. Next, a resist layer is formed on the gate dielectric layer and the gate electrode region. Next, a cap portion of the resist layer directly above the gate electrode region in the reference direction is removed without removing any portion of the resist layer not directly above the gate electrode region in the reference direction.

    摘要翻译: 半导体制造方法。 该方法包括提供半导体结构,其包括(i)半导体层,(ii)半导体层上的栅极电介质层,以及(iii)栅极电介质层上的栅电极区。 栅极电介质层被夹在半导体层和栅极电极区域之间并使其电绝缘。 半导体层和栅极介电层共享公共接口表面,其界定垂直于公共接口表面的参考方向并且从半导体层指向栅极介电层。 接下来,在栅极电介质层和栅极电极区域上形成抗蚀剂层。 接下来,去除在参考方向上正好在栅极区域上方的抗蚀剂层的盖部分,而不去除在参考方向上不在栅电极区域正上方的任何部分的抗蚀剂层。