Method of manufacturing nonvolatile semiconductor memory with backing wirings
    1.
    发明授权
    Method of manufacturing nonvolatile semiconductor memory with backing wirings 有权
    制造具有背衬布线的非易失性半导体存储器的方法

    公开(公告)号:US08815675B2

    公开(公告)日:2014-08-26

    申请号:US13324614

    申请日:2011-12-13

    IPC分类号: H01L31/072

    CPC分类号: H01L27/115 H01L27/11568

    摘要: A nonvolatile semiconductor memory comprises a first memory cell transistor, a second memory cell transistor, a connection layer, protrusion portions and a contact portion. The first memory cell transistor comprises a first gate electrode formed above a first channel region, and a second gate electrode formed on a side of the first gate electrode through an insulating film. The second memory cell transistor comprises a third gate electrode formed above a second channel region, and a fourth gate electrode formed on a side of the third gate electrode through an insulating film and facing the second gate electrode. The connection layer connects the second gate electrode and the fourth gate electrode. The protrusion portions are formed of a material different than that of the second and fourth gate electrodes, and are formed on both ends of the connection layer. The contact portion is formed on the connection layer.

    摘要翻译: 非易失性半导体存储器包括第一存储单元晶体管,第二存储单元晶体管,连接层,突出部分和接触部分。 第一存储单元晶体管包括形成在第一沟道区上方的第一栅电极和通过绝缘膜形成在第一栅电极侧的第二栅电极。 第二存储单元晶体管包括形成在第二沟道区上方的第三栅极电极和通过绝缘膜形成在面向第二栅电极的第三栅电极侧的第四栅电极。 连接层连接第二栅电极和第四栅电极。 突起部由不同于第二和第四栅电极的材料形成,并且形成在连接层的两端。 接触部分形成在连接层上。

    METHOD OF MANUFACTURING NONVOLATILE SEMICONDUCTOR MEMORY WITH BACKING WIRINGS
    2.
    发明申请
    METHOD OF MANUFACTURING NONVOLATILE SEMICONDUCTOR MEMORY WITH BACKING WIRINGS 有权
    用支撑线制造非易失性半导体存储器的方法

    公开(公告)号:US20120083112A1

    公开(公告)日:2012-04-05

    申请号:US13324614

    申请日:2011-12-13

    IPC分类号: H01L21/28

    CPC分类号: H01L27/115 H01L27/11568

    摘要: A nonvolatile semiconductor memory comprises a first memory cell transistor, a second memory cell transistor, a connection layer, protrusion portions and a contact portion. The first memory cell transistor comprises a first gate electrode formed above a first channel region, and a second gate electrode formed on a side of the first gate electrode through an insulating film. The second memory cell transistor comprises a third gate electrode formed above a second channel region, and a fourth gate electrode formed on a side of the third gate electrode through an insulating film and facing the second gate electrode. The connection layer connects the second gate electrode and the fourth gate electrode. The protrusion portions are formed of a material different than that of the second and fourth gate electrodes, and are formed on both ends of the connection layer. The contact portion is formed on the connection layer.

    摘要翻译: 非易失性半导体存储器包括第一存储单元晶体管,第二存储单元晶体管,连接层,突出部分和接触部分。 第一存储单元晶体管包括形成在第一沟道区上方的第一栅电极和通过绝缘膜形成在第一栅电极侧的第二栅电极。 第二存储单元晶体管包括形成在第二沟道区上方的第三栅极电极和通过绝缘膜形成在面向第二栅电极的第三栅电极侧的第四栅电极。 连接层连接第二栅电极和第四栅电极。 突起部由不同于第二和第四栅电极的材料形成,并且形成在连接层的两端。 接触部分形成在连接层上。

    Nonvolatile semiconductor memory with backing wirings and manufacturing method thereof
    3.
    发明申请
    Nonvolatile semiconductor memory with backing wirings and manufacturing method thereof 审中-公开
    具有背衬布线的非易失性半导体存储器及其制造方法

    公开(公告)号:US20070296021A1

    公开(公告)日:2007-12-27

    申请号:US11812325

    申请日:2007-06-18

    IPC分类号: H01L29/788 H01L21/336

    CPC分类号: H01L27/115 H01L27/11568

    摘要: A manufacturing method of a nonvolatile semiconductor memory includes steps (a) to (d). The (a) is a step of laminating a 2nd insulating film, a gate film and a hard mask film which cover a 1st gate electrode of a 1st memory cell transistor formed on a 1st region of a semiconductor substrate through a 1st insulating layer and a 3rd gate electrode of a 2nd memory cell transistor formed on a 2nd region through the 1st insulating layer. The (b) is a step of forming a 1st hard mask layer which covers a bottom portion and a side surface of a concave portion formed using the gate film between the 1st gate electrode and the 3rd gate electrode by etching the hard mask film. The (c) is a step of forming a 2nd gate electrode of the 1st memory cell transistor on the 1st region, a 4th gate electrode of the 2nd memory cell transistor on the 2nd region, and a connection layer which connects the 2nd gate electrode and the 4th gate electrode under the 1st hard mask layer by etching the gate film. The (d) is a step of exposing upper portions of the 1st gate electrode, the 3rd gate electrode and the connection layer by etching back the 2nd insulating film and the 1st hard mask layer covering a bottom portion of the concave portion to remain the 1st hard mask layer such that the 1st hard mask layer covers side surfaces of the concave portion.

    摘要翻译: 非易失性半导体存储器的制造方法包括步骤(a)〜(d)。 (a)是通过第一绝缘层和第二绝缘层覆盖形成在半导体衬底的第一区域上的第一存储单元晶体管的第一栅电极的第二绝缘膜,栅极膜和硬掩模膜的步骤, 通过第一绝缘层形成在第二区域上的第二存储单元晶体管的第三栅电极。 (b)是通过蚀刻硬掩模膜形成第一硬掩模层的步骤,该第一硬掩模层覆盖在第一栅电极和第三栅电极之间使用栅极膜形成的凹部的底部和侧表面。 (c)是在第1区域形成第1存储单元晶体管的第2栅电极,在第2区域形成第二存储单元晶体管的第四栅电极的步骤,以及连接第二栅电极和 通过蚀刻栅极膜在第一硬掩模层下面的第四栅电极。 (d)是通过对第二绝缘膜和覆盖凹部的底部的第一硬掩模层进行蚀刻而使第一栅电极,第三栅电极和连接层的上部露出的步骤,以保持第一栅电极 硬掩模层,使得第一硬掩模层覆盖凹部的侧表面。

    SEMICONDUCTOR ELEMENT MOUNTING BOARD
    4.
    发明申请
    SEMICONDUCTOR ELEMENT MOUNTING BOARD 失效
    半导体元件安装板

    公开(公告)号:US20100213597A1

    公开(公告)日:2010-08-26

    申请号:US12682649

    申请日:2008-10-15

    IPC分类号: H01L23/48 H01L23/31

    摘要: A semiconductor element mounting board includes: aboard having surfaces; a semiconductor element mounted on one of the surfaces of the board; a first layer into which the semiconductor element is embedded, the first layer being provided on the one surface of the board; a second layer provided on the other surface of the board, the second layer being constituted from the same material as that of the first layer, the constituent material of the second layer having the same composition ratio as that of the constituent material of the first layer; and surface layers provided on the first and second layers, respectively, each of the surface layers being formed from at least a single layer. In such a semiconductor element mounting board, each of the surface layers has rigidity higher than that of each of the first and second layers. It is preferred that in the case where a Young's modulus of each surface layer at 25° C. is defined as X GPa and a Young's modulus of the first layer at 25° C. is defined as Y GPa, the X and the Y satisfy a relation of 0.5≦X−Y≦13.

    摘要翻译: 半导体元件安装板包括:具有表面; 安装在所述板的一个表面上的半导体元件; 第一层,半导体元件被嵌入其中,第一层设置在板的一个表面上; 设置在所述板的另一个表面上的第二层,所述第二层由与所述第一层相同的材料构成,所述第二层的构成材料具有与所述第一层的构成材料相同的组成比 ; 以及分别设置在第一和第二层上的表面层,每个表面层由至少单层形成。 在这样的半导体元件安装基板中,每个表面层的刚性比第一和第二层的刚性要高。 优选的是,将25℃下的各表面层的杨氏模量定义为X GPa,在25℃下将第一层的杨氏模量定义为YGPa的情况下,X和Y满足 关系为0.5≦̸ X-Y≦̸ 13。

    Method of growing silicon single crystals
    5.
    发明申请
    Method of growing silicon single crystals 审中-公开
    生长硅单晶的方法

    公开(公告)号:US20090293803A1

    公开(公告)日:2009-12-03

    申请号:US12457066

    申请日:2009-06-01

    IPC分类号: C30B15/22

    摘要: By providing a length of not less than 100 mm to a tail portion to be formed following the cylindrical body portion in growing silicon single crystals having a cylindrical body portion with a diameter of 450 mm using the CZ method, it becomes possible to inhibit the occurrence of dislocations in the tail portion and thus achieve improvements in yield and productivity. A transverse magnetic field having an intensity of not less than 0.1 T is preferably applied on the occasion of formation of that tail portion.

    摘要翻译: 通过使用CZ方法,在生长的具有直径为450mm的圆筒体部分的硅单晶中的圆柱体部分之后形成不小于100mm的长度,可以抑制发生 从而实现产量和生产率的提高。 在形成该尾部的场合,优选施加强度不小于0.1T的横向磁场。

    Nonvolatile semiconductor memory device and method of manufacturing the same
    6.
    发明申请
    Nonvolatile semiconductor memory device and method of manufacturing the same 审中-公开
    非易失性半导体存储器件及其制造方法

    公开(公告)号:US20060011971A1

    公开(公告)日:2006-01-19

    申请号:US11176157

    申请日:2005-07-08

    申请人: Hideki Hara

    发明人: Hideki Hara

    IPC分类号: H01L29/788

    摘要: A nonvolatile semiconductor memory device has a substrate, a floating gate, a buried gate, a control gate, and source/drain regions. The substrate has a trench formed in a first direction. The floating gate is formed on a surface of the substrate outside the trench through a first gate insulating film. The buried gate is formed on a surface of the trench through a second gate insulating film. The control gate is formed to cover the floating gate through a third gate insulating film. The source/drain regions are formed in the substrate below the floating gate.

    摘要翻译: 非易失性半导体存储器件具有衬底,浮置栅极,掩埋栅极,控制栅极和源极/漏极区域。 衬底具有沿第一方向形成的沟槽。 浮置栅极通过第一栅极绝缘膜形成在沟槽外部的衬底的表面上。 掩埋栅极通过第二栅极绝缘膜形成在沟槽的表面上。 控制栅极形成为通过第三栅极绝缘膜覆盖浮置栅极。 源极/漏极区域形成在浮置栅极下方的衬底中。

    Method of manufacturing floating gate type transistor
    7.
    发明授权
    Method of manufacturing floating gate type transistor 有权
    制造浮栅型晶体管的方法

    公开(公告)号:US6090667A

    公开(公告)日:2000-07-18

    申请号:US190205

    申请日:1998-11-13

    申请人: Hideki Hara

    发明人: Hideki Hara

    摘要: A semiconductor device includes a field oxide film, a plurality of word lines, an insulating interlayer film, a plurality of contact holes, a plurality of protective diffusion layers, a plurality of common contact holes, and a plurality of metal plugs. The field oxide film is formed on a silicon substrate having one conductivity type. The word lines are formed by patterning on the field oxide film. The insulating interlayer film is formed on the field oxide film to cover the word lines. The contact holes are formed in the field oxide film to be self-aligned with the word lines. The protective diffusion layers have an opposite conductivity type and are formed on a surface of the semiconductor substrate to correspond to the contact holes. The common contact holes are formed in the insulating interlayer film to extend across the word lines and the protective diffusion layers. The common contact holes are formed at a depth to reach the protective diffusion layers while partly exposing the word lines. The metal plugs fill the common contact holes to electrically connect the protective diffusion layers and the word lines with each other. A method of manufacturing a semiconductor device is also disclosed.

    摘要翻译: 半导体器件包括场氧化膜,多个字线,绝缘层间膜,多个接触孔,多个保护性扩散层,多个公共接触孔和多个金属插塞。 场氧化膜形成在具有一种导电类型的硅衬底上。 字线通过在场氧化膜上图案化而形成。 绝缘层间膜形成在场氧化膜上以覆盖字线。 接触孔形成在场氧化膜中以与字线自对准。 保护性扩散层具有相反的导电型,并且形成在半导体衬底的与接触孔相对应的表面上。 公共接触孔形成在绝缘层间膜中,以跨越字线和保护扩散层延伸。 常见的接触孔形成在深度上以到达保护性扩散层,同时部分地暴露字线。 金属插头填充公共接触孔,以将保护性扩散层和字线彼此电连接。 还公开了半导体器件的制造方法。

    Fabrication method of nonvolatile semiconductor memory device
    8.
    发明授权
    Fabrication method of nonvolatile semiconductor memory device 失效
    非易失性半导体存储器件的制造方法

    公开(公告)号:US5492846A

    公开(公告)日:1996-02-20

    申请号:US334318

    申请日:1994-11-01

    申请人: Hideki Hara

    发明人: Hideki Hara

    CPC分类号: H01L27/11521

    摘要: A fabrication method of a split-gate type flash EEPROM with an improved data-storage characteristic. Insulator strips extending along a first direction are formed on a semiconductor substrate at intervals. The strips are in contact with active regions and a field insulator film. After a first gate insulator film is formed on uncovered parts of the active regions, respectively, a first patterned conductor film is formed to cover the insulator strips and the first gate insulator film. The first conductor film is anisotropically etched to produce floating gate electrodes lower in height than the stripes on the first gate insulator film without using a mask. Each of the floating gate electrodes has an oblique side face. A second gate insulator film is formed to cover the floating gate electrodes and exposed parts of the active regions. A second conductor film is formed to cover the second gate insulator film and the insulator strips. The second conductor film is etched back to flatten a surface of the second conductor film until tops of the strips are exposed. The second conductor film is patterned to produce control gate electrodes. After the insulator strips are removed, drain regions and source regions are formed in the active regions respectively.

    摘要翻译: 具有改进的数据存储特性的分闸式快闪EEPROM的制造方法。 间隔地在半导体衬底上形成沿着第一方向延伸的绝缘体条。 条带与有源区和场绝缘膜接触。 在分别在有源区的未覆盖部分上形成第一栅极绝缘膜之后,形成第一图案化导体膜以覆盖绝缘体条和第一栅极绝缘膜。 第一导体膜被各向异性地蚀刻以产生高于第一栅极绝缘膜上的条纹的浮动栅电极,而不使用掩模。 每个浮栅电极具有倾斜的侧面。 形成第二栅极绝缘膜以覆盖浮动栅电极和有源区的暴露部分。 形成第二导体膜以覆盖第二栅极绝缘膜和绝缘体条。 将第二导体膜回蚀刻以使第二导体膜的表面变平,直到条的顶部露出。 图案化第二导体膜以产生控制栅电极。 在去除绝缘体条之后,分别在有源区中形成漏区和源极区。

    Method of shoulder formation in growing silicon single crystals
    10.
    发明申请
    Method of shoulder formation in growing silicon single crystals 审中-公开
    生长硅单晶中肩峰形成的方法

    公开(公告)号:US20090293804A1

    公开(公告)日:2009-12-03

    申请号:US12457067

    申请日:2009-06-01

    IPC分类号: C30B15/22

    摘要: A method of shoulder formation in growing silicon single crystals by the CZ method which comprises causing the taper angle to vary in at least two stages, desirably three stages or four stages, can inhibit the occurrence of dislocations in the shoulder formation step and thereby improve the yield and increase the productivity. As the number of stages resulting from varying the taper angle is increased, possible disturbances to occur at crystal growth interfaces and incur dislocations can be reduced and, further, when the above shoulder formation method is applied under application of a transverse magnetic field having a predetermined intensity, the occurrence of dislocations can be inhibited and defect-free silicon single crystals suited for the manufacture of wafers can be grown with high production efficiency. Therefore, the method is best suited for the production of large-diameter silicon single crystals with a diameter of 450 mm which are to be applied to manufacturing semiconductor devices.

    摘要翻译: 包括使锥角在至少两个阶段,优选三个阶段或四个阶段中变化的CZ方法生长的单晶硅中的肩部形成方法可以抑制肩部形成步骤中位错的发生,从而改善 产量并提高生产率。 随着锥角变化的阶段数量的增加,在晶体生长界面发生可能的干扰并引起位错,此外,当应用上述肩部形成方法时,施加具有预定的 强度,可以抑制位错的发生,并且可以以高生产效率生长适合制造晶片的无缺陷硅单晶。 因此,该方法最适用于生产直径为450mm的大直径硅单晶,其应用于制造半导体器件。