公开(公告)号：US08436415B2

公开(公告)日：2013-05-07

申请号：US12723981

申请日：2010-03-15

申请人： Masaru Kidoh ,  Ryota Katsumata ,  Masaru Kito ,  Yoshiaki Fukuzumi ,  Hiroyasu Tanaka ,  Yosuke Komori ,  Megumi Ishiduki ,  Tomoko Fujiwara ,  Hideaki Aochi ,  Ryouhei Kirisawa ,  Yoshimasa Mikajiri ,  Shigeto Oota

发明人： Masaru Kidoh ,  Ryota Katsumata ,  Masaru Kito ,  Yoshiaki Fukuzumi ,  Hiroyasu Tanaka ,  Yosuke Komori ,  Megumi Ishiduki ,  Tomoko Fujiwara ,  Hideaki Aochi ,  Ryouhei Kirisawa ,  Yoshimasa Mikajiri ,  Shigeto Oota

IPC分类号： H01L29/792

CPC分类号： H01L29/66833 ,  H01L27/11578 ,  H01L27/11582 ,  H01L29/792 ,  H01L29/7926

摘要： A memory string comprises: a first semiconductor layer including a columnar portion extending in a stacking direction on a substrate; a first charge storage layer surrounding the columnar portion; and a plurality of first conductive layers stacked on the substrate so as to surround the first charge storage layer. A select transistor comprises: a second semiconductor layer in contact with an upper surface of the columnar portion and extending in the stacking direction; a second charge storage layer surrounding the second semiconductor layer; and a second conductive layer deposited above the first conductive layer to surround the second charge storage layer. The second charge storage layer is formed from a layer downward of the second conductive layer to an upper end vicinity of the second conductive layer, and is not formed in a layer upward of the upper end vicinity.

摘要翻译： 存储器串包括：第一半导体层，包括在基板上沿堆叠方向延伸的柱状部分; 围绕所述柱状部分的第一电荷存储层; 以及堆叠在所述基板上以围绕所述第一电荷存储层的多个第一导电层。 选择晶体管包括：与柱状部分的上表面接触并沿堆叠方向延伸的第二半导体层; 围绕所述第二半导体层的第二电荷存储层; 以及沉积在所述第一导电层上方以围绕所述第二电荷存储层的第二导电层。 第二电荷存储层由第二导电层向下的层向第二导电层的上端附近形成，并且不形成在上端附近的上方。

公开(公告)号：US08374033B2

公开(公告)日：2013-02-12

申请号：US12728694

申请日：2010-03-22

申请人： Masaru Kito ,  Ryota Katsumata ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Hiroyasu Tanaka ,  Yosuke Komori ,  Megumi Ishiduki ,  Junya Matsunami ,  Tomoko Fujiwara ,  Hideaki Aochi ,  Ryouhei Kirisawa ,  Yoshimasa Mikajiri ,  Shigeto Oota

发明人： Masaru Kito ,  Ryota Katsumata ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Hiroyasu Tanaka ,  Yosuke Komori ,  Megumi Ishiduki ,  Junya Matsunami ,  Tomoko Fujiwara ,  Hideaki Aochi ,  Ryouhei Kirisawa ,  Yoshimasa Mikajiri ,  Shigeto Oota

IPC分类号： G11C16/04

CPC分类号： G11C16/04 ,  G11C16/0483 ,  G11C16/10 ,  G11C16/16 ,  G11C16/3409 ,  G11C16/3413 ,  H01L27/11578 ,  H01L27/11582

摘要： A nonvolatile semiconductor memory device includes: a memory unit; and a control unit. The memory unit includes a multilayer structure including electrode films and inter-electrode insulating films alternately stacked in a first direction; a semiconductor pillar piercing the multilayer structure in the first direction; a memory layer provided between the semiconductor pillar and the electrode films; a inner insulating film provided between the memory layer and the semiconductor pillar; a outer insulating film provided between the memory layer and the electrode films; and a wiring electrically connected to the first semiconductor pillar. In erasing operation, the control unit sets the first wiring at a first potential and sets the electrode film at a second potential lower than the first potential, and then sets the first wiring at a third potential and sets the electrode film at a fourth potential higher than the third potential.

摘要翻译： 非易失性半导体存储器件包括：存储器单元; 和控制单元。 存储单元包括多层结构，其包括沿第一方向交替堆叠的电极膜和电极间绝缘膜; 在所述第一方向上穿透所述多层结构的半导体柱; 设置在所述半导体柱和所述电极膜之间的存储层; 设置在所述存储层和所述半导体柱之间的内部绝缘膜; 设置在存储层和电极膜之间的外部绝缘膜; 以及电连接到第一半导体柱的布线。 在擦除操作中，控制单元将第一布线设置在第一电位，并将电极膜设置在比第一电位低的第二电位，然后将第一布线设置在第三电位，并将电极膜设置为高于第四电位 比第三个潜力。

公开(公告)号：US08338876B2

公开(公告)日：2012-12-25

申请号：US12555320

申请日：2009-09-08

申请人： Masaru Kito ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Megumi Ishiduki ,  Yosuke Komori ,  Hiroyasu Tanaka ,  Ryota Katsumata ,  Hideaki Aochi

发明人： Masaru Kito ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Megumi Ishiduki ,  Yosuke Komori ,  Hiroyasu Tanaka ,  Ryota Katsumata ,  Hideaki Aochi

IPC分类号： H01L29/788

CPC分类号： H01L29/7926 ,  H01L27/0688 ,  H01L27/11551 ,  H01L27/11556 ,  H01L29/7881

摘要： A non-volatile semiconductor storage device includes a plurality of memory strings each having a plurality of electrically rewritable memory cells connected in series. Each of the memory strings comprising: a first semiconductor layer including a columnar portion extending in a vertical direction with respect to a substrate; a plurality of first conductive layers formed to surround side surfaces of the columnar portions via insulation layers, and formed at a certain pitch in the vertical direction, the first conductive layers functioning as floating gates of the memory cells; and a plurality of second conductive layers formed to surround the first conductive layers via insulation layers, and functioning as control electrodes of the memory cells. Each of the first conductive layers has a length in the vertical direction that is shorter than a length in the vertical direction of each of the second conductive layers.

摘要翻译： 非挥发性半导体存储装置包括多个存储串，每个存储串具有串联连接的多个电可重写存储单元。 每个存储器串包括：第一半导体层，包括相对于衬底在垂直方向上延伸的柱状部分; 多个第一导电层，经由绝缘层形成为围绕柱状部分的侧表面，并以垂直方向上的一定间距形成，第一导电层用作存储器单元的浮动栅极; 以及形成为经由绝缘层包围第一导电层并且用作存储单元的控制电极的多个第二导电层。 每个第一导电层在垂直方向上具有比每个第二导电层的垂直方向上的长度短的长度。

公开(公告)号：US08264031B2

公开(公告)日：2012-09-11

申请号：US12696544

申请日：2010-01-29

申请人： Masaru Kidoh ,  Hiroyasu Tanaka ,  Tomoko Fujiwara ,  Megumi Ishiduki ,  Yosuke Komori ,  Masaru Kito ,  Yoshiaki Fukuzumi ,  Ryota Katsumata ,  Ryouhei Kirisawa ,  Junya Matsunami ,  Hideaki Aochi

发明人： Masaru Kidoh ,  Hiroyasu Tanaka ,  Tomoko Fujiwara ,  Megumi Ishiduki ,  Yosuke Komori ,  Masaru Kito ,  Yoshiaki Fukuzumi ,  Ryota Katsumata ,  Ryouhei Kirisawa ,  Junya Matsunami ,  Hideaki Aochi

IPC分类号： H01L29/792

CPC分类号： H01L27/11578 ,  H01L27/11551 ,  H01L27/11556

摘要： A nonvolatile semiconductor memory device includes: a semiconductor substrate; a multilayer structure; a semiconductor pillar; a third insulating film; and a fourth insulating film layer. The a multilayer structure is provided on the semiconductor substrate and including a plurality of constituent multilayer bodies stacked in a first direction perpendicular to a major surface of the semiconductor substrate. Each of the plurality of constituent multilayer bodies includes an electrode film provided parallel to the major surface, a first insulating film, a charge storage layer provided between the electrode film and the first insulating film, and a second insulating film provided between the charge storage layer and the electrode film. The semiconductor pillar penetrates through the multilayer structure in the first direction. The third insulating film is provided between the semiconductor pillar and the electrode film. The fourth insulating film is provided between the semiconductor pillar and the charge storage layer.

摘要翻译： 非易失性半导体存储器件包括：半导体衬底; 多层结构; 半导体柱; 第三绝缘膜; 和第四绝缘膜层。 多层结构设置在半导体衬底上，并且包括沿垂直于半导体衬底的主表面的第一方向堆叠的多个构成层叠体。 多个构成多层体中的每一个包括平行于主表面设置的电极膜，第一绝缘膜，设置在电极膜和第一绝缘膜之间的电荷存储层，以及设置在电荷存储层 和电极膜。 半导体柱沿第一方向穿透多层结构。 第三绝缘膜设置在半导体柱和电极膜之间。 第四绝缘膜设置在半导体柱和电荷存储层之间。

公开(公告)号：US08237211B2

公开(公告)日：2012-08-07

申请号：US12556242

申请日：2009-09-09

申请人： Yoshiaki Fukuzumi ,  Ryota Katsumata ,  Masaru Kito ,  Hiroyasu Tanaka ,  Masaru Kidoh ,  Yosuke Komori ,  Megumi Ishiduki ,  Akihiro Nitayama ,  Hideaki Aochi ,  Hitoshi Ito ,  Yasuyuki Matsuoka

发明人： Yoshiaki Fukuzumi ,  Ryota Katsumata ,  Masaru Kito ,  Hiroyasu Tanaka ,  Masaru Kidoh ,  Yosuke Komori ,  Megumi Ishiduki ,  Akihiro Nitayama ,  Hideaki Aochi ,  Hitoshi Ito ,  Yasuyuki Matsuoka

IPC分类号： H01L29/788

CPC分类号： H01L27/11578 ,  H01L27/11565 ,  H01L27/11582

摘要： A non-volatile semiconductor storage device has a memory string including a plurality of electrically rewritable memory cells connected in series. The non-volatile semiconductor storage device also has a protruding layer formed to protrude upward with respect to a substrate. The memory string includes: a plurality of first conductive layers laminated on the substrate; a first semiconductor layer formed to penetrate the plurality of first conductive layers; and an electric charge storage layer formed between the first conductive layers and the first semiconductor layer, and configured to be able to store electric charges. Each of the plurality of first conductive layers includes: a bottom portion extending in parallel to the substrate; and a side portion extending upward with respect to the substrate along the protruding layer at the bottom portion. The protruding layer has a width in a first direction parallel to the substrate that is less than or equal to its length in a lamination direction.

摘要翻译： 非易失性半导体存储装置具有串联连接的多个电可重写存储单元的存储串。 非挥发性半导体存储装置还具有形成为相对于基板向上突出的突出层。 存储器串包括：层叠在基板上的多个第一导电层; 形成为穿透所述多个第一导电层的第一半导体层; 以及形成在第一导电层和第一半导体层之间的电荷存储层，并且能够存储电荷。 多个第一导电层中的每一个包括：平行于基板延伸的底部; 以及沿底部的突出层相对于基板向上延伸的侧部。 该突出层在平行于基板的第一方向上的宽度小于或等于其在层叠方向上的长度。

公开(公告)号：US08203884B2

公开(公告)日：2012-06-19

申请号：US12727854

申请日：2010-03-19

申请人： Masaru Kito ,  Ryota Katsumata ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Hiroyasu Tanaka ,  Yosuke Komori ,  Megumi Ishiduki ,  Tomoko Fujiwara ,  Hideaki Aochi

发明人： Masaru Kito ,  Ryota Katsumata ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Hiroyasu Tanaka ,  Yosuke Komori ,  Megumi Ishiduki ,  Tomoko Fujiwara ,  Hideaki Aochi

IPC分类号： G11C16/04 ,  H01L29/788 ,  H01L29/792

CPC分类号： H01L29/792 ,  H01L27/11565 ,  H01L27/11573 ,  H01L27/11578 ,  H01L27/11582 ,  H01L29/66833 ,  H01L29/7926

摘要： A nonvolatile semiconductor memory device, includes: a stacked structural unit including electrode films alternately stacked with inter-electrode insulating films; a first and second semiconductor pillars piercing the stacked structural unit; a connection portion semiconductor layer to electrically connect the first and second semiconductor pillars; a connection portion conductive layer opposing the connection portion semiconductor layer; a memory layer, an inner insulating film, and an outer insulating film provided between the first and second semiconductor layers and the electrode films and between the connection portion semiconductor layer and the connection portion conductive layer. At least a portion of a face of the connection portion conductive layer opposing the outer insulating film is a curved surface having a recessed configuration on a side of the outer insulating film.

摘要翻译： 一种非易失性半导体存储器件，包括：堆叠结构单元，其包括交替层叠有电极间绝缘膜的电极膜; 第一和第二半导体柱刺穿堆叠的结构单元; 电连接第一和第二半导体柱的连接部分半导体层; 与连接部分半导体层相对的连接部分导电层; 设置在第一和第二半导体层与电极膜之间以及连接部分半导体层和连接部分导电层之间的记忆层，内部绝缘膜和外部绝缘膜。 连接部导电层的与外绝缘膜相对的面的至少一部分是在外绝缘膜一侧具有凹陷构造的曲面。

公开(公告)号：US08138489B2

公开(公告)日：2012-03-20

申请号：US12562402

申请日：2009-09-18

申请人： Hiroyasu Tanaka ,  Masaru Kidoh ,  Ryota Katsumata ,  Masaru Kito ,  Yosuke Komori ,  Megumi Ishiduki ,  Hideaki Aochi ,  Yoshiaki Fukuzumi

发明人： Hiroyasu Tanaka ,  Masaru Kidoh ,  Ryota Katsumata ,  Masaru Kito ,  Yosuke Komori ,  Megumi Ishiduki ,  Hideaki Aochi ,  Yoshiaki Fukuzumi

IPC分类号： H01L47/00

CPC分类号： H01L27/115 ,  G11C13/003 ,  G11C2213/33 ,  G11C2213/34 ,  G11C2213/71 ,  G11C2213/72 ,  G11C2213/78 ,  H01L27/0203 ,  H01L27/101 ,  H01L27/1021 ,  H01L27/2409 ,  H01L27/2454 ,  H01L27/249 ,  H01L45/04 ,  H01L45/1226 ,  H01L45/145

摘要： A non-volatile semiconductor storage device includes a plurality of memory element groups, each of the memory element groups having a plurality of memory elements, each of the memory elements having a resistance-change element and a Schottky diode connected in series. Each of the memory element groups includes: a first columnar layer extending in a lamination direction; a first insulation layer formed on a side surface of the first columnar layer and functioning as the resistance-change element; and a first conductive layer formed to surround the first columnar layer via the first insulation layer. The first conductive layer is formed of metal. The first columnar layer is formed of a semiconductor having such a impurity concentration that the first conductive layer and the semiconductor configure the Schottky diode.

摘要翻译： 非挥发性半导体存储装置包括多个存储元件组，每个存储元件组具有多个存储元件，每个存储元件具有串联连接的电阻变化元件和肖特基二极管。 每个存储元件组包括：沿层叠方向延伸的第一柱状层; 第一绝缘层，形成在第一柱状层的侧表面上并用作电阻变化元件; 以及经由所述第一绝缘层包围所述第一柱状层的第一导电层。 第一导电层由金属形成。 第一柱状层由具有第一导电层和半导体构成肖特基二极管的杂质浓度的半导体形成。

公开(公告)号：US08120961B2

公开(公告)日：2012-02-21

申请号：US12610703

申请日：2009-11-02

申请人： Ryota Katsumata ,  Masaru Kito ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Hiroyasu Tanaka ,  Yosuke Komori ,  Megumi Ishiduki ,  Hideaki Aochi

发明人： Ryota Katsumata ,  Masaru Kito ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Hiroyasu Tanaka ,  Yosuke Komori ,  Megumi Ishiduki ,  Hideaki Aochi

IPC分类号： G11C11/34

CPC分类号： H01L27/11578 ,  G11C16/0483 ,  H01L27/11582 ,  H01L29/792 ,  H01L29/7926

摘要： A stacked body with a plurality of dielectric films and electrode films alternately stacked therein is provided. The electrode film is divided into a plurality of control gate electrodes extending in one direction. The stacked body is provided with a U-pillar penetrating through the select gate electrodes and the control gate electrodes, having one end connected to a source line, and having the other end connected to a bit line. Moreover, a different potential is applied to uppermost one of the control gate electrodes than that applied to the other control gate electrodes.

摘要翻译： 提供了具有交替层叠的多个电介质膜和电极膜的层叠体。 电极膜被分成沿一个方向延伸的多个控制栅电极。 层叠体设置有穿过选择栅极和控制栅电极的U柱，其一端连接到源极线，并且另一端连接到位线。 此外，与施加到其他控制栅电极相比，控制栅电极的最上一个施加不同的电位。

公开(公告)号：US20110103153A1

公开(公告)日：2011-05-05

申请号：US12851054

申请日：2010-08-05

申请人： Ryota KATSUMATA ,  Hideaki Aochi ,  Hiroyasu Tanaka ,  Masaru Kito ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Yosuke Komori ,  Megumi Ishiduki ,  Junya Matsunami ,  Tomoko Fujiwara ,  Ryouhei Kirisawa ,  Yoshimasa Mikajiri ,  Shigeto Oota

发明人： Ryota KATSUMATA ,  Hideaki Aochi ,  Hiroyasu Tanaka ,  Masaru Kito ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Yosuke Komori ,  Megumi Ishiduki ,  Junya Matsunami ,  Tomoko Fujiwara ,  Ryouhei Kirisawa ,  Yoshimasa Mikajiri ,  Shigeto Oota

IPC分类号： G11C16/06 ,  H01L29/792

CPC分类号： H01L27/11578 ,  G11C16/0466 ,  G11C16/06 ,  H01L27/11565 ,  H01L27/11582

摘要： According to one embodiment, a nonvolatile semiconductor memory device includes a substrate, a stacked body, a semiconductor pillar, a charge storage film, and a drive circuit. The stacked body is provided on the substrate. The stacked body includes a plurality of insulating films alternately stacked with a plurality of electrode films. A through-hole is made in the stacked body to align in a stacking direction. The semiconductor pillar is buried in an interior of the through-hole. The charge storage film is provided between the electrode film and the semiconductor pillar. The drive circuit supplies a potential to the electrode film. The diameter of the through-hole differs by a position in the stacking direction. The drive circuit supplies a potential to reduce a potential difference with the semiconductor pillar as a diameter of the through-hole piercing the electrode film decreases.

摘要翻译： 根据一个实施例，非易失性半导体存储器件包括衬底，堆叠体，半导体柱，电荷存储膜和驱动电路。 层叠体设置在基板上。 层叠体包括交替层叠有多个电极膜的多个绝缘膜。 在堆叠体中形成通孔，以在堆叠方向上对齐。 半导体柱被埋在通孔的内部。 电荷存储膜设置在电极膜和半导体柱之间。 驱动电路为电极膜提供电位。 通孔的直径与层叠方向的位置不同。 当穿透电极膜的通孔的直径减小时，驱动电路提供降低与半导体柱的电位差的电位。

公开(公告)号：US20100327339A1

公开(公告)日：2010-12-30

申请号：US12728727

申请日：2010-03-22

申请人： Hiroyasu TANAKA ,  Ryota Katsumata ,  Hideaki Aochi ,  Masaru Kito ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Yosuke Komori ,  Megumi Ishiduki ,  Junya Matsunami ,  Tomoko Fujiwara ,  Ryouhei Kirisawa ,  Yoshimasa Mikajiri ,  Shigeto Oota

发明人： Hiroyasu TANAKA ,  Ryota Katsumata ,  Hideaki Aochi ,  Masaru Kito ,  Yoshiaki Fukuzumi ,  Masaru Kidoh ,  Yosuke Komori ,  Megumi Ishiduki ,  Junya Matsunami ,  Tomoko Fujiwara ,  Ryouhei Kirisawa ,  Yoshimasa Mikajiri ,  Shigeto Oota

IPC分类号： H01L27/115 ,  H01L21/8246

CPC分类号： H01L27/11578 ,  H01L27/11573 ,  H01L27/11575 ,  H01L27/11582

摘要： A semiconductor memory device provided with a cell array section and a peripheral circuit section, the device includes: a back gate electrode; a stacked body provided on the back gate electrode; a plurality of semiconductor pillars extending in a stacking direction; connection members, each of the connection members connecting one of the semiconductor pillars to another one of the semiconductor pillars; a back-gate electrode contact applying a potential to the back gate electrode; a gate electrode provided in the peripheral circuit section; and a gate electrode contact applying a potential to the gate electrode, the back gate electrode and the gate electrode respectively including: a lower semiconductor layer; a conductive layer provided on the lower semiconductor layer; and an upper semiconductor layer provided on the conductive layer, the connection members being provided in or on the upper semiconductor layer, the back-gate electrode contact and the gate electrode contact being in contact with the conductive layer.

摘要翻译： 一种设置有单元阵列部分和外围电路部分的半导体存储器件，该器件包括：背栅电极; 设置在所述背栅电极上的层叠体; 沿层叠方向延伸的多个半导体柱; 连接构件，每个连接构件将半导体柱之一连接到另一个半导体柱; 向所述背栅电极施加电位的背栅极电极接触; 设置在所述外围电路部中的栅电极; 以及向所述栅电极，所述背栅电极和所述栅电极施加电位的栅电极接触部，分别包括：下半导体层; 设置在下半导体层上的导电层; 以及设置在所述导电层上的上半导体层，所述连接构件设置在所述上​​半导体层中或所述上半导体层上，所述背栅电极接触和所述栅电极接触与所述导电层接触。