公开(公告)号：US08659075B2

公开(公告)日：2014-02-25

申请号：US13751902

申请日：2013-01-28

Applicant: Micron Technology, Inc.

Inventor： John Zahurak ,  Sanh D. Tang ,  Gurtej S. Sandhu

IPC: H01L29/66

CPC classification number: H01L21/823487 ,  H01L21/823412 ,  H01L21/823418 ,  H01L27/105 ,  H01L27/24 ,  H01L29/66666 ,  H01L29/7827

Abstract: Methods of forming an array of memory cells and memory cells that have pillars. Individual pillars can have a semiconductor post formed of a bulk semiconductor material and a sacrificial cap on the semiconductor post. Source regions can be between columns of the pillars, and gate lines extend along a column of pillars and are spaced apart from corresponding source regions. Each gate line surrounds a portion of the semiconductor posts along a column of pillars. The sacrificial cap structure can be selectively removed to thereby form self-aligned openings that expose a top portion of corresponding semiconductor posts. Individual drain contacts formed in the self-aligned openings are electrically connected to corresponding semiconductor posts.

Abstract translation: 形成具有支柱的存储器单元阵列和存储单元阵列的方法。 单个柱可以具有由半导体柱上的体半导体材料和牺牲帽形成的半导体柱。 源区可以在柱的列之间，并且栅极线沿着柱柱延伸并且与相应的源极区域间隔开。 每个栅极线沿着一列柱围绕半导体柱的一部分。 可以选择性地去除牺牲帽结构，从而形成露出相应半导体柱的顶部的自对准开口。 形成在自对准开口中的单独的漏极触点电连接到相应的半导体柱。

公开(公告)号：US09117928B2

公开(公告)日：2015-08-25

申请号：US14188536

申请日：2014-02-24

Applicant: Micron Technology, Inc.

Inventor： John Zahurak ,  Sanh Dang Tang ,  Gurtej S. Sandhu

IPC: H01L21/336 ,  H01L21/8234 ,  H01L27/105 ,  H01L27/24 ,  H01L29/66 ,  H01L29/78

CPC classification number: H01L21/823487 ,  H01L21/823412 ,  H01L21/823418 ,  H01L27/105 ,  H01L27/24 ,  H01L29/66666 ,  H01L29/7827

Abstract: Methods of forming an array of memory cells and memory cells that have pillars. Individual pillars can have a semiconductor post formed of a bulk semiconductor material and a sacrificial cap on the semiconductor post. Source regions can be between columns of the pillars, and gate lines extend along a column of pillars and are spaced apart from corresponding source regions. Each gate line surrounds a portion of the semiconductor posts along a column of pillars. The sacrificial cap structure can be selectively removed to thereby form self-aligned openings that expose a top portion of corresponding semiconductor posts. Individual drain contacts formed in the self-aligned openings are electrically connected to corresponding semiconductor posts.

Abstract translation: 形成具有支柱的存储器单元阵列和存储单元阵列的方法。 单个柱可以具有由半导体柱上的体半导体材料和牺牲帽形成的半导体柱。 源区可以在柱的列之间，并且栅极线沿着柱柱延伸并且与相应的源极区域间隔开。 每个栅极线沿着一列柱围绕半导体柱的一部分。 可以选择性地去除牺牲帽结构，从而形成露出相应半导体柱的顶部的自对准开口。 形成在自对准开口中的单独的漏极触点电连接到相应的半导体柱。

公开(公告)号：US20140256098A1

公开(公告)日：2014-09-11

申请号：US14283291

申请日：2014-05-21

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Sanh D. Tang ,  John Zahurak ,  Siddartha Kondoju ,  Haitao Liu ,  Nishant Sinha

IPC: H01L27/112 ,  H01L27/115

CPC classification number: H01L27/11293 ,  H01L21/823885 ,  H01L27/0688 ,  H01L27/101 ,  H01L27/105 ,  H01L27/1052 ,  H01L27/11206 ,  H01L27/11517 ,  H01L27/11524 ,  H01L27/11551 ,  H01L27/11563 ,  H01L27/11578 ,  H01L29/66825 ,  H01L29/66833 ,  H01L29/7881 ,  H01L29/792

Abstract: Memories and their formation are disclosed. One such memory has a first array of first memory cells extending in a first direction from a first surface of a semiconductor. A second array of second memory cells extends in a second direction, opposite to the first direction, from a second surface of the semiconductor. Both arrays may be non-volatile memory arrays. For example, one of the memory arrays may be a NAND flash memory array, while the other may be a one-time-programmable memory array.

Abstract translation: 记忆及其形成被披露。 一个这样的存储器具有从半导体的第一表面沿第一方向延伸的第一存储单元阵列。 第二阵列的第二存储单元从与半导体的第二表面在第二方向相反的第二方向延伸。 两个阵列可以是非易失性存储器阵列。 例如，存储器阵列之一可以是NAND快闪存储器阵列，而另一个可以是一次可编程存储器阵列。

公开(公告)号：US20140170822A1

公开(公告)日：2014-06-19

申请号：US14188536

申请日：2014-02-24

Applicant: Micron Technology, Inc.

Inventor： John Zahurak ,  Sanh Dang Tang ,  Gurtej S. Sandhu

IPC: H01L21/8234

CPC classification number: H01L21/823487 ,  H01L21/823412 ,  H01L21/823418 ,  H01L27/105 ,  H01L27/24 ,  H01L29/66666 ,  H01L29/7827

Abstract: Methods of forming an array of memory cells and memory cells that have pillars. Individual pillars can have a semiconductor post formed of a bulk semiconductor material and a sacrificial cap on the semiconductor post. Source regions can be between columns of the pillars, and gate lines extend along a column of pillars and are spaced apart from corresponding source regions. Each gate line surrounds a portion of the semiconductor posts along a column of pillars. The sacrificial cap structure can be selectively removed to thereby form self-aligned openings that expose a top portion of corresponding semiconductor posts. Individual drain contacts formed in the self-aligned openings are electrically connected to corresponding semiconductor posts.

Abstract translation: 形成具有支柱的存储器单元阵列和存储单元阵列的方法。 单个柱可以具有由半导体柱上的体半导体材料和牺牲帽形成的半导体柱。 源区可以在柱的列之间，并且栅极线沿着柱柱延伸并且与相应的源极区域间隔开。 每个栅极线沿着一列柱围绕半导体柱的一部分。 可以选择性地去除牺牲帽结构，从而形成露出相应半导体柱的顶部的自对准开口。 形成在自对准开口中的单独的漏极触点电连接到相应的半导体柱。

公开(公告)号：US20130134503A1

公开(公告)日：2013-05-30

申请号：US13751902

申请日：2013-01-28

Applicant: Micron Technology, Inc.

Inventor： John Zahurak ,  Sanh D. Tang ,  Gurtej S. Sandhu

IPC: H01L29/78

CPC classification number: H01L21/823487 ,  H01L21/823412 ,  H01L21/823418 ,  H01L27/105 ,  H01L27/24 ,  H01L29/66666 ,  H01L29/7827

Abstract: Methods of forming an array of memory cells and memory cells that have pillars. Individual pillars can have a semiconductor post formed of a bulk semiconductor material and a sacrificial cap on the semiconductor post. Source regions can be between columns of the pillars, and gate lines extend along a column of pillars and are spaced apart from corresponding source regions. Each gate line surrounds a portion of the semiconductor posts along a column of pillars. The sacrificial cap structure can be selectively removed to thereby form self-aligned openings that expose a top portion of corresponding semiconductor posts. Individual drain contacts formed in the self-aligned openings are electrically connected to corresponding semiconductor posts.

Abstract translation: 形成具有支柱的存储器单元阵列和存储单元阵列的方法。 单个柱可以具有由半导体柱上的体半导体材料和牺牲帽形成的半导体柱。 源区可以在柱的列之间，并且栅极线沿着柱柱延伸并且与相应的源极区域间隔开。 每个栅极线沿着一列柱围绕半导体柱的一部分。 可以选择性地去除牺牲帽结构，从而形成露出相应半导体柱的顶部的自对准开口。 形成在自对准开口中的单独的漏极触点电连接到相应的半导体柱。

公开(公告)号：US09312266B2

公开(公告)日：2016-04-12

申请号：US14283291

申请日：2014-05-21

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Sanh D. Tang ,  John Zahurak ,  Siddartha Kondoju ,  Haitao Liu ,  Nishant Sinha

IPC: H01L27/112 ,  H01L27/06 ,  H01L27/10 ,  H01L27/105 ,  H01L27/115 ,  H01L29/66 ,  H01L29/788 ,  H01L29/792 ,  H01L21/8238

CPC classification number: H01L27/11293 ,  H01L21/823885 ,  H01L27/0688 ,  H01L27/101 ,  H01L27/105 ,  H01L27/1052 ,  H01L27/11206 ,  H01L27/11517 ,  H01L27/11524 ,  H01L27/11551 ,  H01L27/11563 ,  H01L27/11578 ,  H01L29/66825 ,  H01L29/66833 ,  H01L29/7881 ,  H01L29/792

Abstract: Memories and their formation are disclosed. One such memory has a first array of first memory cells extending in a first direction from a first surface of a semiconductor. A second array of second memory cells extends in a second direction, opposite to the first direction, from a second surface of the semiconductor. Both arrays may be non-volatile memory arrays. For example, one of the memory arrays may be a NAND flash memory array, while the other may be a one-time-programmable memory array.

Abstract translation: 记忆及其形成被披露。 一个这样的存储器具有从半导体的第一表面沿第一方向延伸的第一存储单元阵列。 第二阵列的第二存储单元从与半导体的第二表面在第二方向相反的第二方向延伸。 两个阵列可以是非易失性存储器阵列。 例如，存储器阵列之一可以是NAND快闪存储器阵列，而另一个可以是一次可编程存储器阵列。