公开(公告)号：US20100013062A1

公开(公告)日：2010-01-21

申请号：US12244295

申请日：2008-10-02

Applicant: Shin-Bin Huang ,  Ching-Nan Hsiao ,  Chung-Lin Huang

Inventor： Shin-Bin Huang ,  Ching-Nan Hsiao ,  Chung-Lin Huang

IPC: H01L23/58 ,  H01L21/31

CPC classification number: H01L27/11521 ,  H01L21/3185 ,  H01L29/42324 ,  H01L29/66825

Abstract: A nonvolatile memory cell is provided. A semiconductor substrate is provided. A conducting layer and a spacer layer are sequentially disposed above the semiconductor substrate. At least a trench having a bottom and plural side surfaces is defined in the conducting layer and the spacer layer. A first oxide layer is formed at the bottom of the trench. A dielectric layer is formed on the first oxide layer, the spacer layer and the plural side surfaces of the trench. A first polysilicon layer is formed in the trench. And a first portion of the dielectric layer on the spacer layer is removed, so that a basic structure for the nonvolatile memory cell is formed.

Abstract translation: 提供非易失性存储单元。 提供半导体衬底。 导电层和间隔层顺序地设置在半导体衬底之上。 在导电层和间隔层中限定具有底部和多个侧表面的至少一个沟槽。 第一氧化物层形成在沟槽的底部。 在第一氧化物层，间隔层和沟槽的多个侧表面上形成介电层。 在沟槽中形成第一多晶硅层。 并且去除间隔层上的电介质层的第一部分，从而形成用于非易失性存储单元的基本结构。

公开(公告)号：US20130146954A1

公开(公告)日：2013-06-13

申请号：US13429448

申请日：2012-03-26

Applicant: Tzung-Han Lee ,  Chung-Lin Huang ,  Ron Fu Chu

Inventor： Tzung-Han Lee ,  Chung-Lin Huang ,  Ron Fu Chu

IPC: H01L27/088 ,  H01L21/336

CPC classification number: H01L27/0207 ,  H01L27/10876 ,  H01L27/10885

Abstract: The present invention provides a memory array including a substrate, an isolation region, a plurality of active regions, a plurality of buried bit lines, a plurality of word lines, a plurality of drain regions and a plurality of capacitors. The isolation region and the active regions are disposed in the substrate and the active regions are encompassed and isolated by the isolation region. The buried bit lines are disposed in the substrate and extend in the second direction. The word lines are disposed in the substrate extend in the first direction. The drain regions are disposed in the active region not covered by the word lines. The capacitors are disposed on the substrate and electrically connected to the drain regions.

Abstract translation: 本发明提供了一种存储器阵列，其包括衬底，隔离区，多个有源区，多个掩埋位线，多个字线，多个漏极区和多个电容。 隔离区域和有源区域设置在衬底中，并且有源区域被隔离区域包围和隔离。 掩埋位线设置在基板中并沿第二方向延伸。 字线设置在基板中沿第一方向延伸。 漏极区域设置在未被字线覆盖的有源区域中。 电容器设置在基板上并电连接到漏极区域。

公开(公告)号：US07682902B2

公开(公告)日：2010-03-23

申请号：US11949786

申请日：2007-12-04

Applicant: Ching-Nan Hsiao ,  Pei-Ing Lee ,  Ming-Cheng Chang ,  Chung-Lin Huang ,  Hsi-Hua Chang ,  Chih-Hsiang Wu

Inventor： Ching-Nan Hsiao ,  Pei-Ing Lee ,  Ming-Cheng Chang ,  Chung-Lin Huang ,  Hsi-Hua Chang ,  Chih-Hsiang Wu

IPC: H01L21/336

CPC classification number: H01L27/11534 ,  H01L21/84 ,  H01L27/11526 ,  H01L29/42336 ,  H01L29/66825 ,  H01L29/7887

Abstract: A memory structure disclosed in the present invention features a control gate and floating gates being positioned in recessed trenches. A method of fabricating the memory structure includes the steps of first providing a substrate having a first recessed trench. Then, a first gate dielectric layer is formed on the first recessed trench. A first conductive layer is formed on the first gate dielectric layer. After that, the first conductive layer is etched to form a spacer which functions as a floating gate on a sidewall of the first recessed trench. A second recessed trench is formed in a bottom of the first recessed trench. An inter-gate dielectric layer is formed on a surface of the spacer, a sidewall and a bottom of the second recessed trench. A second conductive layer formed to fill up the first and the second recessed trench.

Abstract translation: 本发明公开的存储器结构的特征在于控制栅极和位于凹槽中的浮栅。 一种制造存储器结构的方法包括以下步骤：首先提供具有第一凹槽的衬底。 然后，在第一凹槽上形成第一栅极电介质层。 第一导电层形成在第一栅极介电层上。 之后，蚀刻第一导电层以形成用作第一凹槽的侧壁上的浮动栅极的间隔物。 在第一凹槽的底部形成第二凹槽。 在间隔物的表面，第二凹槽的侧壁和底部上形成栅极间电介质层。 形成为填充第一和第二凹槽的第二导电层。

公开(公告)号：US06921694B2

公开(公告)日：2005-07-26

申请号：US10442308

申请日：2003-05-19

Applicant: Ying-Cheng Chuang ,  Chung-Lin Huang ,  Chi-Hui Lin

Inventor： Ying-Cheng Chuang ,  Chung-Lin Huang ,  Chi-Hui Lin

IPC: H01L21/28 ,  H01L29/423 ,  H01L21/336

CPC classification number: H01L29/42324 ,  H01L21/28273

Abstract: A method for fabricating a floating gate with multiple tips. A semiconductor substrate is provided, on which an insulating layer and a patterned hard mask layer are sequentially formed. The patterned hard mask layer has an opening to expose the surface of the semiconductor substrate. A conducting layer is conformally formed on the patterned hard mask layer, and the opening is filled with the conducting layer. The conducting layer is planarized to expose the surface of the patterned hard mask layer. The conducting layer is thermally oxidized to form an oxide layer, and the patterned hard mask layer is removed.

Abstract translation: 一种用于制造具有多个尖端的浮动栅极的方法。 提供半导体衬底，其上依次形成绝缘层和图案化的硬掩模层。 图案化的硬掩模层具有露出半导体衬底的表面的开口。 在图案化的硬掩模层上共形形成导电层，并且该开口填充有导电层。 导电层被平坦化以暴露图案化的硬掩模层的表面。 导电层被热氧化以形成氧化物层，去除图案化的硬掩模层。

公开(公告)号：US06768164B2

公开(公告)日：2004-07-27

申请号：US10725052

申请日：2003-12-01

Applicant: Chi-Hui Lin ,  Chung-Lin Huang

Inventor： Chi-Hui Lin ,  Chung-Lin Huang

IPC: H01L29788

CPC classification number: H01L27/11521 ,  H01L27/115 ,  H01L29/42336 ,  H01L29/66825 ,  H01L29/7883

Abstract: A stacked gate flash memory device and method of fabricating the same. A cell of the stacked gate flash memory device in accordance with the invention is disposed in a cell trench within a substrate and source and drain regions are formed in the same substrate side of the adjacent isolation trenches. Thus, the stacked gate flash memory device of the invention can achieve high integration of memory cells.

公开(公告)号：US06451654B1

公开(公告)日：2002-09-17

申请号：US10029429

申请日：2001-12-18

Applicant: Chi-Hui Lin ,  Chung-Lin Huang ,  Yung-Meng Huang

Inventor： Chi-Hui Lin ,  Chung-Lin Huang ,  Yung-Meng Huang

IPC: H01L218247

CPC classification number: H01L27/11521 ,  H01L27/115

Abstract: The present invention provides a process for fabricating a self-aligned split gate flash memory. First, a patterned gate oxide layer, a first patterned polysilicon layer, and a first patterned mask layer are successively formed on a semiconductor substrate, and a first insulating spacer is formed on their sidewalls. Then, shallow trench isolation (STI) is formed in the substrate using the first patterned mask layer and the first insulating spacer as a mask. Then, the first patterned mask layer and a part of the first insulating spacer are removed to expose the first patterned polysilicon layer. A floating gate region is defined on the first patterned polysilicon layer, and the surface of the first polysilicon layer in the floating gate region is selectively oxidized to form polysilicon oxide layer. Then, the polysilicon oxide layer is used as a mask to remove the underlying first polysilicon layer in a self-aligned manner to form a floating gate. Finally, an intergate insulating layer and a second patterned polysilicon layer as a control gate are succesively formed on the polysilicon oxide layer. The present invention forms a floating gate in a self-aligned manner, which can decreases critical dimension. When an oxidation process is conducted to form the above polysilicon oxide layer, the nitride liner layer and the insulating spacer formed in the trench protect the sides of floating gate from oxygen invasion. This prevents the line width of floating gate from size reduction. Current leakage is also be avoided.

Abstract translation: 本发明提供一种用于制造自对准分离栅闪存的方法。 首先，在半导体衬底上依次形成图案化栅极氧化物层，第一图案化多晶硅层和第一图案化掩模层，并且在其侧壁上形成第一绝缘间隔物。 然后，使用第一图案化掩模层和第一绝缘间隔物作为掩模在衬底中形成浅沟槽隔离（STI）。 然后，去除第一图案化掩模层和第一绝缘间隔物的一部分以露出第一图案化多晶硅层。 在第一图案化多晶硅层上限定浮栅区域，并且浮栅区域中的第一多晶硅层的表面被选择性地氧化以形成多晶硅氧化物层。 然后，将多晶硅氧化物层用作掩模，以自对准的方式去除下面的第一多晶硅层以形成浮动栅极。 最后，在多晶硅氧化物层上连续地形成作为控制栅极的栅极绝缘层和第二图案化多晶硅层。 本发明以自对准的方式形成浮动栅极，这可以降低临界尺寸。 当进行氧化处理以形成上述多晶硅氧化物层时，形成在沟槽中的氮化物衬垫层和绝缘衬垫保护浮动栅极的侧面免受氧气侵入。 这样可以防止浮动栅极的线宽缩小。 电流泄漏也被避免。

公开(公告)号：US08779494B2

公开(公告)日：2014-07-15

申请号：US13426825

申请日：2012-03-22

Applicant: Tzung-Han Lee ,  Chung-Lin Huang ,  Ron-Fu Chu

Inventor： Tzung-Han Lee ,  Chung-Lin Huang ,  Ron-Fu Chu

IPC: H01L29/94

CPC classification number: H01L27/10873 ,  H01L27/10885 ,  H01L27/10891

Abstract: The instant disclosure relates to a high-k metal gate random access memory. The memory includes a substrate, a plurality of bit line units, source regions, gate structures, drain regions, word line units, and capacitance units. The substrate has a plurality of trenches, and the bit line units are arranged on the substrate. The source regions are disposed on the bit line units, and the gate structures are disposed on the source regions. Each gate structure has a metal gate and a channel area formed therein. The gate structures are topped with the drain regions. The word lines units are arranged between the source and drain regions. The capacitance units are disposed on the drain regions. Another memory is also disclosed, where each drain region and a portion of each gate structure are disposed in the respective capacitance unit, with the drain region being a lower electrode layer.

Abstract translation: 本公开涉及高k金属栅极随机存取存储器。 存储器包括衬底，多个位线单元，源极区，栅极结构，漏极区，字线单元和电容单元。 衬底具有多个沟槽，并且位线单元布置在衬底上。 源极区域设置在位线单元上，栅极结构设置在源极区域上。 每个栅极结构具有形成在其中的金属栅极和沟道区域。 栅极结构顶部带有漏极区域。 字线单元布置在源区和漏区之间。 电容单元设置在漏极区域上。 还公开了另一种存储器，其中每个漏极区域和每个栅极结构的一部分设置在相应的电容单元中，漏极区域是下部电极层。

公开(公告)号：US08703562B2

公开(公告)日：2014-04-22

申请号：US13426832

申请日：2012-03-22

Applicant: Tzung-Han Lee ,  Chung-Lin Huang ,  Ron-Fu Chu

Inventor： Tzung-Han Lee ,  Chung-Lin Huang ,  Ron-Fu Chu

IPC: H01L21/8238

CPC classification number: H01L27/10894 ,  H01L27/10823 ,  H01L27/10876 ,  H01L27/10885

Abstract: A manufacturing method of a random access memory includes the following steps: providing a semiconductor structure having an array region and a peripheral region; forming a plurality of first trenches in the array region, and concurrently, a plurality of second trenches on the peripheral region; forming a polysilicon layer to cover the array region and the peripheral region, and the first and the second trenches are filled up with the polysilicon layer; planarizing the polysilicon layer so the remaining polysilicon layer only resides in the first and the second trenches; forming a conductive layer on the semiconductor structure; patterning the conductive layer to form a plurality of landing pads on the array region, and a plurality of bit line units on the peripheral region; and forming a plurality of capacitor units which is in electrical connection to the landing pads.

Abstract translation: 随机存取存储器的制造方法包括以下步骤：提供具有阵列区域和周边区域的半导体结构; 在阵列区域中形成多个第一沟槽，同时在周边区域上形成多个第二沟槽; 形成多晶硅层以覆盖阵列区域和外围区域，并且第一和第二沟槽被多晶硅层填充; 平坦化多晶硅层，使得剩余的多晶硅层仅驻留在第一和第二沟槽中; 在半导体结构上形成导电层; 图案化导电层以在阵列区域上形成多个着陆焊盘，以及在周边区域上形成多个位线单元; 以及形成与所述着陆焊盘电连接的多个电容器单元。

公开(公告)号：US20130119448A1

公开(公告)日：2013-05-16

申请号：US13343668

申请日：2012-01-04

Applicant: Tzung-Han Lee ,  Chung-Lin Huang ,  Ron Fu Chu

Inventor： Tzung-Han Lee ,  Chung-Lin Huang ,  Ron Fu Chu

IPC: H01L27/108

CPC classification number: H01L27/10823 ,  H01L27/10855 ,  H01L27/10876 ,  H01L27/10891 ,  H01L28/90

Abstract: A memory array layout includes an active region array having a plurality of active regions, wherein the active regions are arranged alternatively along a second direction and parts of the side of the adjacent active regions are overlapped along a second direction; a plurality of first doped region, wherein each first doped region is disposed in a middle region; a plurality of second doped region, wherein each second doped region is disposed in a distal end region respectively; a plurality of recessed gate structures; a plurality of word lines electrically connected to each recessed gate structure respectively; a plurality of digit lines electrically connected to the first doped region respectively; and a plurality of capacitors electrically connected to each second doped region respectively.

Abstract translation: 存储器阵列布局包括具有多个有源区域的有源区域阵列，其中有源区域沿着第二方向交替布置，并且相邻有源区域的一部分侧沿第二方向重叠; 多个第一掺杂区域，其中每个第一掺杂区域设置在中间区域中; 多个第二掺杂区域，其中每个第二掺杂区域分别设置在远端区域中; 多个凹入栅结构; 分别电连接到每个凹入栅结构的多个字线; 分别电连接到第一掺杂区的多个数字线; 以及分别与每个第二掺杂区域电连接的多个电容器。

公开(公告)号：US20130052786A1

公开(公告)日：2013-02-28

申请号：US13297276

申请日：2011-11-16

Applicant: Tzung-Han Lee ,  Chung-Lin Huang ,  Ron Fu Chu

Inventor： Tzung-Han Lee ,  Chung-Lin Huang ,  Ron Fu Chu

IPC: H01L21/02

CPC classification number: H01L27/10894 ,  H01L27/10855 ,  H01L27/10876 ,  H01L27/10888 ,  H01L29/66545

Abstract: A fabricating method of a DRAM structure includes providing a substrate comprising a memory array region and a peripheral region. A buried gate transistor is disposed within the memory array region, and a planar gate transistor is disposed within the peripheral region. Furthermore, an interlayer dielectric layer covers the memory array region, the buried gate transistor and the planar gate transistor. Then, a capping layer of the planar gate transistor and part of the interlayer dielectric layer are removed simultaneously so that a first contact hole, a second contact hole and a third contact hole are formed in the interlayer dielectric layer. A drain doping region of the buried gate transistor is exposed through the first contact hole, a doping region of the planar gate transistor is exposed through the second contact hole, and a gate electrode of the planar gate transistor is exposed through the third contact hole.

Abstract translation: DRAM结构的制造方法包括提供包括存储器阵列区域和外围区域的衬底。 掩埋栅极晶体管设置在存储器阵列区域内，并且平面栅极晶体管设置在周边区域内。 此外，层间电介质层覆盖存储器阵列区域，掩埋栅极晶体管和平面栅极晶体管。 然后，同时去除平面栅晶体管的覆盖层和层间电介质层的一部分，使得在层间电介质层中形成第一接触孔，第二接触孔和第三接触孔。 埋入栅极晶体管的漏极掺杂区域通过第一接触孔露出，平面栅极晶体管的掺杂区域通过第二接触孔露出，平面栅极晶体管的栅电极通过第三接触孔露出。