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：US20130203233A1

公开(公告)日：2013-08-08

申请号：US13461921

申请日：2012-05-02

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: H01L28/91 ,  H01L27/10894

Abstract: A manufacturing method of a memory capacitor without a moat structure includes the steps of: providing a semiconductor substrate defined with an array region and a peripheral region; forming a first oxidized layer on the array region; forming a second oxidized layer on the peripheral region; planarizing the first and the second oxidized layers; forming an insulating layer on the first and the second oxidized layers; forming a plurality of trenches on the array region, where the trenches pass through the first oxidized layer and the insulating layer on the first oxidized layer; forming a conductive layer on the side and base surfaces of each trench; removing a portion of the conductive layer and a portion of the insulating layer to form a plurality of notches to expose the first oxidized layer; and removing the first oxidized layers which are exposed from the notches.

Abstract translation: 具有槽护结构的存储电容器的制造方法包括以下步骤：提供限定有阵列区域和周边区域的半导体衬底; 在阵列区域上形成第一氧化层; 在周边区域形成第二氧化层; 平面化第一和第二氧化层; 在所述第一和第二氧化层上形成绝缘层; 在阵列区域上形成多个沟槽，其中沟槽穿过第一氧化层和第一氧化层上的绝缘层; 在每个沟槽的侧面和底面上形成导电层; 去除所述导电层的一部分和所述绝缘层的一部分以形成多个凹口以暴露所述第一氧化层; 以及去除从凹口露出的第一氧化层。

公开(公告)号：US20130168811A1

公开(公告)日：2013-07-04

申请号：US13417438

申请日：2012-03-12

Applicant: TZUNG-HAN LEE ,  CHUNG-LIN HUANG ,  RON-FU CHU

Inventor： TZUNG-HAN LEE ,  CHUNG-LIN HUANG ,  RON-FU CHU

IPC: H01L29/92

CPC classification number: H01L27/1085 ,  H01L28/75 ,  H01L29/92 ,  H01L29/94

Abstract: The instant disclosure relates to a capacitor having multi-layered electrodes. The capacitor includes a dielectric layer having a first surface and a second surface oppositely arranged, a first electrode formed on the first surface, and a second electrode formed on the second surface. At least one of the first and second electrodes having a low band gap material layer formed on the dielectric layer and a conducting layer formed on the low band gap material layer. The band gap of the low band gap material layer is lower than the band gap of the conducting layer.

Abstract translation: 本公开涉及具有多层电极的电容器。 电容器包括具有相对布置的第一表面和第二表面的介电层，形成在第一表面上的第一电极和形成在第二表面上的第二电极。 第一和第二电极中的至少一个具有形成在电介质层上的低带隙材料层和形成在低带隙材料层上的导电层。 低带隙材料层的带隙低于导电层的带隙。

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：US20130062674A1

公开(公告)日：2013-03-14

申请号：US13282771

申请日：2011-10-27

Applicant: TZUNG HAN LEE ,  CHUNG-LIN HUANG ,  RON FU CHU

Inventor： TZUNG HAN LEE ,  CHUNG-LIN HUANG ,  RON FU CHU

IPC: H01L29/82

CPC classification number: H01L27/228 ,  G11C11/161 ,  G11C11/1659 ,  H01L43/08

Abstract: A spin transfer torque random access memory includes a substance unit, a source line unit, an insulation unit, a transistor unit, a MTJ unit, and a bit line unit. The substance unit includes a substance layer. The source line unit includes a plurality of source lines formed inside the substance layer. The transistor unit includes a plurality of transistors respectively disposed on the source lines. Each transistor includes a source region formed on each corresponding source line, a drain region formed above the source region, a channel region formed between the source region and the drain region, and a surrounding gate region surrounding the source region, the drain region, and the channel region. The MTJ unit includes a plurality of MTJ structures respectively disposed on the transistors. The bit line unit includes at least one bit line disposed on the MTJ unit.

Abstract translation: 自旋传递转矩随机存取存储器包括物质单元，源极线单元，绝缘单元，晶体管单元，MTJ单元和位线单元。 物质单元包括物质层。 源极线单元包括形成在物质层内部的多个源极线。 晶体管单元包括分别设置在源极线上的多个晶体管。 每个晶体管包括形成在每个对应源极线上的源极区域，形成在源极区域上方的漏极区域，形成在源极区域和漏极区域之间的沟道区域，以及围绕源极区域，漏极区域和 通道区域。 MTJ单元包括分别设置在晶体管上的多个MTJ结构。 位线单元包括设置在MTJ单元上的至少一个位线。

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。

公开(公告)号：US20130029465A1

公开(公告)日：2013-01-31

申请号：US13240011

申请日：2011-09-22

Applicant: TZUNG HAN LEE ,  CHUNG-LIN HUANG ,  RON FU CHU

Inventor： TZUNG HAN LEE ,  CHUNG-LIN HUANG ,  RON FU CHU

IPC: H01L21/336

CPC classification number: H01L27/10891 ,  H01L21/26586 ,  H01L27/10876 ,  H01L29/4236 ,  H01L29/66545 ,  H01L29/66621

Abstract: The instant disclosure relates to a manufacturing method of memory structure for dynamic random-access memory (DRAM). The method includes the steps of: (a) providing a substrate having a plurality of parallel trenches formed on a planar surface thereof each defining a buried gate, where a first insulating layer is formed on the planar surface of the substrate; (b) forming a gate oxide layer on the surface of each trench that defines the buried gate; (c) disposing a metal filler on the gate oxide layer to fill each of the trenches; (d) removing the metal filler in the upper region of each trench to selectively expose the gate oxide layer; (e) implanting ions at an oblique angle toward the exposed portions of the gate oxide layer in each trench to respectively form a drain electrode and a source electrode in the substrate abreast the gate oxide layer.

Abstract translation: 本公开涉及用于动态随机存取存储器（DRAM）的存储器结构的制造方法。 该方法包括以下步骤：（a）提供具有形成在其平坦表面上的多个平行沟槽的衬底，每个限定掩埋栅极，其中第一绝缘层形成在衬底的平面表面上; （b）在限定所述掩埋栅极的每个沟槽的表面上形成栅氧化层; （c）在栅极氧化物层上设置金属填料以填充每个沟槽; （d）去除每个沟槽的上部区域中的金属填料以选择性地暴露栅极氧化物层; （e）以倾斜角度将离子注入每个沟槽中的栅极氧化层的暴露部分，以分别形成衬底中的漏电极和源电极，并与栅极氧化物层并排。