公开(公告)号：US20070063260A1

公开(公告)日：2007-03-22

申请号：US11603771

申请日：2006-11-22

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

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

IPC: H01L29/788

CPC classification number: H01L27/11521 ,  H01L21/28273 ,  H01L29/42324 ,  H01L29/7881

Abstract: A floating gate and fabrication method thereof. A semiconductor substrate is provided, on which an oxide layer, a first conducting layer, and a patterned hard mask layer having an opening are sequentially formed. A spacer is formed on the sidewall of the opening. A second conducting layer is formed on the hard mask layer. The second conducting layer is planarized to expose the surface of the patterned hard mask layer. The surface of the second conducting layer is oxidized to form an oxide layer. The patterned hard mask layer and the oxide layer and the first conducting layer underlying the patterned hard mask layer are removed.

Abstract translation: 浮栅及其制造方法。 提供了半导体衬底，其上依次形成有氧化物层，第一导电层和具有开口的图案化硬掩模层。 间隔件形成在开口的侧壁上。 在硬掩模层上形成第二导电层。 将第二导电层平坦化以暴露图案化硬掩模层的表面。 第二导电层的表面被氧化形成氧化物层。 图案化的硬掩模层和氧化物层以及图案化的硬掩模层下面的第一导电层被去除。

公开(公告)号：US06900112B2

公开(公告)日：2005-05-31

申请号：US10426348

申请日：2003-04-30

Applicant: Chi-Hui Lin ,  Chung-Lin Huang

Inventor： Chi-Hui Lin ,  Chung-Lin Huang

IPC: H01L21/762 ,  H01L21/76

CPC classification number: H01L21/76224

Abstract: A process for forming shallow trench isolation region with corner protection layer. A protection layer is formed within the opening that defines the isolation trench as part of the etching mask such that the etching rate of the protection layer is less than the mask layer and the pad insulating layer to the etchant used to remove the mask layer and pad insulating layer. The protection layer is partially removed and left adjacent to the shallow trench isolation region as a corner protection layer after removing the mask layer and pad insulating layer. Thus, the indentation next to the corner of the isolation region is avoided.

Abstract translation: 用于形成具有角保护层的浅沟槽隔离区的工艺。 在开口内形成保护层，其将隔离沟槽定义为蚀刻掩模的一部分，使得保护层的蚀刻速率小于用于去除掩模层和焊盘的掩模层和蚀刻剂的焊盘绝缘层 绝缘层。 在去除掩模层和焊盘绝缘层之后，保护层被部分地去除并且与作为转角保护层的浅沟槽隔离区相邻。 因此，避免了隔离区域的拐角附近的压痕。

公开(公告)号：US20050101090A1

公开(公告)日：2005-05-12

申请号：US11014483

申请日：2004-12-15

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 ,  H01L29/40114

Abstract: A floating gate with multiple tips and a fabrication method thereof. A semiconductor substrate is provided, on which a patterned hard mask layer is formed, wherein the patterned hard mask layer has an opening. A gate dielectric layer and a first conducting layer with a first predetermined thickness are formed on the bottom of the opening. A spacer is formed on the sidewall of the opening. A conducting spacer is formed on the sidewall of the spacer. The first conducting layer is etched to a second predetermined thickness. A multi-tip floating gate is provided by the first conducting layer and the conducting spacer. A protecting layer is formed in the opening. The patterned hard mask layer, the gate dielectric layer, a portion of the protecting layer, and a portion of the first spacer are etched to expose the surface of the first conducting layer.

Abstract translation: 具有多个尖端的浮动栅极及其制造方法。 提供半导体衬底，在其上形成图案化的硬掩模层，其中图案化的硬掩模层具有开口。 在开口的底部形成具有第一预定厚度的栅介质层和第一导电层。 间隔件形成在开口的侧壁上。 导电间隔件形成在间隔件的侧壁上。 第一导电层被蚀刻到第二预定厚度。 由第一导电层和导电间隔物提供多尖端浮栅。 在开口中形成保护层。 蚀刻图案化的硬掩模层，栅介质层，保护层的一部分和第一间隔物的一部分，以露出第一导电层的表面。

公开(公告)号：US06800526B2

公开(公告)日：2004-10-05

申请号：US10302865

申请日：2002-11-25

Applicant: Chi-Hui Lin ,  Chung-Lin Huang ,  Cheng-Chih Huang

Inventor： Chi-Hui Lin ,  Chung-Lin Huang ,  Cheng-Chih Huang

IPC: H01L21336

CPC classification number: H01L29/42332 ,  H01L21/28273

Abstract: A method for manufacturing a split-gate flash memory cell, comprising the steps of forming an active region on a semiconductor substrate; forming a buffer layer on the semiconductor substrate; forming a first dielectric layer on the buffer layer; removing part of the first dielectric layer; defining an opening; removing the buffer layer within the opening; forming a gate insulating layer and floating gates; forming a source region in the semiconductor substrate; depositing a conformal second dielectric layer on the opening; removing the buffer layer outside the first dielectric layer and the floating gates; and forming an oxide layer and control gates.

Abstract translation: 一种分离栅闪存单元的制造方法，包括以下步骤：在半导体衬底上形成有源区; 在半导体衬底上形成缓冲层; 在缓冲层上形成第一介电层; 去除所述第一电介质层的一部分; 定义一个开口 去除开口内的缓冲层; 形成栅绝缘层和浮栅; 在所述半导体衬底中形成源区; 在开口上沉积共形的第二介电层; 去除第一介电层和浮栅之外的缓冲层; 并形成氧化物层和控制栅极。

公开(公告)号：US06673676B2

公开(公告)日：2004-01-06

申请号：US10229529

申请日：2002-08-27

Applicant: Chi-Hui Lin ,  Chung-Lin Huang ,  Cheng-Chih Huang

Inventor： Chi-Hui Lin ,  Chung-Lin Huang ,  Cheng-Chih Huang

IPC: H01L21336

CPC classification number: H01L27/11521 ,  H01L27/115

Abstract: A method of fabricating a flash memory cell. The method includes the steps of providing a semiconductor substrate; forming a first gate insulating layer; forming a first conductive layer on the first gate insulating layer; forming a floating gate insulating layer; forming a source region by implanting impurity ions into the substrate; forming a second insulating layer; forming a floating gate region; forming a third insulating; forming a second conductive layer on the third insulating layer; forming a fourth insulating layer on the second conductive layer; forming a floating gate region; forming a second conductive layer on the third insulating layer; forming first sidewall spacers; forming control gates and a tunneling oxide; forming second sidewall spacers; and forming a drain region on the substrate.

Abstract translation: 一种制造闪存单元的方法。 该方法包括提供半导体衬底的步骤; 形成第一栅极绝缘层; 在所述第一栅极绝缘层上形成第一导电层; 形成浮栅绝缘层; 通过将杂质离子注入衬底来形成源区; 形成第二绝缘层; 形成浮栅区域; 形成第三绝缘层; 在所述第三绝缘层上形成第二导电层; 在所述第二导电层上形成第四绝缘层; 形成浮栅区域; 在所述第三绝缘层上形成第二导电层; 形成第一侧壁间隔物; 形成控制栅极和隧道氧化物; 形成第二侧壁间隔物; 以及在所述衬底上形成漏区。

公开(公告)号：US07323743B2

公开(公告)日：2008-01-29

申请号：US11603771

申请日：2006-11-22

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

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

IPC: H01L29/788

CPC classification number: H01L27/11521 ,  H01L21/28273 ,  H01L29/42324 ,  H01L29/7881

Abstract: A floating gate and fabrication method thereof. A semiconductor substrate is provided, on which an oxide layer, a first conducting layer, and a patterned hard mask layer having an opening are sequentially formed. A spacer is formed on the sidewall of the opening. A second conducting layer is formed on the hard mask layer. The second conducting layer is planarized to expose the surface of the patterned hard mask layer. The surface of the second conducting layer is oxidized to form an oxide layer. The patterned hard mask layer and the oxide layer and the first conducting layer underlying the patterned hard mask layer are removed.

Abstract translation: 浮栅及其制造方法。 提供了半导体衬底，其上依次形成有氧化物层，第一导电层和具有开口的图案化硬掩模层。 间隔件形成在开口的侧壁上。 在硬掩模层上形成第二导电层。 将第二导电层平坦化以暴露图案化硬掩模层的表面。 第二导电层的表面被氧化形成氧化物层。 图案化的硬掩模层和氧化物层以及图案化的硬掩模层下面的第一导电层被去除。

公开(公告)号：US07005701B2

公开(公告)日：2006-02-28

申请号：US10318551

申请日：2002-12-13

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

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

IPC: H01L29/76 ,  H01L39/94 ,  H01L31/062 ,  H01L31/113 ,  H01L31/119

CPC classification number: H01L27/11568 ,  H01L27/115

Abstract: A method for fabricating a vertical nitride read-only memory (NROM) cell. A substrate having at least one trench is provided. A spacer is formed over the sidewall of the trench. Subsequently, ion implantation is performed on the substrate using the spacer as a mask to form doping areas as bit lines in the substrate near its surface and the bottom of the trench. Bit line oxides are formed over each of the doping areas. After the spacer is removed, a conformable insulating layer as gate dielectric is deposited on the sidewall of the trench and the surface of the bit line oxide. Finally, a conductive layer as a word line is deposited over the insulating layer and fills in the trench.

Abstract translation: 一种用于制造垂直氮化物只读存储器（NROM）单元的方法。 提供具有至少一个沟槽的衬底。 间隔件形成在沟槽的侧壁上。 随后，使用间隔物作为掩模在衬底上进行离子注入，以在沟槽的表面和底部附近的衬底中形成作为位线的掺杂区域。 在每个掺杂区域上形成位线氧化物。 在移除间隔物之后，在沟槽的侧壁和位线氧化物的表面上沉积作为栅极电介质的适形绝缘层。 最后，作为字线的导电层沉积在绝缘层上并填充在沟槽中。

公开(公告)号：US06916715B2

公开(公告)日：2005-07-12

申请号：US10694155

申请日：2003-10-27

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

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

IPC: H01L21/336 ,  H01L21/8234 ,  H01L21/8246 ,  H01L27/115 ,  H01L27/148

CPC classification number: H01L27/11568 ,  H01L27/115

Abstract: A method for fabricating a vertical nitride read-only memory (NROM) cell. A substrate having at least one trench is provided. A spacer is formed over the sidewall of the trench. Subsequently, ion implantation is performed on the substrate using the spacer as a mask to form doping areas as bit lines in the substrate near its surface and the bottom of the trench. Bit line oxides are formed over each of the doping areas. After the spacer is removed, a conformable insulating layer as gate dielectric is deposited on the sidewall of the trench and the surface of the bit line oxide. Finally, a conductive layer as a word line is deposited over the insulating layer and fills in the trench.

Abstract translation: 一种用于制造垂直氮化物只读存储器（NROM）单元的方法。 提供具有至少一个沟槽的衬底。 间隔件形成在沟槽的侧壁上。 随后，使用间隔物作为掩模在衬底上进行离子注入，以在沟槽的表面和底部附近的衬底中形成作为位线的掺杂区域。 在每个掺杂区域上形成位线氧化物。 在移除间隔物之后，在沟槽的侧壁和位线氧化物的表面上沉积作为栅极电介质的适形绝缘层。 最后，作为字线的导电层沉积在绝缘层上并填充在沟槽中。

公开(公告)号：US06847068B2

公开(公告)日：2005-01-25

申请号：US10441801

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 ,  H01L21/8242

CPC classification number: H01L29/42324 ,  H01L21/28273

Abstract: A floating gate with multiple tips and a fabrication method thereof. A semiconductor substrate is provided, on which a patterned hard mask layer is formed, wherein the patterned hard mask layer has an opening. A gate dielectric layer and a first conducting layer with a first predetermined thickness are formed on the bottom of the opening. A spacer is formed on the sidewall of the opening. A conducting spacer is formed on the sidewall of the spacer. The first conducting layer is etched to a second predetermined thickness. A multi-tip floating gate is provided by the first conducting layer and the conducting spacer. A protecting layer is formed in the opening. The patterned hard mask layer, the gate dielectric layer, a portion of the protecting layer, and a portion of the first spacer are etched to expose the surface of the first conducting layer.

公开(公告)号：US06815290B2

公开(公告)日：2004-11-09

申请号：US10457867

申请日：2003-06-10

Applicant: Chi-Hui Lin ,  Chung-Lin Huang

Inventor： Chi-Hui Lin ,  Chung-Lin Huang

IPC: H01L21336

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.