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：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：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：US06770520B2

公开(公告)日：2004-08-03

申请号：US10436800

申请日：2003-05-13

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

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

IPC: H01L21337

CPC classification number: H01L29/66825 ,  H01L21/28273 ,  H01L29/42324

Abstract: A floating gate and fabrication method thereof. A semiconductor substrate is provided, on which a gate dielectric layer, a conducting layer, and a patterned hard mask layer are sequentially formed. The surface of the conducting layer is covered by the patterned hard mask layer to form a gate. The conducting layer is etched to a predetermined depth to form an indentation using the patterned hard mask layer as a mask. The conducting layer is oxidized to form an oxide layer on the surface of the conducting layer. The oxide layer and the conducting layer are etched to form multiple tips using the patterned hard mask layer as a mask.

Abstract translation: 浮栅及其制造方法。 提供半导体衬底，其上依次形成栅介电层，导电层和图案化的硬掩模层。 导电层的表面被图案化的硬掩模层覆盖以形成栅极。 使用图案化的硬掩模层作为掩模，将导电层蚀刻到预定深度以形成凹陷。 导电层被氧化以在导电层的表面上形成氧化物层。 使用图案化的硬掩模层作为掩模，蚀刻氧化物层和导电层以形成多个尖端。

公开(公告)号：US07205603B2

公开(公告)日：2007-04-17

申请号：US10764037

申请日：2004-01-23

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.

公开(公告)号：US06872623B2

公开(公告)日：2005-03-29

申请号：US10395991

申请日：2003-03-24

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: 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：US06770532B2

公开(公告)日：2004-08-03

申请号：US10435447

申请日：2003-05-09

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

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

IPC: H01L21336

CPC classification number: H01L29/66583 ,  H01L21/28114 ,  H01L21/823425 ,  H01L21/823437 ,  H01L21/823468 ,  H01L29/42376 ,  H01L29/66553 ,  H01L29/6656

Abstract: A method for fabricating a memory unit with T-shaped gate. A semiconductor substrate forming a dielectric layer, a first opening, and a second opening is provided in a CMOS process. A silicate glass spacer is formed on the sidewall of the first opening and is thermally oxidized to form a light doped area under the silicate glass spacer. The silicate glass spacer is removed. An insulating spacer is formed on the sidewall of the first opening. A first spacer is formed on a sidewall of the second opening. N-type conducting spacers are formed respectively on sidewalls of the insulating spacer and the first spacer. Gate dielectric layers are formed respectively in the first opening and the second opening. A P-type conducting layer fills with the first opening and the second opening, and a second spacer is formed on a sidewall of a conducting spacer of the second opening.

Abstract translation: 一种用于制造具有T形门的存储器单元的方法。 在CMOS工艺中提供形成电介质层，第一开口和第二开口的半导体衬底。 硅酸盐玻璃间隔物形成在第一开口的侧壁上，并被热氧化以在硅酸盐玻璃间隔物下面形成光掺杂区域。 去除硅酸盐玻璃间隔物。 绝缘垫片形成在第一开口的侧壁上。 第一间隔件形成在第二开口的侧壁上。 分别在绝缘间隔物和第一间隔物的侧壁上形成N型导电间隔物。 栅电介质层分别形成在第一开口和第二开口中。 P型导电层填充有第一开口和第二开口，并且第二间隔件形成在第二开口的导电间隔件的侧壁上。

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。