公开(公告)号：US10020385B2

公开(公告)日：2018-07-10

申请号：US14220122

申请日：2014-03-19

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Yi-Shan Chiu ,  Shen-De Wang ,  Zhen Chen ,  Yuan-Hsiang Chang ,  Chih-Chien Chang ,  Jianjun Yang ,  Wei Ta

IPC: H01L29/792 ,  H01L29/66 ,  H01L29/423 ,  H01L27/1157

CPC classification number: H01L29/66833 ,  H01L27/1157 ,  H01L29/42344 ,  H01L29/792

Abstract: The present invention provides a memory cell, which includes a substrate, a gate dielectric layer, a patterned material layer, a selection gate and a control gate. The gate dielectric layer is disposed on the substrate. The patterned material layer is disposed on the substrate, wherein the patterned material layer comprises a vertical portion and a horizontal portion. The selection gate is disposed on the gate dielectric layer and atone side of the vertical portion of the patterned material layer. The control gate is disposed on the horizontal portion of the patterned material layer and at another side of the vertical portion, wherein the vertical portion protrudes over a top of the selection gate. The present invention further provides another embodiment of a memory cell and manufacturing methods thereof.

公开(公告)号：US09224857B2

公开(公告)日：2015-12-29

申请号：US13674146

申请日：2012-11-12

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Wei-Lin Chen ,  Chih-Chien Chang ,  Ke-Feng Lin ,  Chiu-Te Lee ,  Chih-Chung Wang ,  Chiu-Ling Lee

IPC: H01L29/78 ,  H01L29/66 ,  H01L29/06 ,  H01L29/417 ,  H01L29/08

CPC classification number: H01L29/7816 ,  H01L29/0653 ,  H01L29/0878 ,  H01L29/41766 ,  H01L29/66681

Abstract: A semiconductor structure comprises a substrate having a first conductive type; a deep well having a second conductive type formed in the substrate and extending down from a surface of the substrate; a first well having the first conductive type and a second well having the second conductive type both formed in the deep well and extending down from the surface of the substrate, and the second well spaced apart from the first well; a gate electrode formed on the substrate and disposed between the first and second wells; an isolation extending down from the surface of the substrate and disposed between the gate electrode and the second well; a conductive plug penetrating into the isolation and reaching the bottom thereof; and a first doping electrode region having the second conductive type, formed within the second well and below the isolation to connect the conductive plug.

Abstract translation: 半导体结构包括具有第一导电类型的衬底; 具有形成在所述基板中并从所述基板的表面向下延伸的第二导电类型的深阱; 具有第一导电类型的第一阱和具有第二导电类型的第二阱都形成在深阱中并且从衬底的表面向下延伸，并且第二阱与第一阱间隔开; 栅电极，形成在所述基板上并且设置在所述第一阱和所述第二阱之间; 从衬底的表面向下延伸并且设置在栅电极和第二阱之间的隔离件; 导电插塞穿透隔离并到达其底部; 以及具有第二导电类型的第一掺杂电极区域，形成在第二阱内并在隔离件下方以连接导电插塞。

公开(公告)号：US11990546B2

公开(公告)日：2024-05-21

申请号：US18120995

申请日：2023-03-13

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Cheng-Hua Yang ,  Chih-Chien Chang ,  Shen-De Wang

IPC: H01L29/78 ,  H01L29/10 ,  H01L29/40 ,  H01L29/423

CPC classification number: H01L29/7816 ,  H01L29/1095 ,  H01L29/402 ,  H01L29/42368

Abstract: A semiconductor device includes a semiconductor substrate, a gate structure, a source region, a drain region, a first oxide layer, a field plate, and a second oxide layer. The gate structure is disposed on the semiconductor substrate. The source region and the drain region are disposed in the semiconductor substrate and located at two opposite sides of the gate structure respectively. The first oxide layer includes a first portion disposed between the gate structure and the semiconductor substrate and a second portion disposed between the gate structure and the drain region. The field plate is partly disposed above the gate structure and partly disposed above the second portion of the first oxide layer. The second oxide layer includes a first portion disposed between the field plate and the gate structure and a second portion disposed between the field plate and the second portion of the first oxide layer.

公开(公告)号：US20180366478A1

公开(公告)日：2018-12-20

申请号：US15626179

申请日：2017-06-19

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Liang Yi ,  Chih-Chien Chang ,  Shen-De Wang

IPC: H01L27/11521 ,  H01L27/11556

CPC classification number: H01L27/11521 ,  H01L27/11556 ,  H01L29/42328 ,  H01L29/66825 ,  H01L29/788

Abstract: A nonvolatile memory cell includes a substrate having a drain region, a source region, and a channel region between the drain region and the source region. A floating gate and a select gate are disposed on the channel region. A control gate is disposed on the floating gate. An erase gate is disposed on the source region. The erase gate includes a lower end portion that extends into a major surface of the substrate.

公开(公告)号：US09583641B1

公开(公告)日：2017-02-28

申请号：US14960453

申请日：2015-12-07

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Yuan-Hsiang Chang ,  Yi-Shan Chiu ,  Chih-Chien Chang ,  Jianjun Yang ,  Wen-Chuan Chang

IPC: H01L29/792 ,  H01L29/66 ,  H01L29/423

CPC classification number: H01L29/7923 ,  H01L21/28282 ,  H01L27/11573 ,  H01L29/42344 ,  H01L29/4966 ,  H01L29/513 ,  H01L29/517 ,  H01L29/665 ,  H01L29/66545 ,  H01L29/66833

Abstract: A manufacturing method of a semiconductor device includes the following steps. A plurality of select gates are formed on a memory region of a semiconductor substrate. Two charge storage structures are formed between two adjacent select gates. A source region is formed in the semiconductor substrate, and the source region is formed between the two adjacent select gates. An insulation block is formed between the two charge storage structures and formed on the source region. A memory gate is formed on the insulation block, and the memory gate is connected to the two charge storage structures.

Abstract translation: 半导体器件的制造方法包括以下步骤。 多个选择栅极形成在半导体衬底的存储区域上。 在两个相邻的选择门之间形成两个电荷存储结构。 源区域形成在半导体衬底中，并且源区域形成在两个相邻的选择栅极之间。 在两个电荷存储结构之间形成绝缘块并形成在源极区上。 存储器栅极形成在绝缘块上，并且存储器栅极连接到两个电荷存储结构。

公开(公告)号：US20220310839A1

公开(公告)日：2022-09-29

申请号：US17227392

申请日：2021-04-12

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Cheng-Hua Yang ,  Chih-Chien Chang ,  Shen-De Wang

IPC: H01L29/78 ,  H01L29/06 ,  H01L29/10 ,  H01L29/423 ,  H01L29/40

Abstract: A semiconductor device includes a semiconductor substrate, a gate structure, a source region, a drain region, a first oxide layer, a field plate, and a second oxide layer. The gate structure is disposed on the semiconductor substrate. The source region and the drain region are disposed in the semiconductor substrate and located at two opposite sides of the gate structure respectively. The first oxide layer includes a first portion disposed between the gate structure and the semiconductor substrate and a second portion disposed between the gate structure and the drain region. The field plate is partly disposed above the gate structure and partly disposed above the second portion of the first oxide layer. The second oxide layer includes a first portion disposed between the field plate and the gate structure and a second portion disposed between the field plate and the second portion of the first oxide layer.

公开(公告)号：US10332884B2

公开(公告)日：2019-06-25

申请号：US15802450

申请日：2017-11-02

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Liang Yi ,  Che-Jung Hsu ,  Yu-Cheng Tung ,  Jianjun Yang ,  Yuan-Hsiang Chang ,  Chih-Chien Chang ,  Weichang Liu ,  Shen-De Wang ,  Kok Wun Tan

IPC: H01L27/092 ,  H01L27/11573 ,  H01L29/792 ,  H01L29/66 ,  H01L29/78

Abstract: A method of manufacturing FinFET semiconductor devices in memory regions and logic regions includes the steps of forming a first gate material layer on a substrate and fins, patterning the first gate material layer to form a control gate, forming a second gate material layer on the substrate and fins, performing an etch process to the cell region so that the second gate material layer in the cell region is lower than the second gate material layer in the peripheral region, patterning the second gate material layer to form a select gate in the cell region and a dummy gate in the logic region respectively.

公开(公告)号：US20190131302A1

公开(公告)日：2019-05-02

申请号：US15802450

申请日：2017-11-02

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Liang Yi ,  Che-Jung Hsu ,  Yu-Cheng Tung ,  JIANJUN YANG ,  Yuan-Hsiang Chang ,  Chih-Chien Chang ,  WEICHANG LIU ,  Shen-De Wang ,  KOK WUN TAN

IPC: H01L27/092 ,  H01L27/11573 ,  H01L29/66 ,  H01L29/78 ,  H01L29/792

CPC classification number: H01L27/0924 ,  H01L27/11573 ,  H01L29/66795 ,  H01L29/66833 ,  H01L29/785 ,  H01L29/792

Abstract: A method of manufacturing FinFET semiconductor devices in memory regions and logic regions includes the steps of forming a first gate material layer on a substrate and fins, patterning the first gate material layer to form a control gate, forming a second gate material layer on the substrate and fins, performing an etch process to the cell region so that the second gate material layer in the cell region is lower than the second gate material layer in the peripheral region, patterning the second gate material layer to form a select gate in the cell region and a dummy gate in the logic region respectively.

公开(公告)号：US09666680B1

公开(公告)日：2017-05-30

申请号：US14944224

申请日：2015-11-18

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Yuan-Hsiang Chang ,  Shen-De Wang ,  Chih-Chien Chang ,  Jianjun Yang ,  Aaron Chen

IPC: H01L29/788 ,  H01L29/423 ,  H01L29/66 ,  H01L21/28 ,  H01L21/265 ,  H01L21/321 ,  H01L21/223 ,  H01L21/285 ,  H01L21/3213 ,  H01L21/311 ,  H01L29/51 ,  H01L27/11521

CPC classification number: H01L29/42328 ,  H01L21/26586 ,  H01L21/28273 ,  H01L21/28562 ,  H01L21/31111 ,  H01L21/321 ,  H01L21/32133 ,  H01L27/11521 ,  H01L28/00 ,  H01L29/42324 ,  H01L29/513 ,  H01L29/518 ,  H01L29/66825 ,  H01L29/788

Abstract: A flash cell includes a gate and an erase gate. The gate is disposed on a substrate, wherein the gate includes a control gate on the substrate and a floating gate having a tip between the substrate and the control gate. The erase gate is disposed beside the gate, wherein the tip points toward the erase gate. The present invention also provides a flash cell forming process including the following steps. A gate is formed on a substrate, wherein the gate includes a floating gate on the substrate. An implantation process is performed on a side part of the floating gate, thereby forming a first doped region in the side part. At least a part of the first doped region is oxidized, thereby forming a floating gate having a tip.

公开(公告)号：US20140131797A1

公开(公告)日：2014-05-15

申请号：US13674146

申请日：2012-11-12

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Wei-Lin Chen ,  Chih-Chien Chang ,  Ke-Feng Lin ,  Chiu-Te Lee ,  Chih-Chung Wang ,  Chiu-Ling Lee

IPC: H01L29/78 ,  H01L29/66

CPC classification number: H01L29/7816 ,  H01L29/0653 ,  H01L29/0878 ,  H01L29/41766 ,  H01L29/66681

Abstract: A semiconductor structure comprises a substrate having a first conductive type; a deep well having a second conductive type formed in the substrate and extending down from a surface of the substrate; a first well having the first conductive type and a second well having the second conductive type both formed in the deep well and extending down from the surface of the substrate, and the second well spaced apart from the first well; a gate electrode formed on the substrate and disposed between the first and second wells; an isolation extending down from the surface of the substrate and disposed between the gate electrode and the second well; a conductive plug penetrating into the isolation and reaching the bottom thereof; and a first doping electrode region having the second conductive type, formed within the second well and below the isolation to connect the conductive plug.

Abstract translation: 半导体结构包括具有第一导电类型的衬底; 具有形成在所述基板中并从所述基板的表面向下延伸的第二导电类型的深阱; 具有第一导电类型的第一阱和具有第二导电类型的第二阱都形成在深阱中并且从衬底的表面向下延伸，并且第二阱与第一阱间隔开; 栅电极，形成在所述基板上并且设置在所述第一阱和所述第二阱之间; 从衬底的表面向下延伸并且设置在栅电极和第二阱之间的隔离件; 导电插塞穿透隔离并到达其底部; 以及具有第二导电类型的第一掺杂电极区域，形成在第二阱内并在隔离件下方以连接导电插塞。