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公开(公告)号:US11670679B2
公开(公告)日:2023-06-06
申请号:US17225716
申请日:2021-04-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Kyunghwan Lee , Yongseok Kim , Hyuncheol Kim , Sungwon Yoo , Jaeho Hong
IPC: H01L29/00 , H01L29/10 , H01L29/786 , H01L29/06
CPC classification number: H01L29/1033 , H01L29/0615 , H01L29/7869 , H01L29/78642
Abstract: A semiconductor device includes a gate electrode on a substrate, a channel surrounding sidewalls of the gate electrode on the substrate, and source/drain electrodes on the substrate at opposite sides of the gate electrode in a first direction parallel to an upper surface of the substrate. A thickness of the channel from the gate electrode to the source/drain electrodes in a horizontal direction parallel to the upper surface of the substrate is not constant but varies in a vertical direction perpendicular to the upper surface of the substrate.
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公开(公告)号:US12213302B2
公开(公告)日:2025-01-28
申请号:US17725069
申请日:2022-04-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Kyunghwan Lee , Yongseok Kim , Ilgweon Kim , Hyeoungwon Seo , Sungwon Yoo , Jaeho Hong
IPC: H10B12/00
Abstract: A semiconductor memory device includes a word line extending in a vertical direction, a semiconductor pattern having a ring-shaped horizontal cross-section that extends around the word line, a bit line disposed at a first end of the semiconductor pattern, and a capacitor structure disposed at second end of the semiconductor pattern. The capacitor structure includes a lower electrode layer electrically connected to the second end of the semiconductor pattern, having a ring-shaped horizontal cross-section, and including a connector extending in the vertical direction. A first segment extends in a horizontal direction from an upper end of the connector, and a second segment extends in the horizontal direction from a lower end of the connector. An upper electrode layer surrounded by the lower electrode layer, extends in the vertical direction, and a capacitor dielectric layer is between the lower electrode layer and the upper electrode layer.
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公开(公告)号:US11621264B2
公开(公告)日:2023-04-04
申请号:US16999378
申请日:2020-08-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Hyuncheol Kim , Yongseok Kim , Satoru Yamada , Sungwon Yoo , Kyunghwan Lee , Jaeho Hong
IPC: H01L27/102 , H01L29/24 , H01L29/66 , H01L29/87 , H01L29/74 , H01L27/108 , H01L27/06
Abstract: A semiconductor memory device may include a first electrode and a second electrode, which are spaced apart from each other in a first direction, and a first semiconductor pattern, which is in contact with both of the first and second electrodes. The first semiconductor pattern may include first to fourth sub-semiconductor patterns, which are sequentially disposed in the first direction. The first and fourth sub-semiconductor patterns may be in contact with the first and second electrodes, respectively. The first and third sub-semiconductor patterns may be of a first conductivity type, and the second and fourth sub-semiconductor patterns may be of a second conductivity type different from the first conductivity type. Each of the first to fourth sub-semiconductor patterns may include a transition metal and a chalcogen element.
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公开(公告)号:US11189618B2
公开(公告)日:2021-11-30
申请号:US15966554
申请日:2018-04-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Namho Jeon , Jin-Seong Lee , Hyun-jung Lee , Dongsoo Woo , Donggyu Heo , Jaeho Hong
IPC: H01L27/105 , H01L29/06 , H01L21/8238 , H01L21/8239 , H01L27/108
Abstract: Disclosed are a semiconductor memory device and a method of manufacturing the same. The semiconductor memory device includes a device isolation layer defining active regions of a substrate, and gate lines buried in the substrate and extending across the active regions. Each of the gate lines includes a conductive layer, a liner layer disposed between and separating the conductive layer and the substrate, and a first work function adjusting layer disposed on the conductive layer and the liner layer. The first work function adjusting layer includes a first work function adjusting material. A work function of the first work function adjusting layer is less than those of the conductive layer and the liner layer.
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公开(公告)号:US20190027480A1
公开(公告)日:2019-01-24
申请号:US15920628
申请日:2018-03-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Hyun-jung Lee , Dongsoo Woo , Jin-Seong Lee , Namho Jeon , Jaeho Hong
IPC: H01L27/108
Abstract: A semiconductor memory device includes a separation member defining active regions of a substrate. Gate lines intersect the active regions and are each buried in a trench formed in the substrate. Each of the gate lines includes a lower electrode structure and an upper electrode structure on the lower electrode structure. The upper electrode structure includes a source layer substantially covering a sidewall of the trench and including a work-function adjustment element. A conductive layer is on the source layer. A work-function adjustment layer is disposed between the source layer and the conductive layer. The work-function adjustment layer includes a material different from that of the source layer and is doped with the work-function adjustment element.
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公开(公告)号:US11729974B2
公开(公告)日:2023-08-15
申请号:US17182479
申请日:2021-02-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Kyunghwan Lee , Yongseok Kim , Hyuncheol Kim , Hyeoungwon Seo , Sungwon Yoo , Jaeho Hong
CPC classification number: H10B43/27 , G11C7/18 , G11C8/14 , H10B41/10 , H10B41/27 , H10B41/35 , H10B43/10 , H10B43/35
Abstract: A semiconductor memory device includes a word line extending in a vertical direction on a substrate, a channel layer surrounding the word line to configure a cell transistor and having a horizontal ring shape with a predetermined horizontal width, a bit line disposed at one end of the channel layer in a first horizontal direction and extending in a second horizontal direction perpendicular to the first horizontal direction, and a cell capacitor disposed at other end of the channel layer in the first horizontal direction, the cell capacitor including an upper electrode layer extending in the vertical direction, a lower electrode layer surrounding the upper electrode layer, and a capacitor dielectric layer disposed between the upper electrode layer and the lower electrode layer.
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公开(公告)号:US11581316B2
公开(公告)日:2023-02-14
申请号:US17092593
申请日:2020-11-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Hyuncheol Kim , Yongseok Kim , Huijung Kim , Satoru Yamada , Sungwon Yoo , Kyunghwan Lee , Jaeho Hong
IPC: H01L27/102 , H01L29/74
Abstract: A semiconductor device includes a first conductive line and a second conductive line spaced apart from the first conductive line. A semiconductor pattern is disposed between the first conductive line and the second conductive line. The semiconductor pattern includes a first semiconductor pattern having first-conductivity-type impurities disposed adjacent to the first conductive line. A second semiconductor pattern having second-conductivity-type impurities is disposed adjacent to the second conductive line. A third semiconductor pattern is disposed between the first semiconductor pattern and the second semiconductor pattern. The third semiconductor pattern includes a first region disposed adjacent to the first semiconductor pattern and a second region disposed between the first region and the second semiconductor pattern. At least one of the first region and the second region comprises an intrinsic semiconductor layer. A first gate line crosses the first region and a second gate line crosses the second region.
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公开(公告)号:US11152365B2
公开(公告)日:2021-10-19
申请号:US15966554
申请日:2018-04-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Namho Jeon , Jin-Seong Lee , Hyun-jung Lee , Dongsoo Woo , Donggyu Heo , Jaeho Hong
IPC: H01L27/105 , H01L29/06 , H01L21/8238 , H01L21/8239 , H01L27/108
Abstract: Disclosed are a semiconductor memory device and a method of manufacturing the same. The semiconductor memory device includes a device isolation layer defining active regions of a substrate, and gate lines buried in the substrate and extending across the active regions. Each of the gate lines includes a conductive layer, a liner layer disposed between and separating the conductive layer and the substrate, and a first work function adjusting layer disposed on the conductive layer and the liner layer. The first work function adjusting layer includes a first work function adjusting material. A work function of the first work function adjusting layer is less than those of the conductive layer and the liner layer.
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公开(公告)号:US10818672B2
公开(公告)日:2020-10-27
申请号:US16405548
申请日:2019-05-07
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Hyun-jung Lee , Dongsoo Woo , Jin-Seong Lee , Namho Jeon , Jaeho Hong
IPC: H01L27/108 , H01L29/423 , H01L29/49 , H01L29/66 , H01L29/43 , H01L21/8238 , H01L29/51 , H01L21/3215
Abstract: A semiconductor memory device includes a separation member defining active regions of a substrate. Gate lines intersect the active regions and are each buried in a trench formed in the substrate. Each of the gate lines includes a lower electrode structure and an upper electrode structure on the lower electrode structure. The upper electrode structure includes a source layer substantially covering a sidewall of the trench and including a work-function adjustment element. A conductive layer is on the source layer. A work-function adjustment layer is disposed between the source layer and the conductive layer. The work-function adjustment layer includes a material different from that of the source layer and is doped with the work-function adjustment element.
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公开(公告)号:US11996457B2
公开(公告)日:2024-05-28
申请号:US17443553
申请日:2021-07-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Hyuncheol Kim , Yongseok Kim , Ilgweon Kim , Seokhan Park , Kyunghwan Lee , Jaeho Hong
IPC: H01L29/423 , H01L23/482 , H01L29/66 , H01L29/78
CPC classification number: H01L29/4236 , H01L23/4828 , H01L29/66734 , H01L29/7813
Abstract: A semiconductor device includes a plurality of semiconductor structures disposed on a substrate, a first conductive pattern, a first conductive pattern, a gate insulation pattern, a second conductive pattern and a second impurity region. Each of the semiconductor structures includes a first semiconductor pattern that has a linear shape that extends in a first direction and second semiconductor patterns that protrude from an upper surface of the first semiconductor pattern in a vertical direction. The semiconductor structures are spaced apart from each other in a second direction perpendicular to the first direction. The first conductive pattern is formed between the first semiconductor patterns. The first impurity region is formed in an opening in the first semiconductor pattern adjacent to a first sidewall of the second semiconductor pattern. The first impurity region includes an impurity diffusion harrier pattern and a polysilicon pattern doped with impurities.
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