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公开(公告)号:US20210343789A1
公开(公告)日:2021-11-04
申请号:US17375021
申请日:2021-07-14
Applicant: UNITED MICROELECTRONICS CORP.
Inventor: Da-Jun Lin , Bin-Siang Tsai , Ya-Jyuan Hung , Chin-Chia Yang , Ting-An Chien
Abstract: A memory cell includes a first conductive line, a lower electrode, a carbon nano-tube (CNT) layer, a middle electrode, a resistive layer, a top electrode and a second conductive line. The first conductive line is disposed over a substrate. The lower electrode is disposed over the first conductive line. The carbon nano-tube (CNT) layer is disposed over the lower electrode. The middle electrode is disposed over the carbon nano-tube layer, thereby the lower electrode, the carbon nano-tube (CNT) layer and the middle electrode constituting a nanotube memory part. The resistive layer is disposed over the middle electrode. The top electrode is disposed over the resistive layer, thereby the middle electrode, the resistive layer and the top electrode constituting a resistive memory part. The second conductive line is disposed over the top electrode.
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公开(公告)号:US20210225932A1
公开(公告)日:2021-07-22
申请号:US17223024
申请日:2021-04-06
Applicant: UNITED MICROELECTRONICS CORP.
Inventor: Kun-Ju Li , Tai-Cheng Hou , Hsin-Jung Liu , Fu-Yu Tsai , Bin-Siang Tsai , Chau-Chung Hou , Yu-Lung Shih , Ang Chan , Chih-Yueh Li , Chun-Tsen Lu
Abstract: A method for fabricating semiconductor device includes the steps of: forming a first magnetic tunneling junction (MTJ) and a second MTJ on a substrate; forming a first top electrode on the first MTJ and a second top electrode on the second MTJ; forming a first ultra low-k (ULK) dielectric layer on the first MTJ and the second MTJ; forming a passivation layer on the first ULK dielectric layer, wherein a bottom surface of the passivation layer between the first MTJ and the second MTJ is lower than a top surface of the first MTJ; and forming a second ULK dielectric layer on the passivation layer.
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公开(公告)号:US20210119115A1
公开(公告)日:2021-04-22
申请号:US17134460
申请日:2020-12-27
Applicant: UNITED MICROELECTRONICS CORP.
Inventor: Hui-Lin Wang , Tai-Cheng Hou , Wei-Xin Gao , Fu-Yu Tsai , Chin-Yang Hsieh , Chen-Yi Weng , Jing-Yin Jhang , Bin-Siang Tsai , Kun-Ju Li , Chih-Yueh Li , Chia-Lin Lu , Chun-Lung Chen , Kun-Yuan Liao , Yu-Tsung Lai , Wei-Hao Huang
IPC: H01L43/08 , H01L21/768 , H01L43/02 , H01L21/762
Abstract: A method for fabricating semiconductor device includes the steps of: forming a first magnetic tunneling junction (MTJ) on a substrate; forming a first ultra low-k (ULK) dielectric layer on the first MTJ; performing a first etching process to remove part of the first ULK dielectric layer and forming a damaged layer on the first ULK dielectric layer; and forming a second ULK dielectric layer on the damaged layer.
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公开(公告)号:US20210074917A1
公开(公告)日:2021-03-11
申请号:US16589148
申请日:2019-10-01
Applicant: UNITED MICROELECTRONICS CORP.
Inventor: Shih-Wei Su , Da-Jun Lin , Bin-Siang Tsai , Ya-Jyuan Hung , Ting-An Chien
Abstract: A method of forming a resistive random access memory cell includes the following steps. A first electrode layer, a blanket resistive switching material layer and a second electrode layer are formed on a layer sequentially. The second electrode layer is patterned to form a second electrode. The blanket resistive switching material layer is patterned to form a resistive switching material layer. An oxygen implanting process is performed to implant oxygen in two sidewall parts of the resistive switching material layer.
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公开(公告)号:US20210005662A1
公开(公告)日:2021-01-07
申请号:US16531108
申请日:2019-08-04
Applicant: UNITED MICROELECTRONICS CORP.
Inventor: Kun-Ju Li , Tai-Cheng Hou , Hsin-Jung Liu , Fu-Yu Tsai , Bin-Siang Tsai , Chau-Chung Hou , Yu-Lung Shih , Ang Chan , Chih-Yueh Li , Chun-Tsen Lu
Abstract: A method for fabricating semiconductor device includes the steps of: forming a first magnetic tunneling junction (MTJ) and a second MTJ on a substrate; forming a first top electrode on the first MTJ and a second top electrode on the second MTJ; forming a first ultra low-k (ULK) dielectric layer on the first MTJ and the second MTJ; forming a passivation layer on the first ULK dielectric layer, wherein a bottom surface of the passivation layer between the first MTJ and the second MTJ is lower than a top surface of the first MTJ; and forming a second ULK dielectric layer on the passivation layer.
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公开(公告)号:US20200266095A1
公开(公告)日:2020-08-20
申请号:US16866360
申请日:2020-05-04
Applicant: United Microelectronics Corp.
Inventor: Da-Jun Lin , Bin-Siang Tsai , Chich-Neng Chang
IPC: H01L21/768 , H01L23/528 , H01L23/532 , H01L23/522
Abstract: A structure of semiconductor device includes a substrate, having a dielectric layer on top. The structure further includes at least two metal elements being adjacent, disposed in the dielectric layer, wherein an air gap is existing between the two metal elements. A porous dielectric layer is disposed over the substrate, sealing the air gap. An inter-layer dielectric layer disposed on the porous dielectric layer.
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公开(公告)号:US20200258771A1
公开(公告)日:2020-08-13
申请号:US16858698
申请日:2020-04-26
Applicant: UNITED MICROELECTRONICS CORP.
Inventor: Yu-Cheng Lin , Chich-Neng Chang , Bin-Siang Tsai
IPC: H01L21/768 , H01L23/522
Abstract: A method of forming an interconnection structure is disclosed, including providing a substrate, forming a patterned layer on the substrate, the patterned layer comprising at least a trench formed therein, depositing a first dielectric layer on the patterned layer and sealing an air gap in the trench, depositing a second dielectric layer on the first dielectric layer and completely covering the patterned layer, and performing a curing process to the first dielectric layer and the second dielectric layer.
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公开(公告)号:US20200185325A1
公开(公告)日:2020-06-11
申请号:US16212401
申请日:2018-12-06
Applicant: United Microelectronics Corp.
Inventor: Da-Jun Lin , Bin-Siang Tsai , San-Fu Lin
IPC: H01L23/532 , H01L23/528 , H01L21/764 , H01L21/768
Abstract: A structure of semiconductor device includes a substrate, having a dielectric layer on top. At least two metal elements are formed in the dielectric layer, wherein an air gap is between adjacent two of the metal elements. A cap layer is disposed over the substrate, wherein a portion of the cap layer above the adjacent two of the metal elements has a hydrophilic surface. An inter-layer dielectric layer is disposed on the cap layer. The inter-layer dielectric layer seals the air gap between the two metal elements. The air gap remains and extends higher than a top surface of the metal elements.
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公开(公告)号:US10665546B1
公开(公告)日:2020-05-26
申请号:US16212401
申请日:2018-12-06
Applicant: United Microelectronics Corp.
Inventor: Da-jun Lin , Bin-Siang Tsai , San-Fu Lin
IPC: H01L21/764 , H01L21/768 , H01L21/02 , H01L23/532 , H01L23/528
Abstract: A structure of semiconductor device includes a substrate, having a dielectric layer on top. At least two metal elements are formed in the dielectric layer, wherein an air gap is between adjacent two of the metal elements. A cap layer is disposed over the substrate, wherein a portion of the cap layer above the adjacent two of the metal elements has a hydrophilic surface. An inter-layer dielectric layer is disposed on the cap layer. The inter-layer dielectric layer seals the air gap between the two metal elements. The air gap remains and extends higher than a top surface of the metal elements.
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公开(公告)号:US10186453B2
公开(公告)日:2019-01-22
申请号:US14738943
申请日:2015-06-15
Applicant: UNITED MICROELECTRONICS CORP.
Inventor: Wei-Hsin Liu , Bin-Siang Tsai
IPC: H01L21/768 , H01L23/522 , H01L21/02 , H01L21/311 , H01L21/32 , H01L23/532 , H01L21/3105 , H01L23/485
Abstract: A semiconductor process includes the following steps. Metal patterns are formed on a first dielectric layer. A modifiable layer is formed to cover the metal patterns and the first dielectric layer. A modification process is performed to modify a part of the modifiable layer on top sides of the metal patterns, thereby top masks being formed. A removing process is performed to remove a part of the modifiable layer on sidewalls of the metal patterns but preserve the top masks. A dielectric layer having voids under the top masks and between the metal patterns is formed. Moreover, the present invention also provides a semiconductor structure formed by said semiconductor process.
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