公开(公告)号：US20190148550A1

公开(公告)日：2019-05-16

申请号：US16244076

申请日：2019-01-09

申请人： UNITED MICROELECTRONICS CORP.

发明人： Chi-Hsuan Cheng ,  Cheng-Pu Chiu ,  Yu-Chih Su ,  Chih-Yi Wang ,  Chin-Yang Hsieh ,  Tien-Shan Hsu ,  Yao-Jhan Wang

IPC分类号： H01L29/78 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/06

CPC分类号： H01L29/7846 ,  H01L21/823821 ,  H01L21/823878 ,  H01L27/0924 ,  H01L29/0653

摘要： A semiconductor device and a method of forming the same, the semiconductor device includes a first and a second fin structures, a first, a second and a third isolation structures, and a first and a second gate structures. The first and second fin structures are disposed in a substrate. The first isolation structure is disposed in the substrate and surrounds the first and second fin structures. The second isolation structure is disposed in the first fin structure, and a top surface of the second isolation structure is leveled with a top surface of the first and second fin structures. The third isolation structure is disposed in the second fin shaped structure, and a top surface of the third isolation structure is lower than the top surface of the first and second fin structures. The first and second gate structures are disposed on the second and third isolation structures, respectively.

公开(公告)号：US10217866B2

公开(公告)日：2019-02-26

申请号：US15696201

申请日：2017-09-06

申请人： UNITED MICROELECTRONICS CORP.

发明人： Chi-Hsuan Cheng ,  Cheng-Pu Chiu ,  Yu-Chih Su ,  Chih-Yi Wang ,  Chin-Yang Hsieh ,  Tien-Shan Hsu ,  Yao-Jhan Wang

IPC分类号： H01L29/78 ,  H01L29/06 ,  H01L27/092 ,  H01L21/8238 ,  H01L21/82

摘要： A semiconductor device and a method of forming the same, the semiconductor device includes a first and a second fin structures, a first, a second and a third isolation structures, and a first and a second gate structures. The first and second fin structures are disposed in a substrate. The first isolation structure is disposed in the substrate and surrounds the first and second fin structures. The second isolation structure is disposed in the first fin structure, and a top surface of the second isolation structure is leveled with a top surface of the first and second fin structures. The third isolation structure is disposed in the second fin shaped structure, and a top surface of the third isolation structure is lower than the top surface of the first and second fin structures. The first and second gate structures are disposed on the second and third isolation structures, respectively.

公开(公告)号：US20190043760A1

公开(公告)日：2019-02-07

申请号：US16132460

申请日：2018-09-16

申请人： UNITED MICROELECTRONICS CORP.

发明人： Te-Chang Hsu ,  An-Chi Liu ,  Nan-Yuan Huang ,  Yu-Chih Su ,  Cheng-Pu Chiu ,  Tien-Shan Hsu ,  Chih-Yi Wang ,  Chi-Hsuan Cheng

IPC分类号： H01L21/8234 ,  H01L21/308 ,  H01L21/762

摘要： A semiconductor structure includes a substrate, a plurality of fin shaped structures, a trench, and a first bump. The substrate has a base, and the fin shaped structures protrude from the base. The trench is recessed from the base of the substrate. The first bump is disposed within the trench and protrudes from a bottom surface of the trench. A width of the first bump is larger than a width of each of the fin shaped structures.

公开(公告)号：US11569235B2

公开(公告)日：2023-01-31

申请号：US17075729

申请日：2020-10-21

申请人： UNITED MICROELECTRONICS CORP.

发明人： Chih-Yi Wang ,  Tien-Shan Hsu ,  Cheng-Pu Chiu ,  Yao-Jhan Wang

IPC分类号： H01L21/308 ,  H01L27/092 ,  H01L29/78 ,  H01L29/06 ,  H01L29/66 ,  H01L21/8238 ,  H01L29/161 ,  H01L29/26

摘要： A semiconductor device is provided in the disclosure, including a substrate, multiple parallel fins protruding from the substrate and isolated by trenches, and a device insulating layer on the trenches between two fins, wherein the trench is provided with a central first trench and two second trenches at both sides of the first trench, and a depth of the first trench is deeper than a depth of the second trench, and the device insulating layer is provided with a top plane, a first trench and a second trench, and the fins protrude from the top plane, and the bottom surface of the second trench is lower than the bottom surface of the first trench.

公开(公告)号：US20190080968A1

公开(公告)日：2019-03-14

申请号：US15700175

申请日：2017-09-10

申请人： UNITED MICROELECTRONICS CORP.

发明人： Chih-Yi Wang ,  Tien-Shan Hsu ,  Yu-Chih Su ,  Chi-Hsuan Cheng ,  Cheng-Pu Chiu ,  Te-Chang Hsu ,  Chin-Yang Hsieh ,  An-Chi Liu ,  Kuan-Lin Chen ,  Yao-Jhan Wang

IPC分类号： H01L21/8234 ,  H01L21/3065 ,  H01L21/02 ,  H01L21/762

摘要： A method of fabricating fins includes providing a silicon substrate. The silicon substrate is etched to form numerous fin elements. A surface of each of the fin elements is silicon. Etch residues are formed on the fin elements after the silicon substrate is etched. After that, a flush step is performed on the fin elements by flushing the surface of each of the fin elements with fluorocarbons. The etch residues on the fin elements are removed by the flush step. After the flush step, a strip step is performed on the fin elements by treating the surface of each of the fin elements with oxygen plasma.

公开(公告)号：US20190027603A1

公开(公告)日：2019-01-24

申请号：US15696201

申请日：2017-09-06

申请人： UNITED MICROELECTRONICS CORP.

发明人： Chi-Hsuan Cheng ,  Cheng-Pu Chiu ,  Yu-Chih Su ,  Chih-Yi Wang ,  Chin-Yang Hsieh ,  Tien-Shan Hsu ,  Yao-Jhan Wang

IPC分类号： H01L29/78 ,  H01L27/092 ,  H01L29/06 ,  H01L21/8238

摘要： A semiconductor device and a method of forming the same, the semiconductor device includes a first and a second fin structures, a first, a second and a third isolation structures, and a first and a second gate structures. The first and second fin structures are disposed in a substrate. The first isolation structure is disposed in the substrate and surrounds the first and second fin structures. The second isolation structure is disposed in the first fin structure, and a top surface of the second isolation structure is leveled with a top surface of the first and second fin structures. The third isolation structure is disposed in the second fin shaped structure, and a top surface of the third isolation structure is lower than the top surface of the first and second fin structures. The first and second gate structures are disposed on the second and third isolation structures, respectively.

公开(公告)号：US20210035977A1

公开(公告)日：2021-02-04

申请号：US17075729

申请日：2020-10-21

申请人： UNITED MICROELECTRONICS CORP.

发明人： Chih-Yi Wang ,  Tien-Shan Hsu ,  Cheng-Pu Chiu ,  Yao-Jhan Wang

IPC分类号： H01L27/092 ,  H01L29/78 ,  H01L29/06 ,  H01L29/66 ,  H01L21/308 ,  H01L21/8238 ,  H01L29/161 ,  H01L29/26

摘要： A semiconductor device is provided in the disclosure, including a substrate, multiple parallel fins protruding from the substrate and isolated by trenches, and a device insulating layer on the trenches between two fins, wherein the trench is provided with a central first trench and two second trenches at both sides of the first trench, and a depth of the first trench is deeper than a depth of the second trench, and the device insulating layer is provided with a top plane, a first trench and a second trench, and the fins protrude from the top plane, and the bottom surface of the second trench is lower than the bottom surface of the first trench.

公开(公告)号：US10686079B1

公开(公告)日：2020-06-16

申请号：US16243014

申请日：2019-01-08

申请人： UNITED MICROELECTRONICS CORP.

发明人： Chih-Yi Wang ,  Cheng-Pu Chiu ,  Huang-Ren Wei ,  Tien-Shan Hsu ,  Chi-Sheng Tseng ,  Yao-Jhan Wang

IPC分类号： H01L29/76 ,  H01L29/78 ,  H01L29/423 ,  H01L29/66 ,  H01L29/49 ,  H01L29/417 ,  H01L21/3213 ,  H01L21/8234

摘要： A fin field effect transistor structure with particular gate appearance is provided in this disclosure, featuring a fin on a substrate and a gate on the substrate and traversing over the fin, wherein the fin is divided into an upper portion on a top surface of the fin and a lower portion on two sides of the fin, and the lower portion of the gate has protrusions laterally protruding in said first direction at positions abutting to the fin.

公开(公告)号：US10446682B2

公开(公告)日：2019-10-15

申请号：US16244076

申请日：2019-01-09

申请人： UNITED MICROELECTRONICS CORP.

发明人： Chi-Hsuan Cheng ,  Cheng-Pu Chiu ,  Yu-Chih Su ,  Chih-Yi Wang ,  Chin-Yang Hsieh ,  Tien-Shan Hsu ,  Yao-Jhan Wang

IPC分类号： H01L29/78 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/06

摘要： A semiconductor device and a method of forming the same, the semiconductor device includes a first and a second fin structures, a first, a second and a third isolation structures, and a first and a second gate structures. The first and second fin structures are disposed in a substrate. The first isolation structure is disposed in the substrate and surrounds the first and second fin structures. The second isolation structure is disposed in the first fin structure, and a top surface of the second isolation structure is leveled with a top surface of the first and second fin structures. The third isolation structure is disposed in the second fin shaped structure, and a top surface of the third isolation structure is lower than the top surface of the first and second fin structures. The first and second gate structures are disposed on the second and third isolation structures, respectively.

公开(公告)号：US10283415B2

公开(公告)日：2019-05-07

申请号：US16132460

申请日：2018-09-16

申请人： UNITED MICROELECTRONICS CORP.

发明人： Te-Chang Hsu ,  An-Chi Liu ,  Nan-Yuan Huang ,  Yu-Chih Su ,  Cheng-Pu Chiu ,  Tien-Shan Hsu ,  Chih-Yi Wang ,  Chi-Hsuan Cheng

IPC分类号： H01L21/8234 ,  H01L21/308 ,  H01L21/762

摘要： A semiconductor structure includes a substrate, a plurality of fin shaped structures, a trench, and a first bump. The substrate has a base, and the fin shaped structures protrude from the base. The trench is recessed from the base of the substrate. The first bump is disposed within the trench and protrudes from a bottom surface of the trench. A width of the first bump is larger than a width of each of the fin shaped structures.