公开(公告)号：US11594637B2

公开(公告)日：2023-02-28

申请号：US16833208

申请日：2020-03-27

申请人： Intel Corporation

发明人： Leonard P. Guler ,  Stephen Snyder ,  Biswajeet Guha ,  William Hsu ,  Urusa Alaan ,  Tahir Ghani ,  Michael K. Harper ,  Vivek Thirtha ,  Shu Zhou ,  Nitesh Kumar

IPC分类号： H01L29/78 ,  H01L29/06 ,  H01L29/08 ,  H01L29/423 ,  H01L29/786 ,  H01L29/165 ,  H01L21/02 ,  H01L29/10

摘要： Gate-all-around integrated circuit structures having fin stack isolation, and methods of fabricating gate-all-around integrated circuit structures having fin stack isolation, are described. For example, an integrated circuit structure includes a sub-fin structure on a substrate, the sub-fin structure having a top and sidewalls. An isolation structure is on the top and along the sidewalls of the sub-fin structure. The isolation structure includes a first dielectric material surrounding regions of a second dielectric material. A vertical arrangement of horizontal nanowires is on a portion of the isolation structure on the top surface of the sub-fin structure.

公开(公告)号：US11569370B2

公开(公告)日：2023-01-31

申请号：US16454408

申请日：2019-06-27

申请人： Intel Corporation

发明人： Leonard P. Guler ,  Vivek Thirtha ,  Shu Zhou ,  Nitesh Kumar ,  Biswajeet Guha ,  William Hsu ,  Dax Crum ,  Oleg Golonzka ,  Tahir Ghani ,  Christopher Kenyon

IPC分类号： H01L29/66 ,  H01L21/31 ,  H01L29/06 ,  H01L21/3105

摘要： An integrated circuit structure comprises a semiconductor fin protruding through a trench isolation region above a substrate. A gate structure is over the semiconductor fin. A plurality of vertically stacked nanowires is through the gate structure, wherein the plurality of vertically stacked nanowires includes a top nanowire adjacent to a top of the gate structure, and a bottom nanowire adjacent to a top of the semiconductor fin. A dielectric material covers only a portion of the plurality of vertically stacked nanowires outside the gate structure, such that one or more one of the plurality of vertically stacked nanowires starting with the top nanowire is exposed from the dielectric material. Source and drain regions are on opposite sides of the gate structure connected to the exposed ones of the plurality of vertically stacked nanowires.

公开(公告)号：US11610894B2

公开(公告)日：2023-03-21

申请号：US16457657

申请日：2019-06-28

申请人： Intel Corporation

发明人： Travis W. Lajoie ,  Abhishek A. Sharma ,  Van H. Le ,  Chieh-Jen Ku ,  Pei-Hua Wang ,  Jack T. Kavalieros ,  Bernhard Sell ,  Tahir Ghani ,  Gregory George ,  Akash Garg ,  Julie Rollins ,  Allen B. Gardiner ,  Shem Ogadhoh ,  Juan G. Alzate Vinasco ,  Umut Arslan ,  Fatih Hamzaoglu ,  Nikhil Mehta ,  Yu-Wen Huang ,  Shu Zhou

IPC分类号： H01L27/108

摘要： Embodiments herein describe techniques for a semiconductor device including a substrate, a first inter-level dielectric (ILD) layer above the substrate, and a second ILD layer above the first ILD layer. A first capacitor and a second capacitor are formed within the first ILD layer and the second ILD layer. A first top plate of the first capacitor and a second top plate of the second capacitor are formed at a boundary between the first ILD layer and the second ILD layer. The first capacitor and the second capacitor are separated by a dielectric area in the first ILD layer. The dielectric area includes a first dielectric area that is coplanar with the first top plate or the second top plate, and a second dielectric area above the first dielectric area and to separate the first top plate and the second top plate. Other embodiments may be described and/or claimed.

公开(公告)号：US11563107B2

公开(公告)日：2023-01-24

申请号：US16361881

申请日：2019-03-22

申请人： Intel Corporation

发明人： Chieh-Jen Ku ,  Bernhard Sell ,  Pei-Hua Wang ,  Nikhil Mehta ,  Shu Zhou ,  Jared Stoeger ,  Allen B. Gardiner ,  Akash Garg ,  Shem Ogadhoh ,  Vinaykumar Hadagali ,  Travis W. Lajoie

IPC分类号： H01L29/66 ,  H01L27/108 ,  H01L29/786

摘要： An integrated circuit structure comprises one or more backend-of-line (BEOL) interconnects formed over a first ILD layer. An etch stop layer is over the one or more BEOL interconnects, the etch stop layer having a plurality of vias that are in contact with the one or more BEOL interconnects. An array of BEOL thin-film-transistors (TFTs) is over the etch stop layer, wherein adjacent ones of the BEOL TFTs are separated by isolation trench regions. The TFTs are aligned with at least one of the plurality of vias to connect to the one or more BEOL interconnects, wherein each of the BEOL TFTs comprise a bottom gate electrode, a gate dielectric layer over the bottom gate electrode, and an oxide-based semiconductor channel layer over the bottom gate electrode having source and drain regions therein. Contacts are formed over the source and drain regions of each of BEOL TFTs, wherein the contacts have a critical dimension of 35 nm or less, and wherein the BEOL TFTs have an absence of diluted hydro-fluoride (DHF).