Invention Grant
- Patent Title: Nanoscale-aligned three-dimensional stacked integrated circuit
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Application No.: US16957046Application Date: 2018-12-21
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Publication No.: US11600525B2Publication Date: 2023-03-07
- Inventor: Sidlgata V. Sreenivasan , Paras Ajay , Aseem Sayal , Ovadia Abed , Mark McDermott , Jaydeep Kulkarni , Shrawan Singhal
- Applicant: Board of Regents, The University of Texas System
- Applicant Address: US TX Austin
- Assignee: Board of Regents, The University of Texas System
- Current Assignee: Board of Regents, The University of Texas System
- Current Assignee Address: US TX Austin
- Agency: Shackelford, Bowen, McKinley & Norton, LLP
- Agent Robert A Voigt, Jr.
- International Application: PCT/US2018/067322 WO 20181221
- International Announcement: WO2019/126769 WO 20190627
- Main IPC: H01L23/538
- IPC: H01L23/538 ; H01L23/544 ; H01L21/768 ; H01L23/48 ; H01L23/00 ; H01L25/065 ; H01L25/00 ; H01L27/06

Abstract:
A method for fabricating a three-dimensional (3D) stacked integrated circuit. Pick-and-place strategies are used to stack the source wafers with device layers fabricated using standard two-dimensional (2D) semiconductor fabrication technologies. The source wafers may be stacked in either a sequential or parallel fashion. The stacking may be in a face-to-face, face-to-back, back-to-face or back-to-back fashion. The source wafers that are stacked in a face-to-back, back-to-face or back-to-back fashion may be connected using Through Silicon Vias (TSVs). Alternatively, source wafers that are stacked in a face-to-face fashion may be connected using Inter Layer Vias (ILVs).
Public/Granted literature
- US20210366771A1 NANOSCALE-ALIGNED THREE-DIMENSIONAL STACKED INTEGRATED CIRCUIT Public/Granted day:2021-11-25
Information query
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