Fuse lines and plugs for semiconductor devices

    公开(公告)号:US11476190B2

    公开(公告)日:2022-10-18

    申请号:US16464565

    申请日:2016-12-30

    Abstract: Embodiments herein describe techniques for fuse lines and plugs formation. A semiconductor device may include a fuse line having a nominal fuse segment abutted to a necked fuse segment. The nominal fuse segment may be wider than the necked fuse segment. A first spacer may be along a first side of the fuse line and a second spacer along a second side opposite to the first side of the fuse line. The first spacer may include a part having a width at least twice a width of a part of the second spacer. A plug within a vicinity of the necked fuse segment may have a plug width that may be at least twice a plug with of a plug of an interconnect line outside the vicinity. Other embodiments may also be described and claimed.

    Metal interconnect fuse memory arrays

    公开(公告)号:US11239149B2

    公开(公告)日:2022-02-01

    申请号:US15942952

    申请日:2018-04-02

    Abstract: Embodiments herein may describe techniques for an integrated circuit including a metal interconnect above a substrate and coupled to a first contact and a second contact. The first contact and the second contact may be above the metal interconnect and in contact with the metal interconnect. A first resistance may exist between the first contact and the second contact through the metal interconnect. After a programming voltage is applied to the second contact while the first contact is coupled to a ground terminal to generate a current between the first contact and the second contact, a non-conducting barrier may be formed as an interface between the second contact and the metal interconnect. A second resistance may exist between the first contact, the metal interconnect, the second contact, and the non-conducting barrier. Other embodiments may be described and/or claimed.

    HOT CARRIER INJECTION PROGRAMMING AND SECURITY

    公开(公告)号:US20230162772A1

    公开(公告)日:2023-05-25

    申请号:US17706124

    申请日:2022-03-28

    CPC classification number: G11C7/24 G11C17/16 G11C17/18

    Abstract: Hot carrier injection (HCI) may be used to provide various improvements for one-time programmable (OTP) read-only memory (ROM) or physical unclonable function (PUF) circuits. HCI may be used to write a memory bit (e.g., logical 0 or 1), which may be used in OTP ROM. HCI may be used to provide improved programmable ROM (PROM) memory devices, such as to facilitate programming or to increase sensing window. HCI may also be used to write a memory bit in a PUF circuit. HCI may provide a cross-foundry portable PUF circuit that has an associated adjustable bit error rate (BER), which may be used to secure root key generation, or may be used to provide a unique identification (ID) for fuse replacement.

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