FinFET transistors as antifuse elements

    公开(公告)号:US11515251B2

    公开(公告)日:2022-11-29

    申请号:US15943009

    申请日:2018-04-02

    Abstract: Embodiments herein may describe techniques for an integrated circuit including a FinFET transistor to be used as an antifuse element having a path through a fin area to couple a source electrode and a drain electrode after a programming operation is performed. A FinFET transistor may include a source electrode in contact with a source area, a drain electrode in contact with a drain area, a fin area including silicon and between the source area and the drain area, and a gate electrode above the fin area and above the substrate. After a programming operation is performed to apply a programming voltage between the source electrode and the drain electrode to generate a current between the source electrode, the fin area, and the drain electrode, a path may be formed through the fin area to couple the source electrode and the drain electrode. Other embodiments may be described and/or claimed.

    Hot carrier injection fuse memory

    公开(公告)号:US11348651B2

    公开(公告)日:2022-05-31

    申请号:US16147119

    申请日:2018-09-28

    Abstract: Memory cell circuitry is disclosed. The memory cell circuitry includes a first transistor configured to have a threshold voltage of the first transistor modulated by hot carrier injection, a second transistor coupled to the first transistor and configured to have a threshold voltage of the second transistor modulated by hot carrier injection, a word line coupled to a gate of the first transistor and to a gate of the second transistor, a first bit line coupled to the first transistor and a second bit line coupled to the second transistor. In addition, the memory cell circuitry includes a source line coupled to the drain of the first transistor and to the drain of the second transistor, the word line and the source line configured to cause hot carrier injection (HCI) into the first transistor when a first supply voltage is applied to the word line and the source line, and the second bit line is floated and the first bit line is grounded. The word line and the source line are configured to cause hot carrier injection into the second transistor when the first supply voltage is applied to the word line and the source line, and the first bit line is floated and the second bit line is grounded. Methods utilizing this technology for generating a multi-time programmable non-volatile memory and a random number generator for physical unclonable function applications are included in this disclosure.

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