ANTIFUSE-TYPE ONE TIME PROGRAMMING MEMORY CELL AND CELL ARRAY STRUCTURE WITH SAME

    公开(公告)号:US20230049378A1

    公开(公告)日:2023-02-16

    申请号:US17536414

    申请日:2021-11-29

    摘要: An antifuse-type one time programming memory cell includes a select device, a following device and an antifuse transistor. A first terminal of the select device is connected with a bit line. A second terminal of the select device is connected with a first node. A select terminal of the select device is connected with a word line. A first terminal of the following device is connected with the first node. A second terminal of the following device is connected with a second node. A control terminal of the following device is connected with a following control line. A first drain/source terminal of the antifuse transistor is connected with the second node. A gate terminal of the antifuse transistor is connected with an antifuse control line. A second drain/source terminal of the antifuse transistor is in a floating state.

    Physically unclonable function circuit having lower gate-to-source/drain breakdown voltage

    公开(公告)号:US11437082B2

    公开(公告)日:2022-09-06

    申请号:US16876092

    申请日:2020-05-17

    发明人: Geeng-Chuan Chern

    摘要: A physically unclonable function (PUF) circuit includes a program control transistor, a program select transistor, a read select transistor, and a PUF bit storage transistor. The PUF bit storage transistor has a drain region coupled to the read select transistor, a source region coupled to a source line and the program select transistor, a channel region, a gate dielectric layer, and a gate electrode coupled to the program select transistor. The gate dielectric layer has a first portion formed on the drain region, a second portion formed on the source region, and a main portion formed on the channel region and between the first portion and the second portion, thicknesses of the first portion of the gate dielectric layer and the second portion of the gate dielectric layer being smaller than a thickness of the main portion of the gate dielectric layer.

    ROM CELL WITH TRANSISTOR BODY BIAS CONTROL CIRCUIT

    公开(公告)号:US20200082894A1

    公开(公告)日:2020-03-12

    申请号:US16399939

    申请日:2019-04-30

    申请人: NXP B.V.

    摘要: A read-only memory (ROM) includes ROM cells and a bias control circuit for biasing the ROM cells. Each ROM cell includes a set of transistors. The bias control circuit is connected to body terminals of the transistors of each ROM cell to provide a bias voltage. The bias voltage, which is temperature-dependent, is generated based on junction leakages at the body terminals of the transistors. The bias control circuit controls threshold voltages of the transistors using the bias voltage. The use of a temperature-dependent bias voltage to bias the body terminals of the transistors allows for a relatively constant read margin for each ROM cell.

    Memory Circuit with Leakage Compensation
    5.
    发明申请

    公开(公告)号:US20180366205A1

    公开(公告)日:2018-12-20

    申请号:US16112402

    申请日:2018-08-24

    摘要: A memory array comprising a word line and a bit line is disclosed. Each of a plurality of memory cells of the memory array has a first terminal connected to the bit line and a current path between the first terminal and a respective second terminal. A first memory cell of the plurality of memory cells has the second terminal coupled to receive a first supply voltage when selected by the word line. A second memory cell of the plurality of memory cells has the second terminal coupled to receive a voltage different from the first supply voltage when the first memory cell is selected by the word line.

    MEMORY CIRCUIT WITH LEAKAGE COMPENSATION

    公开(公告)号:US20170243659A1

    公开(公告)日:2017-08-24

    申请号:US15050678

    申请日:2016-02-23

    IPC分类号: G11C17/08

    摘要: A memory array comprising a word line and a bit line is disclosed. Each of a plurality of memory cells of the memory array has a first terminal connected to the bit line and a current path between the first terminal and a respective second terminal. A first memory cell of the plurality of memory cells has the second terminal coupled to receive a first supply voltage when selected by the word line. A second memory cell of the plurality of memory cells has the second terminal coupled to receive a voltage different from the first supply voltage when the first memory cell is selected by the word line.