TEG CIRCUIT, SEMICONDUCTOR DEVICE, AND TEST METHOD OF THE TEG CIRCUIT

    公开(公告)号:US20240125841A1

    公开(公告)日:2024-04-18

    申请号:US18454404

    申请日:2023-08-23

    CPC classification number: G01R31/2607

    Abstract: An embodiment provides a test element group (TEG) circuit, including: a first pad configured for a test voltage to be applied; an amplifier including a first input terminal connected to the first pad, a second input terminal connected to a first terminal of a test transistor, and an output terminal electrically connected to the second input terminal; a variable resistor including one terminal connected to the output terminal of the amplifier and the other terminal connected to the first terminal of the test transistor; and a gate driving circuit that supplies a gate voltage to a gate of the test transistor.

    Flash memory device for adjusting trip voltage using voltage regulator and sensing method thereof

    公开(公告)号:US12272409B2

    公开(公告)日:2025-04-08

    申请号:US18176347

    申请日:2023-02-28

    Abstract: Various example embodiments provide a flash memory device, comprising a cell string; a page buffer connected to the cell string and a bit line and configured to sense data stored in a selected memory cell by precharging a sensing node connected to the bit line; and a voltage regulator. The page buffer comprises a latch including first and second inverters coupled between a latch node and an inverted latch node; and a pull-down NMOS transistor for tripping the sensing result of the selected memory cell to the latch node. The voltage regulator adjusts a trip voltage by providing the source voltage to the pull-down NMOS transistor. The flash memory device reduce a trip voltage variation range by using only the pull-down NMOS transistor characteristics. Also, an OFF cell margin and an ON cell margin may be secured by adjusting the level of the trip voltage using the source voltage.

    FLASH MEMORY DEVICE FOR ADJUSTING TRIP VOLTAGE USING VOLTAGE REGULATOR AND SENSING METHOD THEREOF

    公开(公告)号:US20240029798A1

    公开(公告)日:2024-01-25

    申请号:US18176347

    申请日:2023-02-28

    CPC classification number: G11C16/26 G11C16/20 G11C16/0433

    Abstract: Various example embodiments provide a flash memory device, comprising a cell string having a plurality of memory cells; a page buffer connected to the cell string and a bit line and configured to sense data stored in a selected memory cell from among the plurality of memory cells by precharging a sensing node connected to the bit line; and a voltage regulator providing a source voltage to the page buffer. The page buffer comprises a latch including first and second inverters coupled between a latch node and an inverted latch node; and a pull-down NMOS transistor for tripping the sensing result of the selected memory cell to the latch node. The voltage regulator adjusts a trip voltage by providing the source voltage to the pull-down NMOS transistor. The flash memory device according to the embodiment of the present invention may reduce a trip voltage variation range by using only the pull-down NMOS transistor characteristics. Also, according to the present invention, an OFF cell margin and an ON cell margin may be sufficiently secured by adjusting the level of the trip voltage Vtrip using the source voltage Vs.

Patent Agency Ranking