Invention Grant
- Patent Title: Boosted voltage driver for bit lines and other circuit nodes
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Application No.: US16254933Application Date: 2019-01-23
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Publication No.: US10755790B2Publication Date: 2020-08-25
- Inventor: Teng-Hao Yeh , Yi Ching Liu
- Applicant: MACRONIX INTERNATIONAL CO., LTD.
- Applicant Address: TW Hsinchu
- Assignee: MACRONIX INTERNATIONAL CO., LTD.
- Current Assignee: MACRONIX INTERNATIONAL CO., LTD.
- Current Assignee Address: TW Hsinchu
- Agency: Haynes Beffel & Wolfeld LLP
- Main IPC: G11C16/06
- IPC: G11C16/06 ; G11C16/24 ; H03K19/20 ; G11C16/30 ; G11C16/04 ; G11C11/56

Abstract:
A memory device is described with NAND strings and corresponding BL connected to SSL, a first power supply circuit, a second power supply circuit to distribute a higher supply voltage than the first power supply circuit, and a page buffer that generates program/inhibit outputs having a level between the first power supply voltage and a first reference voltage. Data line drivers drive nodes coupled to corresponding BL with a first voltage or a second voltage between the second power supply voltage and a second reference voltage. A data line driver includes a first switch transistor connected between the data line node and the second power supply circuit, a second switch transistor between the data line node and the second voltage reference, and a boost circuit to boost the gate of the first switch transistor above the first supply voltage level to turn on the first switch transistor.
Public/Granted literature
- US20200234770A1 BOOSTED VOLTAGE DRIVER FOR BIT LINES AND OTHER CIRCUIT NODES Public/Granted day:2020-07-23
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