US 11,869,576 B2
Word line driving circuit and dynamic random access memory
Cheng-Jer Yang, Hefei (CN)
Assigned to CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei (CN)
Filed by CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei (CN)
Filed on Feb. 19, 2022, as Appl. No. 17/651,796.
Application 17/651,796 is a continuation of application No. PCT/CN2021/120391, filed on Sep. 24, 2021.
Claims priority of application No. 202110314168.X (CN), filed on Mar. 24, 2021.
Prior Publication US 2022/0310152 A1, Sep. 29, 2022
Int. Cl. G11C 11/40 (2006.01); G11C 11/408 (2006.01); G11C 11/4074 (2006.01)
CPC G11C 11/4085 (2013.01) [G11C 11/4074 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A word line driving circuit, comprising:
a driving circuit provided with a first input terminal, a second input terminal, a third input terminal and an output terminal, wherein the first input terminal is configured to receive a first external driving signal, the second input terminal is configured to receive a second external driving signal, and the output terminal is configured to output a word line driving signal; and
a control circuit, comprising:
a control sub-circuit;
a first switching sub-circuit provided with a control terminal, a first terminal and a second terminal, wherein the control terminal of the first switching sub-circuit is electrically connected with the control sub-circuit, the first terminal of the first switching sub-circuit is electrically connected with a first power supply voltage, and the second terminal of the first switching sub-circuit is electrically connected with the third input terminal of the driving circuit; and
a second switching sub-circuit provided with a control terminal, a first terminal and a second terminal, wherein the control terminal of the second switching sub-circuit is electrically connected with the control sub-circuit, the first terminal of the second switching sub-circuit is electrically connected with a second power supply voltage, the second terminal of the second switching sub-circuit is electrically connected with the third input terminal of the driving circuit, and the second power supply voltage is greater than a ground voltage.