US 12,190,940 B2
Memory device and operating method thereof
He-Zhou Wan, Shanghai (CN); Xiu-Li Yang, Shanghai (CN); Mu-Yang Ye, Nanjing (CN); and Yan-Bo Song, Shanghai (CN)
Assigned to TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu (TW); TSMC NANJING COMPANY LIMITED, Nanjing (CN); and TSMC CHINA COMPANY LIMITED, Shanghai (CN)
Filed by TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu (TW); TSMC Nanjing Company Limited, Nanjing (CN); and TSMC China Company Limited, Shanghai (CN)
Filed on Nov. 1, 2023, as Appl. No. 18/499,449.
Application 18/499,449 is a continuation of application No. 17/973,823, filed on Oct. 26, 2022, granted, now 11,862,231.
Application 17/973,823 is a continuation of application No. 17/208,523, filed on Mar. 22, 2021, granted, now 11,514,974, issued on Nov. 29, 2022.
Claims priority of application No. 202110176842.2 (CN), filed on Feb. 9, 2021.
Prior Publication US 2024/0071470 A1, Feb. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G11C 11/408 (2006.01); G11C 5/06 (2006.01); G11C 11/4074 (2006.01); G11C 11/4094 (2006.01)
CPC G11C 11/4085 (2013.01) [G11C 5/063 (2013.01); G11C 11/4074 (2013.01); G11C 11/4087 (2013.01); G11C 11/4094 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A memory device, comprising:
a first driving circuit configured to provide a first current signal from a first node to a second node according to a decoder signal;
a second driving circuit configured to provide a second current signal from the first node to a third node according to the decoder signal;
a third driving circuit configured to couple the first node to a reference voltage terminal according to the decoder signal;
a first switch configured to transmit the first current signal to the reference voltage terminal;
a second switch separated from the first switch, and configured to transmit the second current signal to the reference voltage terminal; and
a modulating circuit configured to transmit each of the first current signal and the second current signal to the reference voltage terminal when the first switch and the second switch are turned off.