Patent ID: 11887682
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. The method of reading and writing according to claim 12, wherein the anti-fuse device has a first end and a second end, the switch module includes a first switch unit and a second switch unit, and the first switch unit and the second switch unit each has a first terminal, a second terminal and a control terminal, wherein the control terminal is coupled to the control module, wherein the second terminal is coupled to the selection module, wherein the first terminal of the first switch unit is coupled to the first end of the anti-fuse device, and the first terminal of the second switch unit is coupled to the second end of the anti-fuse device;
wherein the first state of the switch module is when the first switch unit and the second switch unit are open;
wherein the second state of the switch module is when the first switch unit and the second switch unit are off; and
wherein the third state of the switch module is when the first switch unit is turned on and the second switch unit is turned off, if the anti-fuse device is not broken down; and when the first switch unit is closed, and the second switch unit is opened, if the anti-fuse device is broken down.