Electronic fuse circuit structure and control method thereof

Abstract

An electronic fuse circuit structure and a control method thereof, the electronic fuse circuit structure comprising: a plurality of independently controlled sub-driving structures, wherein every two sub-driving structures are connected in parallel to form a driving structure, and the driving structure is used for controlling a corresponding electronic fuse; and the electronic fuse is electrically connected with the driving structure. The electronic fuse circuit structure is beneficial to improve the storage capacity of the electronic fuse.

Description

Technical Field

[0001] This invention relates to the field of semiconductor manufacturing, and more particularly to an electronic fuse circuit structure and its control method. Background Technology

[0002] With the rapid development of new Internet technologies such as artificial intelligence, cloud computing, and Chat Generative Pre-trained Transformer (Chat GPT), a natural language processing tool driven by artificial intelligence, the power supply requirements and stability requirements for central processing units (CPUs), graphics processing units (GPUs), and high-precision chips are becoming increasingly stringent. Therefore, strengthening the monitoring and protection design of power supply is becoming increasingly important.

[0003] As power demand increases, it also brings about power safety hazards. In order to strengthen power protection and solve these hazards, current power supply designs include separate electronic fuses (Efuse) on each power supply line. As circuit board integration becomes higher and structure becomes more complex, more electronic fuses need to be designed for independent protection.

[0004] Electronic fuses are commonly used in integrated circuits to define or alter the structure or operation of the integrated circuit after it has been manufactured. For example, in random access memory (RAM), electronic fuses are typically used to enable redundant memory modules to replace those determined to be faulty during testing. Summary of the Invention

[0005] The problem solved by this invention is to provide an electronic fuse circuit structure and its control method, which is beneficial to increasing the storage capacity of electronic fuses.

[0006] To address the aforementioned problems, embodiments of the present invention provide an electronic fuse circuit structure, comprising: multiple independently controlled sub-driving structures, wherein every two sub-driving structures are connected in parallel to form a driving structure, and the driving structure is used to control the corresponding electronic fuse; the electronic fuse is electrically connected to the driving structure.

[0007] Optionally, in the multiple sub-drive structures, each sub-drive structure is connected in parallel with two other sub-drive structures to form two independent drive structures.

[0008] Optionally, in the multiple sub-driving structures, each sub-driving structure is connected in parallel with the two adjacent sub-driving structures according to the arrangement order of the multiple sub-driving structures, so as to form two independent driving structures.

[0009] Optionally, according to the arrangement order of multiple sub-driving structures, adjacent driving structures can form a series of driving structure groups.

[0010] Optionally, within the same series of drive structure groups, the electronic fuses corresponding to adjacent drive structures will not melt simultaneously, depending on the arrangement order of the multiple sub-drive structures.

[0011] Optionally, the drive structure is electrically connected to the electronic fuse in a one-to-one correspondence.

[0012] Optionally, the drive current of each sub-drive structure is equal.

[0013] Optionally, each sub-driving structure includes multiple transistors connected in parallel, and the number of transistors in each sub-driving structure is equal.

[0014] Accordingly, embodiments of the present invention also provide a control method for an electronic fuse circuit structure, comprising: providing the electronic fuse circuit structure provided in the embodiments of the present invention; and controlling the electronic fuse through a control sub-drive structure.

[0015] Optionally, in the step of controlling the electronic fuse by controlling the sub-driving structure, the output signal of the sub-driving structure is 0 or 1, and when the output signals of all sub-driving structures connected to the electronic fuse are 1, the electronic fuse blows; when at least one of the output signals of the sub-driving structures connected to the electronic fuse is 0, the electronic fuse does not blow.

[0016] Optionally, in the step of providing the electronic fuse circuit structure, among the multiple sub-driving structures, each sub-driving structure is connected in parallel with two adjacent sub-driving structures according to the arrangement order of the multiple sub-driving structures to form two independent driving structures; according to the arrangement order of the multiple sub-driving structures, adjacent driving structures form a series of driving structure groups; in the step of controlling the electronic fuse by controlling the sub-driving structures, in the series of driving structure groups, according to the arrangement order of the multiple sub-driving structures, the electronic fuses corresponding to adjacent driving structures will not melt simultaneously.

[0017] Optionally, in the step of controlling the electronic fuse by controlling the sub-driving structure, the output signals of four adjacent sub-driving structures are not all 1 according to the arrangement order of the multiple sub-driving structures.

[0018] Compared with the prior art, the technical solution of the embodiments of the present invention has the following advantages:

[0019] In the electronic fuse circuit structure provided by this invention, there are multiple independently controlled sub-driving structures. Each pair of sub-driving structures is connected in parallel to form a driving structure, which controls the corresponding electronic fuse. The electronic fuse is electrically connected to the driving structure. In this invention, the multiple sub-driving structures are independently controlled, and each pair of sub-driving structures is connected in parallel to form a driving structure. That is, each sub-driving structure can be connected in parallel with a different sub-driving structure multiple times to form multiple independent driving structures. Therefore, each sub-driving structure can form more than one driving structure, thus enabling the reuse of sub-driving structures. With the same number of sub-driving structures, the number of driving structures increases, thereby increasing the number of electronic fuses corresponding to the driving structure, which is beneficial for increasing the storage capacity of electronic fuses.

[0020] In the control method provided by the embodiments of the present invention, the electronic fuse circuit structure provided by the embodiments of the present invention controls the electronic fuse by controlling the sub-driving structure. In the embodiments of the present invention, multiple sub-driving structures are controlled independently, and every two sub-driving structures are connected in parallel to form a driving structure. That is, each sub-driving structure can be connected in parallel with another different sub-driving structure multiple times to form multiple independent driving structures. Thus, each sub-driving structure can form more than one driving structure, thereby enabling the reuse of sub-driving structures. With the same number of sub-driving structures, the number of driving structures formed is increased, thereby increasing the number of electronic fuses corresponding to the driving structure, which is conducive to improving the storage capacity of electronic fuses. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an electronic fuse circuit structure.

[0022] Figure 2 This is a schematic diagram of the circuit structure of an embodiment of the electronic fuse circuit structure of the present invention;

[0023] Figure 3 This is a flowchart of an embodiment of the control method for the electronic fuse circuit structure of the present invention. Detailed Implementation

[0024] Currently, it is difficult to increase the storage capacity of electronic fuses. This paper analyzes the reasons why the storage capacity of electronic fuses needs to be improved, based on the circuit structure of an electronic fuse.

[0025] Figure 1 This is a schematic diagram of an electronic fuse circuit structure.

[0026] The circuit structure includes: multiple independently controlled drive structures 10; and electronic fuses 20 that are electrically connected to the drive structures 10 respectively.

[0027] Each driver 10 controls an electronic fuse 20 independently. The driver 10 provides a large current to the electronic fuse 20 for writing. However, each driver 10 is only used to control the writing of one bit, and the writing is done in one go. That is, the writing of one bit is controlled from Input1a, Input2a, Input3a, Input4a, ... respectively, corresponding to controlling eFuse Link1, eFuse Link2, eFuse Link3, eFuse Link4, ... of the electronic fuse 20. This results in low space utilization, which makes it difficult to increase the storage capacity of the electronic fuse 20.

[0028] To address the technical problem, embodiments of the present invention provide an electronic fuse circuit structure, comprising: multiple independently controlled sub-driving structures, wherein every two sub-driving structures are connected in parallel to form a driving structure, and the driving structure is used to control the corresponding electronic fuse; the electronic fuse is electrically connected to the driving structure.

[0029] In this embodiment of the invention, multiple sub-driving structures are controlled independently, and every two sub-driving structures are connected in parallel to form a driving structure. That is, each sub-driving structure can be connected in parallel with another different sub-driving structure multiple times to form multiple independent driving structures. Thus, each sub-driving structure can form more than one driving structure, thereby enabling the reuse of sub-driving structures. With the same number of sub-driving structures, the number of driving structures formed is increased, thereby increasing the number of electronic fuses corresponding to the driving structure, which is conducive to improving the storage capacity of electronic fuses.

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Figure 2 A schematic diagram of the circuit structure of an embodiment of the electronic fuse circuit structure of the present invention.

[0032] refer to Figure 2 The electronic fuse circuit structure includes: multiple independently controlled sub-driver structures 101, wherein every two sub-driver structures 101 are connected in parallel to form a driver structure 100, and the driver structure 100 is used to control the corresponding electronic fuse 200; the electronic fuse 200 is electrically connected to the driver structure 100.

[0033] The sub-drive structure 101 is used as the basic unit structure constituting the drive structure 100, that is, the sub-drive structure 101 is used as the secondary drive structure for driving the electronic fuse 200.

[0034] In this embodiment, every two sub-driving structures 101 are connected in parallel to form a driving structure 100, and the driving structure 100 is used to control the corresponding electronic fuse 200.

[0035] Two sub-driving structures 101 connected in parallel form a driving structure 100, that is, any two of the multiple sub-driving structures 101 can be connected in parallel to form a driving structure 100.

[0036] Two sub-driving structures 101 connected in parallel form a driving structure 100. The sum of the currents generated by the two sub-driving structures 101 is the driving current of the driving structure 100 used to fuse the electronic fuse 200.

[0037] In this embodiment, the electronic fuse 200 is electrically connected to the driving structure 100, that is, the driving structure 100 provides driving current to the electronic fuse 200. When the driving current reaches the writing current of the electronic fuse 200, the electronic fuse 200 melts. When the driving current does not reach the writing current of the electronic fuse 200, the electronic fuse 200 is not strong enough to melt.

[0038] Specifically, in this embodiment, each sub-driving structure 101 controls the writing of one bit, where "1" indicates that the transistor of the sub-driving structure 101 is turned on, and "0" indicates that the transistor of the sub-driving structure 101 is turned off. When both sub-driving structures 101 constituting the driving structure 100 are "1" signals, the electronic fuse 200 corresponding to the driving structure 100 blows. When either of the two sub-driving structures 101 constituting the driving structure 100 is "0" signal, the electronic fuse 200 corresponding to the driving structure 100 is insufficient to blow.

[0039] In this embodiment, multiple sub-driving structures 101 are controlled independently, and every two sub-driving structures 101 are connected in parallel to form a driving structure 100. That is, each sub-driving structure 101 can be connected in parallel with another different sub-driving structure 101 multiple times to form multiple independent driving structures 100. Thus, each sub-driving structure 101 can form more than one driving structure 100, thereby enabling the reuse of the sub-driving structures 101. With the same number of sub-driving structures 101, the number of driving structures 100 formed is increased, thereby increasing the number of electronic fuses 200 corresponding to the driving structures 100, which is conducive to improving the storage capacity of the electronic fuses 200.

[0040] In this embodiment, the driving current of each sub-driving structure 101 is equal.

[0041] If the driving current of each sub-driving structure 101 is equal, then the driving current of the driving structure 100 formed by two sub-driving structures 101 is equal, thereby enabling multiple driving structures 100 to drive the basic function of the electronic fuse 200.

[0042] In this embodiment, each sub-driving structure 101 includes a plurality of transistors connected in parallel, and the number of transistors in each sub-driving structure 101 is equal.

[0043] Multiple transistors connected in parallel constitute a sub-driving structure 101 to generate a larger current through parallel connection, and the number of transistors in each sub-driving structure 101 is equal to achieve that each sub-driving structure 101 generates an equal driving current.

[0044] Specifically, in this embodiment, each sub-driving structure 101 includes multiple parallel transistors, among which the transistors are NMOS transistors.

[0045] In this embodiment, each of the multiple sub-driving structures 101 is connected in parallel with two other sub-driving structures 101 to form two independent driving structures 100.

[0046] In the multiple sub-driving structures 101, each sub-driving structure 101 is connected in parallel with two other sub-driving structures 101 to form two independent driving structures 100. That is, one sub-driving structure 101 can form an independent driving structure 100 with another sub-driving structure 101. This sub-driving structure 101 can also form an independent driving structure 100 with another sub-driving structure 101. In other words, the driving current of one sub-driving structure 101 can affect two driving structures 100 at the same time. That is, one sub-driving structure 101 can control two electronic fuses 200 at the same time, thereby increasing the number of electronic fuses 200 and thus improving the storage capacity of the electronic fuses 200.

[0047] In this embodiment, among the multiple sub-driving structures 101, according to the arrangement order of the multiple sub-driving structures 101 (e.g., Figure 2 (As shown in the arrangement order in the X direction), each sub-drive structure 101 is connected in parallel with two adjacent sub-drive structures 101 to form two independent drive structures 100.

[0048] According to the arrangement order of the multiple sub-driving structures 101, each sub-driving structure 101 is connected in parallel with two adjacent sub-driving structures 101 to form two independent driving structures 100. That is, in the arrangement order of the multiple sub-driving structures 101, each sub-driving structure 101 and the previous sub-driving structure 101 form an independent driving structure 100, and the sub-driving structure 101 and the next sub-driving structure 101 form another independent driving structure 100. Thus, each sub-driving structure 101 can participate in controlling two electronic fuses 200. At the same time, the wiring pattern of the sub-driving structures 101 forming the driving structure 100 is regular and simple, making the circuit structure of the electronic fuse 200 in this embodiment easy to form.

[0049] Furthermore, according to the arrangement order of the multiple sub-driving structures 101, each sub-driving structure 101 is connected in parallel with two adjacent sub-driving structures 101 to form two independent driving structures 100. That is, in the circuit structure manufacturing process, the number and position of the transistors used for parallel connection can be changed without changing the transistor wiring. This changes the multiple parallel transistors originally used to form one driving structure 100. After wiring, half of the original number of transistors are connected in parallel to form independently controlled sub-driving structures 101, and two sub-driving structures 101 are then connected in parallel to form one driving structure 100. Thus, this embodiment can change the circuit by changing the wiring (layout) layer structure without adding an additional mask (mask) process. It can be seen that in this embodiment, the number of electronic fuses 200 that can be controlled by the driving structure 100 formed with the same number of transistors as before is doubled, thereby realizing the reuse of the sub-driving structures 101 and thus increasing the storage capacity of the electronic fuses 200.

[0050] In this embodiment, according to the arrangement order of multiple sub-driving structures 101, adjacent driving structures 100 form a series of driving structure groups.

[0051] Accordingly, in this embodiment, in the same series of driving structure groups, according to the arrangement order of multiple sub-driving structures 101, the electronic fuses 200 corresponding to adjacent driving structures 100 will not melt simultaneously.

[0052] As an example, such as Figure 2 As shown, adjacent drive structures 100 constitute the same series of drive structure groups, that is, they constitute two drive structure groups, corresponding to electronic fuse group 210 and electronic fuse group 220 respectively. In the same series of drive structure groups, according to the arrangement order of multiple sub-drive structures 101, the electronic fuses 200 corresponding to adjacent drive structures 100 will not blow simultaneously. That is, in electronic fuse group 210, adjacent electronic fuses 200 will not blow simultaneously, and in electronic fuse group 220, adjacent electronic fuses 200 will not blow simultaneously.

[0053] As an example, such as Figure 2As shown, Input 1a and Input 1b input signals to two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link1 in the electronic fuse group 210; Input 1b and Input 2a input signals to two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link2 in the electronic fuse group 220; Input 2a and Input 2b input signals to two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link3 in the electronic fuse group 210; Input 2b and Input Input 3a inputs signals to the two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link 4 in the electronic fuse group 220; Input 3a and Input 3b input signals to the two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link 5 in the electronic fuse group 210; Input 3b and Input 4a input signals to the two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link 6 in the electronic fuse group 220; Input 4a and Input 4b input signals to the two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link 6 in the electronic fuse group 220. Link7; ...; and so on, constitute the circuit structure of the electronic fuse 200 in this embodiment.

[0054] In this embodiment, if, in the same series of drive structure groups, according to the arrangement order of multiple sub-drive structures 101, the electronic fuses 200 corresponding to adjacent drive structures 100 can blow simultaneously—that is, as an example, in the electronic fuse group 210, adjacent electronic fuses 200 can blow simultaneously, for example, eFuse Link1 and eFuse Link3 blow simultaneously—then in the corresponding sub-drive structure 101, Input 1a, Input 1b, Input 2a, and Input 2b are all "1" signals. At this time, the electronic fuse 200 controlled by the drive structure 100 formed by the sub-drive structures 101 corresponding to Input 1b and Input 2a is also blown simultaneously. Therefore, the electronic fuse 200 cannot be independently controlled; that is, eFuse Link2 in the electronic fuse group 220 cannot be independently controlled, but can only be controlled because in the electronic fuse group 210, eFuse Link1 and eFuse Link2 are both "1" signals. Link3 is also blown simultaneously and thus blown along with it. Therefore, in the same series of drive structure groups, according to the arrangement order of multiple sub-drive structures 101, the electronic fuses 200 corresponding to adjacent drive structures 100 will not blow simultaneously.

[0055] In this embodiment, the drive structure 100 corresponds one-to-one with the electronic fuse 200.

[0056] Each drive structure 100 corresponds to an electronic fuse 200, enabling each drive structure 100 to control the corresponding electronic fuse 200, thereby allowing each electronic fuse 200 to be written independently.

[0057] Figure 3 This is a flowchart of an embodiment of the control method for the electronic fuse circuit structure of the present invention.

[0058] Reference Figure 2 and Figure 3 Step S1: Provide the electronic fuse circuit structure provided in the foregoing embodiments of the present invention.

[0059] The sub-drive structure 101 is used as the basic unit structure constituting the drive structure 100, that is, the sub-drive structure 101 is used as the secondary drive structure for driving the electronic fuse 200.

[0060] In this embodiment, every two sub-driving structures 101 are connected in parallel to form a driving structure 100, and the driving structure 100 is used to control the corresponding electronic fuse 200.

[0061] Two sub-driving structures 101 connected in parallel form a driving structure 100, that is, any two of the multiple sub-driving structures 101 can be connected in parallel to form a driving structure 100.

[0062] Two sub-driving structures 101 connected in parallel form a driving structure 100. The sum of the currents generated by the two sub-driving structures 101 is the driving current of the driving structure 100 used to fuse the electronic fuse 200.

[0063] In this embodiment, the electronic fuse 200 is electrically connected to the driving structure 100, that is, the driving structure 100 provides driving current to the electronic fuse 200. When the driving current reaches the writing current of the electronic fuse 200, the electronic fuse 200 melts. When the driving current does not reach the writing current of the electronic fuse 200, the electronic fuse 200 is not strong enough to melt.

[0064] In this embodiment, multiple sub-driving structures 101 are controlled independently, and every two sub-driving structures 101 are connected in parallel to form a driving structure 100. That is, each sub-driving structure 101 can be connected in parallel with another different sub-driving structure 101 multiple times to form multiple independent driving structures 100. Thus, each sub-driving structure 101 can form more than one driving structure 100, thereby enabling the reuse of the sub-driving structures 101. With the same number of sub-driving structures 101, the number of driving structures 100 formed is increased, thereby increasing the number of electronic fuses 200 corresponding to the driving structures 100, which is conducive to improving the storage capacity of the electronic fuses 200.

[0065] In this embodiment, the driving current of each sub-driving structure 101 is equal.

[0066] If the driving current of each sub-driving structure 101 is equal, then the driving current of the driving structure 100 formed by two sub-driving structures 101 is equal, thereby enabling multiple driving structures 100 to drive the basic function of the electronic fuse 200.

[0067] In this embodiment, each sub-driving structure 101 includes a plurality of transistors connected in parallel, and the number of transistors in each sub-driving structure 101 is equal.

[0068] Multiple transistors connected in parallel constitute a sub-driving structure 101 to generate a larger current through parallel connection, and the number of transistors in each sub-driving structure 101 is equal to achieve that each sub-driving structure 101 generates an equal driving current.

[0069] Specifically, in this embodiment, each sub-driving structure 101 includes multiple parallel transistors, among which the transistors are NMOS transistors.

[0070] In this embodiment, each of the multiple sub-driving structures 101 is connected in parallel with two other sub-driving structures 101 to form two independent driving structures 100.

[0071] In the multiple sub-driving structures 101, each sub-driving structure 101 is connected in parallel with two other sub-driving structures 101 to form two independent driving structures 100. That is, one sub-driving structure 101 can form an independent driving structure 100 with another sub-driving structure 101. This sub-driving structure 101 can also form an independent driving structure 100 with another sub-driving structure 101. In other words, the driving current of one sub-driving structure 101 can affect two driving structures 100 at the same time. That is, one sub-driving structure 101 can control two electronic fuses 200 at the same time, thereby increasing the number of electronic fuses 200 and thus improving the storage capacity of the electronic fuses 200.

[0072] In this embodiment, among the multiple sub-driving structures 101, according to the arrangement order of the multiple sub-driving structures 101 (e.g., Figure 2 (As shown in the arrangement order in the X direction), each sub-drive structure 101 is connected in parallel with two adjacent sub-drive structures 101 to form two independent drive structures 100.

[0073] According to the arrangement order of the multiple sub-driving structures 101, each sub-driving structure 101 is connected in parallel with two adjacent sub-driving structures 101 to form two independent driving structures 100. That is, in the arrangement order of the multiple sub-driving structures 101, each sub-driving structure 101 and the previous sub-driving structure 101 form an independent driving structure 100, and the sub-driving structure 101 and the next sub-driving structure 101 form another independent driving structure 100. Thus, each sub-driving structure 101 can participate in controlling two electronic fuses 200. At the same time, the wiring pattern of the sub-driving structures 101 forming the driving structure 100 is regular and simple, making the circuit structure of the electronic fuse 200 in this embodiment easy to form.

[0074] Furthermore, according to the arrangement order of the multiple sub-driving structures 101, each sub-driving structure 101 is connected in parallel with two adjacent sub-driving structures 101 to form two independent driving structures 100. That is, in the circuit structure manufacturing process, the number and position of the transistors used for parallel connection can be changed without changing the transistor wiring. This changes the multiple parallel transistors originally used to form one driving structure 100. After wiring, half of the original number of transistors are connected in parallel to form independently controlled sub-driving structures 101, and two sub-driving structures 101 are then connected in parallel to form one driving structure 100. Thus, this embodiment can change the circuit by changing the wiring (layout) layer structure without adding an additional mask (mask) process. It can be seen that in this embodiment, the number of electronic fuses 200 that can be controlled by the driving structure 100 formed with the same number of transistors as before is doubled, thereby realizing the reuse of the sub-driving structures 101 and thus increasing the storage capacity of the electronic fuses 200.

[0075] In this embodiment, according to the arrangement order of multiple sub-driving structures 101, adjacent driving structures 100 form a series of driving structure groups.

[0076] Step S2: Control the electronic fuse 200 by controlling the sub-drive structure 101.

[0077] As an example, such as Figure 2As shown, Input 1a and Input 1b input signals to two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link1 in the electronic fuse group 210; Input 1b and Input 2a input signals to two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link2 in the electronic fuse group 220; Input 2a and Input 2b input signals to two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link3 in the electronic fuse group 210; Input 2b and Input Input 3a inputs signals to the two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link 4 in the electronic fuse group 220; Input 3a and Input 3b input signals to the two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link 5 in the electronic fuse group 210; Input 3b and Input 4a input signals to the two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link 6 in the electronic fuse group 220; Input 4a and Input 4b input signals to the two sub-drive structures 101, and the drive structure 100 formed by the two sub-drive structures 101 generates current flowing into the electronic fuse 200 to control eFuse Link 6 in the electronic fuse group 220. Link7; ...; and so on, constitute the circuit structure of the electronic fuse 200 in this embodiment.

[0078] In this embodiment, in the step of controlling the electronic fuse 200 by controlling the sub-driving structure 101, the output signal of the sub-driving structure 101 is 0 or 1. When the output signals of all sub-driving structures 101 connected to the electronic fuse 200 are 1, the electronic fuse 200 blows. When at least one of the output signals of the sub-driving structures 101 connected to the electronic fuse 200 is 0, the electronic fuse 200 does not blow.

[0079] Specifically, in this embodiment, each sub-driving structure 101 controls the writing of one bit, where "1" indicates that the transistor of the sub-driving structure 101 is turned on, and "0" indicates that the transistor of the sub-driving structure 101 is turned off. When both sub-driving structures 101 constituting the driving structure 100 are "1" signals, the current generated by the driving structure 100 reaches the writing current, and the electronic fuse 200 corresponding to the driving structure 100 blows. When either of the two sub-driving structures 101 constituting the driving structure 100 is "0" signal, the current generated by the driving structure 100 is half of the writing current or 0, and the electronic fuse 200 corresponding to the driving structure 100 is insufficient to blow.

[0080] In this embodiment, in the step of controlling the electronic fuse 200 by controlling the sub-driving structure 101, in the same series of driving structure groups, according to the arrangement order of multiple sub-driving structures 101, the electronic fuses 200 corresponding to adjacent driving structures 100 will not melt simultaneously.

[0081] As an example, such as Figure 2 As shown, adjacent drive structures 100 constitute the same series of drive structure groups, that is, they constitute two drive structure groups, corresponding to electronic fuse group 210 and electronic fuse group 220 respectively. According to the arrangement order of multiple sub-drive structures 101, the electronic fuses 200 corresponding to adjacent drive structures 100 will not blow at the same time. That is, in electronic fuse group 210, adjacent electronic fuses 200 will not blow at the same time, and in electronic fuse group 220, adjacent electronic fuses 200 will not blow at the same time.

[0082] In this embodiment, if, in the same series of drive structure groups, according to the arrangement order of multiple sub-drive structures 101, the electronic fuses 200 corresponding to adjacent drive structures 100 can blow simultaneously—that is, as an example, in the electronic fuse group 210, adjacent electronic fuses 200 can blow simultaneously, for example, eFuse Link1 and eFuse Link3 blow simultaneously—then in the corresponding sub-drive structure 101, Input 1a, Input 1b, Input 2a, and Input 2b are all "1" signals. At this time, the electronic fuse 200 controlled by the drive structure 100 formed by the sub-drive structures 101 corresponding to Input 1b and Input 2a is also blown simultaneously. Therefore, the electronic fuse 200 cannot be independently controlled; that is, eFuse Link2 in the electronic fuse group 220 cannot be independently controlled, but can only be controlled because in the electronic fuse group 210, eFuse Link1 and eFuse Link2 are both "1" signals. Link3 is also blown simultaneously and thus blown along with it. Therefore, in the same series of drive structure groups, according to the arrangement order of multiple sub-drive structures 101, the electronic fuses 200 corresponding to adjacent drive structures 100 will not blow simultaneously.

[0083] Accordingly, in this embodiment, in the step of controlling the electronic fuse 200 by controlling the sub-driving structure 101, the output signals of four adjacent sub-driving structures 101 are not all 1 according to the arrangement order of the multiple sub-driving structures 101.

[0084] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An electronic fuse circuit structure, characterized in that, include: Multiple independently controlled sub-drive structures, wherein every two sub-drive structures are connected in parallel to form a drive structure, and the drive structure is used to control the corresponding electronic fuse; An electronic fuse is electrically connected to the drive structure.

2. The electronic fuse circuit structure as described in claim 1, characterized in that, In the plurality of sub-driving structures, each sub-driving structure is connected in parallel with two other sub-driving structures to form two independent driving structures.

3. The electronic fuse circuit structure as described in claim 2, characterized in that, In the plurality of sub-driving structures, each sub-driving structure is connected in parallel with two adjacent sub-driving structures according to the arrangement order of the plurality of sub-driving structures, so as to form two independent driving structures.

4. The electronic fuse circuit structure as described in claim 3, characterized in that, According to the arrangement order of the multiple sub-driving structures, the driving structures that are spaced apart from each other constitute a series of driving structure groups.

5. The electronic fuse circuit structure as described in claim 4, characterized in that, In the same series of drive structure groups, according to the arrangement order of the multiple sub-drive structures, the electronic fuses corresponding to adjacent drive structures will not melt simultaneously.

6. The electronic fuse circuit structure as described in claim 1, characterized in that, The driving structure is electrically connected to the electronic fuse in a one-to-one correspondence.

7. The electronic fuse circuit structure as described in claim 1, characterized in that, The driving current of each of the sub-driving structures is equal.

8. The electronic fuse circuit structure as described in claim 7, characterized in that, Each of the sub-driving structures includes a plurality of transistors connected in parallel, and the number of transistors in each sub-driving structure is equal.

9. A control method for an electronic fuse circuit structure, characterized in that, include: Provide an electronic fuse circuit structure as described in any one of claims 1 to 8; The electronic fuse is controlled by controlling the sub-drive structure.

10. The control method as described in claim 9, characterized in that, In the step of controlling the electronic fuse by controlling the sub-driving structure, the output signal of the sub-driving structure is 0 or 1, and when the output signals of all sub-driving structures connected to the electronic fuse are 1, the electronic fuse blows; when at least one of the output signals of the sub-driving structures connected to the electronic fuse is 0, the electronic fuse does not blow.

11. The control method as described in claim 10, characterized in that, In the step of providing the electronic fuse circuit structure, in the plurality of sub-driving structures, according to the arrangement order of the plurality of sub-driving structures, each sub-driving structure is connected in parallel with two adjacent sub-driving structures to form two independent driving structures; According to the arrangement order of the multiple sub-driving structures, the driving structures that are spaced apart from each other constitute a series of driving structure groups; In the step of controlling the electronic fuse by controlling the sub-drive structure, in the same series of drive structure groups, according to the arrangement order of multiple sub-drive structures, the electronic fuses corresponding to adjacent drive structures will not melt simultaneously.

12. The control method as described in claim 11, characterized in that, In the step of controlling the electronic fuse by controlling the sub-driving structure, according to the arrangement order of the multiple sub-driving structures, the output signals of four adjacent sub-driving structures are not all 1.

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