Devices and methods for programming a fuse
Fuse programming circuits, devices and methods. In some embodiments, a fuse circuit can include a fuse pad configured to receive a voltage, a fuse having a first end coupled to the fuse pad and a second end coupled to a switching element configured to enable a current to pass from the fuse pad to a ground potential.
1. A radio-frequency module comprising:
a semiconductor die including an integrated circuit; and
a fuse circuit including a fuse pad configured to receive a voltage, a fuse having a first end coupled to the fuse pad and a second end coupled to a switching element configured to enable a current to pass from the fuse pad to a ground potential, and a fuse state sensing circuit coupled to the second end of the fuse and configured to apply a sense current to the second end of the fuse such that the sense current flows through the fuse to the fuse pad.
2. The radio-frequency module of claim 1 wherein the fuse state sensing circuit is configured to be coupled to a plurality of fuse circuits.
3. The radio-frequency module of claim 1 wherein the fuse state sensing circuit is dedicated to only be coupled to the fuse circuit.
4. The radio-frequency module of claim 1 wherein the switching element is a voltage-controlled switching element.
5. The radio-frequency module of claim 4 wherein the voltage-controlled switching element is coupled to a fuse program control signal.
6. The radio-frequency module of claim 1 wherein the switching element is configured to be closed during a programming operational mode of the fuse.
7. The radio-frequency module of claim 6 wherein the fuse pad receives a programming voltage during the programming operational mode of the fuse.
8. The radio-frequency module of claim 1 wherein the switching element is configured to be open during a sensing operational mode of the fuse.
9. The radio-frequency module of claim 8 wherein the fuse pad is coupled to another ground potential during the sensing operational mode of the fuse.
10. The radio-frequency module of claim 9 wherein the other ground potential is the same as the ground potential.
11. The radio-frequency module of claim 9 wherein the ground potential is different from the other ground potential.
12. The radio-frequency module of claim 1 wherein the fuse circuit is implemented on the semiconductor die.
13. The radio-frequency module of claim 1 wherein the switching element is a metal oxide field effect transistor.
14. The radio-frequency module of claim 1 wherein the radio-frequency module is one or more of: a front-end module, a power amplifier module, an antenna switch module, or a diversity receive module.
15. An electronic module comprising:
a packaging substrate configured to receive a plurality of components, including a semiconductor die including an integrated circuit; and
a fuse circuit including a fuse pad configured to receive a voltage, a fuse having a first end coupled to the fuse pad and a second end coupled to a switching element configured to enable a current to pass from the fuse pad to a ground potential, and a fuse state sensing circuit coupled to the second end of the fuse and configured to apply a sense current to the second end of the fuse such that the sense current flows through the fuse to the fuse pad.
16. The electronic module of claim 15 wherein the switching element is a voltage-controlled switching element.
17. The electronic module of claim 16 wherein the voltage-controlled switching element is coupled to a fuse program control signal.
18. The electronic module of claim 15 wherein the switching element is configured to be closed during a programming operational mode of the fuse.
19. The electronic module of claim 18 wherein the fuse pad receives a programming voltage during the programming operational mode of the fuse.
20. The electronic module of claim 15 wherein the switching element is configured to be open during a sensing operational mode of the fuse.