Adaptive algorithm for electrical fuse programming
Patent 6747481 Issued on June 8, 2004. Estimated Expiration Date: 
November 22, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 22, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesStructure and method for programming antifuses in an integrated circuit array Programmed programmable device and method for programming antifuses of a programmable device Virtual programmable device and method of programming Decode scheme for programming antifuses arranged in banks Patent #: 6339559 InventorAssigneeApplicationNo. 10301986 filed on 11/22/2002US Classes:326/41, Significant integrated structure, layout, or layout interconnections326/38, Having details of setting or programming of interconnections or logic functions327/525Fusible link or intentional destruct circuitExaminersPrimary: Le, Don PhuAttorney, Agent or FirmInternational ClassH03K 19177AbstractThis invention describes a means for preventing eFuses from growing back under successive programming pulses after being successfully fused by an earlier set of programming pulses. The solution is achieved through the use of an adaptive programming algorithm for blowing the eFuses. In the adaptive algorithm once a high enough resistance on a blown eFuse has been attained it will not receive additional programming pulses that could cause it to become measurably lower resistance.Field of SearchFusible link or intentional destruct circuit | |
