发明名称 Reliable readout of fuse data in an integrated circuit
摘要 An integrated circuit includes fuse readout logic and first and second sets of fuses. One of the sets includes one or more primary fuses whose burn states represent respective bit values, and the other of the sets includes one or more secondary fuses whose burn states are indicative of the bit values stored in the primary fuses. The fuse readout logic is configured to read the bit values by sensing the burn states of the primary fuses, and to conditionally correct the read bit values by sensing the burn states of one or more of the secondary fuses.
申请公布号 US9136012(B1) 申请公布日期 2015.09.15
申请号 US201414269833 申请日期 2014.05.05
申请人 Apple Inc. 发明人 Kasorla Yoav;Ojalvo Shai;Gurgi Eyal
分类号 G11C17/18;G11C17/16 主分类号 G11C17/18
代理机构 Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C. 代理人 Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
主权项 1. An integrated circuit, comprising: first and second sets of fuses, one of the sets comprising one or more primary fuses whose burn states represent respective bit values, and the other of the sets comprising one or more secondary fuses whose burn states are indicative of the bit values stored in the primary fuses; and fuse readout logic, which is configured to read the bit values by sensing the burn states of the primary fuses, and to conditionally correct the read bit values by sensing the burn states of one or more of the secondary fuses.
地址 Cupertino CA US