Semiconductor device
AssigneeSK hynix Inc.
InventorYoung-Kyu Noh
Life of this patent
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Abstract
A semiconductor device includes a fuse selection circuit suitable for generating fuse set address signals based on a clock signal; a fuse array including a plurality of fuse sets and suitable for sequentially outputting fuse set data from the fuse sets based on the fuse set address signals; a read circuit suitable for sequentially generating read set data based on the clock signal and the fuse set data; and a calculation circuit suitable for calculating a number of used or unused fuse sets among the fuse sets based on the clock signal and a fuse information signal which includes at least one fuse read signal among a plurality of fuse read signals included in the read set data.
Claims22
A semiconductor device, comprising:
- a fuse selection circuit suitable for generating fuse set address signals based on a clock signal;
- a fuse array including a plurality of fuse sets and suitable for sequentially outputting fuse set data from the fuse sets based on the fuse set address signals;
- a read circuit suitable for sequentially generating read set data based on the clock signal and the fuse set data;
- and
- a calculation circuit suitable for calculating a number of used or unused fuse sets among the fuse sets based on the clock signal and a fuse information signal which includes at least one fuse read signal among a plurality of fuse read signals included in the read set data.
A semiconductor device, comprising:
- a fuse selection circuit suitable for generating fuse set address signals based on a clock signal;
- a fuse array including a plurality of fuse regions, each of which includes a plurality of fuse sets, and suitable for sequentially selecting a single fuse region among the fuse regions during a plurality of read periods and sequentially outputting fuse set data from the fuse sets for each read period, based on the fuse set address signals;
- a read circuit suitable for sequentially generating read set data based on the clock signal and the fuse set data;
- a control circuit suitable for generating a calculation control signal that is activated during a predetermined calculation period including at least one read period among the read periods, based on a plurality of fuse region selection signals and a read period identification signal;
- and
- a calculation circuit suitable for calculating a number of used or unused fuse sets among the fuse sets included in at least one fuse region among the fuse regions during the calculation period, and for calculating the number of used or unused fuse sets based on the calculation control signal, the clock signal, and a fuse information signal which includes at least one fuse read signal among a plurality of fuse read signals included in the read set data.
A method for operating a semiconductor device, comprising:
- entering a boot-up mode;
- sequentially reading fuse set data from a plurality of fuse sets included in a fuse array whenever a clock signal toggles and sequentially generating read set data which corresponds to the fuse set data;
- and
- calculating a number of used or unused fuse sets among the fuse sets based on the clock signal and a fuse information signal which includes at least one fuse read signal among a plurality of fuse read signals included in the read set data.
A method for operating a semiconductor device, comprising:
- entering a boot-up mode;
- sequentially selecting a plurality of fuse regions included in a fuse array during a plurality of read periods based on a clock signal, sequentially reading fuse set data from a plurality of fuse sets included in each of the fuse regions whenever the clock signal toggles, and sequentially generating read set data which corresponds to the fuse set data;
- and
- calculating the number of used fuse sets or unused fuse sets among fuse sets included in at least one fuse region among the fuse regions during a predetermined calculation period which includes at least one read period among the read periods, based on the clock signal, a read period identification signal, and a fuse information signal which includes at least one fuse read signal among a plurality of fuse read signals included in the read set data.
Dependencies are inferred from the claim text.