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US 11,626,186 B2Granted
Apparatus performing repair operation
AssigneeSK hynix Inc.
InventorsDong Beom Lee, Hyeong Soo Jeong
Life of this patent
Estimating the term…
Abstract
An apparatus includes a boot-up control circuit configured to, when a first boot-up operation is performed, latch first fuse data by receiving the first fuse data and fuse information from a fuse circuit and configured to, when a second boot-up operation is performed, latch second fuse data by receiving the second fuse data from the fuse circuit based on the fuse information; and a rupture control circuit configured to store a failure address as the second fuse data by rupturing the fuse circuit based on the fuse information.
Claims19
An apparatus comprising:
- a boot-up control circuit configured to, when a first boot-up operation is performed, latch first fuse data by receiving the first fuse data and fuse information from a fuse circuit and configured to, when a second boot-up operation is performed, latch second fuse data by receiving the second fuse data from the fuse circuit based on the fuse information;
- a rupture control circuit configured to store a failure address as the second fuse data by rupturing the fuse circuit based on the fuse information;
- and
- a data input/output control circuit configured to control a path through which data is input to and output from a memory, by comparing an internal address with first latch data when a predetermined operation is performed,
- wherein an internal command for the predetermined operation is deactivated during a period in which the first boot-up operation is performed in a repair mode.
2 more elements
An apparatus comprising:
- a boot-up control circuit configured to generate first and second boot-up signals in a repair mode and configured to latch fuse data by receiving the fuse data based on the first and second boot-up signals;
- and
- a fuse circuit configured to output the fuse data that is stored in a plurality of fuse regions based on the first boot-up signal and configured to output the fuse data that is stored in one, among the plurality of fuse regions, based on the second boot-up signal;
- and
- a data input/output control circuit configured to control a path through which data is input to and output from a memory, by comparing an internal address with latch data when a predetermined operation is performed,
- wherein an internal command for the predetermined operation is deactivated during a period in which the first boot-up operation is performed in the repair mode.
3 more elements
Dependencies are inferred from the claim text.