Back to results
US 2026/0074008 A1Published application
Repair verification circuit and semiconductor apparatus including the repair verification circuit
AssigneeSK hynix Inc.
InventorsHyeong Soo JEONG, Byeong Cheol LEE
Life of this patent
Estimating the term…
Abstract
A repair verification circuit includes a repair address storage circuit and a redundancy flag generation circuit. The repair address storage circuit stores at least one repair address and generates a comparison result merge signal by comparing the at least one repair address with an external input address. The redundancy flag generation circuit generates a redundancy flag by latching the comparison result merge signal in response to a first control signal generated according to an active command.
Claims18
A repair verification circuit, comprising:
- a repair address storage circuit configured to store at least one repair address and configured to generate a comparison result merge signal by comparing the at least one repair address with an external input address;
- and
- a redundancy flag generation circuit configured to generate a redundancy flag by latching the comparison result merge signal in response to a first control signal generated according to an active command.
A semiconductor apparatus, comprising:
- a memory core including a plurality of memory cells;
- a repair verification circuit configured to compare an external input address with at least one repair address to generate a comparison result merge signal, configured to latch the comparison result merge signal in accordance with a first control signal generated in response to an active command to generate a redundancy flag, and configured to output the redundancy flag in accordance with a second control signal generated in response to a read command;
- and
- an OTP memory circuit configured to store the at least one repair address corresponding to at least one memory cell determined to be defective among the plurality of memory cells and configured to transmit the at least one stored repair address to the repair verification circuit.
1 more element
Dependencies are inferred from the claim text.