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US 12,592,265 B2Granted
Semiconductor device and training method of the semiconductor device
AssigneeSK hynix Inc.
InventorChoung Ki Song
Life of this patent
Estimating the term…
Abstract
A semiconductor device including an input circuit including a buffer configured to buffer an external signal that is received from a pad, a variable delay circuit configured to delay a signal that is output by the buffer in response to a plurality of delay setting signals, and a latch configured to output the output of the variable delay circuit as an internal signal by latching the output in response to a clock signal, and a setting circuit configured to store the plurality of delay setting signals.
Claims3
A training method of a semiconductor device comprising:
- performing a coarse training operation for a plurality of memory devices;
- and
- performing a fine training operation per pad which is included in each of the plurality of memory devices,
- wherein the performing of the coarse training operation comprises adjusting a reference voltage level for determining external signals based on windows of the external signals that are received by the plurality of memory devices.
1 more element
Dependencies are inferred from the claim text.