Back to results
US 8,947,955 B2Granted
Semiconductor memory, memory system, and operation method thereof
AssigneeSK hynix Inc.
InventorsHee-Jin Byun, Ki-Chang Kwean
Life of this patent
Estimating the term…
Abstract
A memory system includes a semiconductor memory including a storage unit configured to store parameter information in response to a test mode signal and to output the stored parameter information in response to a parameter request signal, and a memory controller configured to provide the parameter request signal to the semiconductor memory and receive the parameter information from the semiconductor memory device.
Claims18
A memory system, comprising:
- a semiconductor memory including a storage unit configured to store a parameter information in response to a test mode signal and to output the stored parameter information in response to a parameter request signal;
- and
- a memory controller configured to provide the parameter request signal to the semiconductor memory and receive the parameter information from the semiconductor memory device,
- wherein the parameter information corresponds to a skew between the data strobe signal and the system clock.
1 more element
A semiconductor memory, comprising:
- a delay locked loop configured to generate a data strobe signal based on a system clock;
- and
- a storage unit configured to store a parameter information in a test operation and to output the stored parameter information in a normal operation,
- wherein the parameter information corresponds to a skew between the data strobe signal and the system clock.
1 more element
An operation method of a memory controller, the method comprising:
- requesting a parameter information to a semiconductor memory, wherein the parameter information is stored in a test operation for the semiconductor memory;
- receiving the parameter information output from the semiconductor memory;
- and
- setting a parameter value for the semiconductor memory based on the parameter information,
- wherein the parameter information corresponds to a skew between the data strobe signal and the system clock.
2 more elements
Dependencies are inferred from the claim text.