Semiconductor memory device and method for driving the same

A semiconductor memory device includes a delay locked loop (DLL) unit configured to generate a plurality of DLL clocks, each having a different phase according to delay values predefined by a DLL operation; a data output buffering unit configured to output data in response to the DLL clocks; and a s...

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Main Author Na, Kwang-Jin
Format Patent
LanguageEnglish
Published 17.08.2010
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Abstract A semiconductor memory device includes a delay locked loop (DLL) unit configured to generate a plurality of DLL clocks, each having a different phase according to delay values predefined by a DLL operation; a data output buffering unit configured to output data in response to the DLL clocks; and a skew compensating unit disposed between the DLL unit and the data output buffering unit to remove a clock skew occurring when the DLL clocks are transferred to the data output buffering unit.
AbstractList A semiconductor memory device includes a delay locked loop (DLL) unit configured to generate a plurality of DLL clocks, each having a different phase according to delay values predefined by a DLL operation; a data output buffering unit configured to output data in response to the DLL clocks; and a skew compensating unit disposed between the DLL unit and the data output buffering unit to remove a clock skew occurring when the DLL clocks are transferred to the data output buffering unit.
Author Na, Kwang-Jin
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References Lee (6995591) 20060200
Notice of Allowance issued from Korean Intellectual Property Office on Jun. 16, 2009 with an English Translation.
(1020030002131) 20030100
(100832023) 20080500
Korean Office Action, with English Translation, issued in Korean Patent Application No. KR 10-2007-0030772, dated on Mar. 25, 2008.
Lee (6943602) 20050900
Kim (6859404) 20050200
(2003-045183) 20030200
(2005-332548) 20051200
Seo et al. (7038972) 20060500
(2005-251368) 20050900
Kwak (2005/0195663) 20050900
Jung (7103133) 20060900
(10-2005-0041677) 20050500
(10-2004-0078471) 20040900
Kim (6987408) 20060100
(2004-104747) 20040400
Jang et al. (6985401) 20060100
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Snippet A semiconductor memory device includes a delay locked loop (DLL) unit configured to generate a plurality of DLL clocks, each having a different phase according...
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Title Semiconductor memory device and method for driving the same
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