DRAM Technology
DRAM Technology
DRAM Technology
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History of <strong>DRAM</strong><br />
Dr. Robert H. Dennard,<br />
IBM Fellow<br />
created the one-transistor<br />
<strong>DRAM</strong> in 1966<br />
World 1’st Available <strong>DRAM</strong> Chip<br />
Intel 1103<br />
1966<br />
. 1 Kb<br />
. 3 Transistors<br />
1’st <strong>DRAM</strong> Chip with 1-Tr. & 1-Cap.<br />
MK4096<br />
[Source : S.Y. Cha(Hynix), VLSI Short Course 2011]<br />
1970<br />
. 4 Kb<br />
. 1-Tr. & 1-Cap.<br />
. Address multiplexing<br />
. VDD : 11.4~12.6V<br />
. Access time of 300ns<br />
. Refresh time of 2ms<br />
<strong>DRAM</strong> <strong>Technology</strong> SK hynix Lecture for POSTECH<br />
Page 9<br />
1973
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