发明名称 Logic non-volatile memory cell with improved data retention ability
摘要 A memory cell includes a semiconductor substrate; and a first, a second, and a third transistor. The first transistor includes a first dielectric over the semiconductor substrate; and a first floating gate over the first dielectric. The second transistor is electrically coupled to the first transistor and includes a second dielectric over the semiconductor substrate; and a second floating gate over the second dielectric. The first and the second floating gates are electrically disconnected. The memory cell further includes a first capacitor; a second capacitor electrically coupled to the first capacitor; a third capacitor; a fourth capacitor electrically coupled to the third capacitor, wherein each of the first, the second, the third and the fourth capacitors includes the semiconductor substrate as one of the capacitor plates. The third transistor is a selector of the memory cell and is electrically coupled to the first and the second transistors.
申请公布号 US7968926(B2) 申请公布日期 2011.06.28
申请号 US20080022943 申请日期 2008.01.30
申请人 TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD. 发明人 HUANG CHIN-YI;HSU TE-HSUN;HUANG CHENG HSIANG
分类号 H01L27/112 主分类号 H01L27/112
代理机构 代理人
主权项
地址