发明申请
US20050195670A1 Semiconductor memory apparatus and method for operating a semiconductor memory apparatus
失效
用于操作半导体存储装置的半导体存储装置和方法
- 专利标题： Semiconductor memory apparatus and method for operating a semiconductor memory apparatus
- 专利标题（中）： 用于操作半导体存储装置的半导体存储装置和方法
-
申请号： US11063495申请日： 2005-02-22
-
公开(公告)号： US20050195670A1公开(公告)日： 2005-09-08
- 发明人: Jean-Marc Dortu
- 申请人： Jean-Marc Dortu
- 优先权： DE102004008152.2 20040219
- 主分类号： G11C5/14
- IPC分类号： G11C5/14 ; G11C7/00 ; G11C7/08 ; G11C11/4063
摘要：
Semiconductor memory apparatus and methods of operating the same are provided. The apparatus has at least one first sense amplifier for amplifying a voltage level which has been read from a memory cell when the semiconductor memory apparatus is in an active operating mode and at least one second sense amplifier for amplifying a voltage level which has been read from the memory cell when the semiconductor memory apparatus is in a refresh operating mode. The apparatus is designed such that either the first or the second sense amplifier can be placed in electrical contact with the memory cell and the capacitance of the second sense amplifier is lower than the capacitance of the first sense amplifier.