发明申请
US20060071255A1 Non-destructive read ferroelectric memory cell, array and integrated circuit device
审中-公开
非破坏性读铁电存储单元,阵列和集成电路器件
- 专利标题: Non-destructive read ferroelectric memory cell, array and integrated circuit device
- 专利标题(中): 非破坏性读铁电存储单元,阵列和集成电路器件
-
申请号: US10949778申请日: 2004-09-24
-
公开(公告)号: US20060071255A1公开(公告)日: 2006-04-06
- 发明人: Bomy Chen , Dana Lee , June Han
- 申请人: Bomy Chen , Dana Lee , June Han
- 主分类号: H01L29/94
- IPC分类号: H01L29/94
摘要:
A ferroelectric memory cell has a semiconductor substrate of a first conductivity type having a first region and a second region with each being of a second conductivity type, with a channel region therebetween. The first region and the second region are aligned in a first direction. A gate dielectric is over at least a portion of the channel region. A gate is over the gate dielectric, with the gate extending in a direction transverse to the first direction termination at a termination point not overlapping the first region, the second region and the channel region. A ferroelectric capacitor is at the termination point. The ferroelectric capacitor has a first end and a second end with the first end connected to the gate. The ferroelectric memory cell has three terminals: the first region, the second region, and the second end. In another embodiment, an insulator is over at least a portion of the first region. The gate has one end over the gate dielectric and extends over the insulator terminating at a termination point. A ferroelectric capacitor is connected to the termination point, which lies over a portion of the first region.
信息查询
IPC分类: