Invention Grant
- Patent Title: Semiconductor memory device including ferroelectric capacitor
- Patent Title (中): 半导体存储器件包括铁电电容器
-
Application No.: US12721245Application Date: 2010-03-10
-
Publication No.: US08482044B2Publication Date: 2013-07-09
- Inventor: Takeshi Hamamoto
- Applicant: Takeshi Hamamoto
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: JP2009-213309 20090915
- Main IPC: H01L21/02
- IPC: H01L21/02

Abstract:
An aspect of the present disclosure, there is provided semiconductor memory device including a ferroelectric capacitor and a field effect transistor as a memory cell, the ferroelectric capacitor including a lower electrode connected to one of the pair of the impurity diffusion layers, a bit line formed below the lower electrode, wherein each of the memory cells shares the bit line contact with an adjacent memory cell at one side in the first direction to connect to the bit line, and three of the word lines are formed between the bit line contacts in the first direction.
Public/Granted literature
- US20110062504A1 SEMICONDUCTOR MEMORY DEVICE INCLUDING FERROELECTRIC CAPACITOR Public/Granted day:2011-03-17
Information query
IPC分类: