发明名称 |
Low cost mixed memory integration with substantially coplanar gate surfaces |
摘要 |
A semiconductor memory device including at least three of the following cell structures: an NVRAM cell structure, an FERAM cell structure, a DRAM cell structure, and an SRAM cell structure. The cell structures are disposed on the same substrate and preferably have gate surfaces which are substantially coplanar. An NVRAM cell structure. Processes for forming a memory structure that includes NVRAM, FERAM, DRAM, and/or SRAM memory structures on one substrate and processes for forming a new NVRAM cell structure.
|
申请公布号 |
US6141242(A) |
申请公布日期 |
2000.10.31 |
申请号 |
US19990447629 |
申请日期 |
1999.11.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
HSU, LOUIS LU-CHEN;MANDELMAN, JACK A.;ASSADERAGHI, FARIBORZ |
分类号 |
G11C11/00;H01L21/8242;H01L21/8244;H01L21/8247;H01L27/10;H01L27/105;H01L27/108;H01L27/11;H01L27/115;H01L29/788;H01L29/792;(IPC1-7):G11C13/00 |
主分类号 |
G11C11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|