Invention Grant
US07659211B2 Method and apparatus for fabricating a memory device with a dielectric etch stop layer
有权
用于制造具有介电蚀刻停止层的存储器件的方法和装置
- Patent Title: Method and apparatus for fabricating a memory device with a dielectric etch stop layer
- Patent Title (中): 用于制造具有介电蚀刻停止层的存储器件的方法和装置
-
Application No.: US11495869Application Date: 2006-07-28
-
Publication No.: US07659211B2Publication Date: 2010-02-09
- Inventor: H. Montgomery Manning
- Applicant: H. Montgomery Manning
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Fletcher Yoder
- Main IPC: H01L21/302
- IPC: H01L21/302

Abstract:
The present technique relates to a method and apparatus to provide a dielectric etch stop layer that prevents shorts for a buried digit layer as an interconnect. In a memory device, such as DRAM or SRAM, various layers are deposited to form structures, such as PMOS gates, NMOS gates, memory cells, P+ active areas, and N+ active areas. These structures are fabricated through the use of multiple masking processes, which may cause shorts when a buried digit layer is deposited if the masking processes are misaligned. Accordingly, a dielectric etch stop layer, such as aluminum oxide Al2O3 or silicon carbide SiC, may be utilized in the array to prevent shorts between the wordlines, active areas, and the buried digit layer when the contacts are misaligned.
Public/Granted literature
- US20060264057A1 Method and apparatus for fabricating a memory device with a dielectric etch stop layer Public/Granted day:2006-11-23
Information query
IPC分类: