학술논문

Advanced STI patterning for 70 nm DRAM technology and beyond
Document Type
Conference
Source
2004 IEEE/SEMI Advanced Semiconductor Manufacturing Conference and Workshop (IEEE Cat. No.04CH37530) Advanced semiconductor manufacturing Advanced Semiconductor Manufacturing, 2004. ASMC '04. IEEE Conference and Workshop. :84-88 2004
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Random access memory
Etching
Optical films
Silicon
Plasma chemistry
Helium
Stress
Polymer films
Lithography
Plasma applications
Language
Abstract
This paper presents the results on the patterning of shallow trench isolation for the 70 nm DRAM technology node on 300 mm wafers. Using a new triple hard mask approach incorporating a carbon film patterns with 70 nm CD and STI depth of about 250 nm could be achieved.