Original Articles |
|
|
|
|
Thermal Stress Analysis of Floating-Gate Tunneling Oxide Electrically Erasable Programmable Read Only Memory During Manufacturing Process |
ZONG Xiang-fu1;WANG Xu1;WENG Yu-min1;YAN Ren-jin1;TANG Guo-an2;ZHANG Zhao-qiang1 |
1Institute of Materials Science, 2Department of Mechanics, Fudan University, Shanghai 200433 |
|
Cite this article: |
ZONG Xiang-fu, WANG Xu, WENG Yu-min et al 1998 Chin. Phys. Lett. 15 767-769 |
|
|
Abstract In this study, finite element modeling was used to evaluate the residual thermal stress in floating-gate tunneling oxide electrically erasable programmable read only memory (FLOTOX E2PROMs) manufacturing process. Special attention is paid to the tunnel oxide region, in which high field electron injection is the basis to E2PROMs operation. Calculated results show the presence of large stresses and stress gradients at the fringe: This may contribute to the invalidation of E2PROMs. A possible failure mechanism of E2PROM related to residual thermal stress-induced leakage is proposed.
|
Keywords:
81.40.Lm
62.20.Fe
61.20.Ja
|
|
Published: 01 October 1998
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|