Dual frequency silicon nitride film of low thermal budget for pre-metal dielectric applications in sub-0.25 μm devices

Author(s):  
Yuxiang Wang ◽  
J.H. Lee ◽  
B. Thakur ◽  
J. Huang
2016 ◽  
Vol 18 (18) ◽  
pp. 13033-13044 ◽  
Author(s):  
B. B. Sahu ◽  
Y. Y. Yin ◽  
T. Tsutsumi ◽  
M. Hori ◽  
Jeon G. Han

A correlation study of plasma parameters and film properties and the implication of dual frequency PECVD for industry are proposed.


1995 ◽  
Vol 377 ◽  
Author(s):  
S. S. He ◽  
V. L. Shannon

ABSTRACTPECVD silicon rich (x<4/3) and nitrogen rich (x>4/3) silicon nitride films have been deposited using a silane, ammonia, and nitrogen mixture at 400°C in a dual frequency parallel plate reactor. From FTIR measurements, most of the bonded hydrogen was observed to be present as N-H in the nitrogen rich films and as Si-H in the silicon rich films. In this study, the movement of hydrogen in the various nitride films as a result of Rapid Thermal Annealing (RTA) in N2 for 30 seconds has been investigated. While the intensity of the N-H stretching band was always found to decrease from that measured for the as-deposited film, the intensity of the Si-H stretching band was observed to increase for anneal temperatures up to 650°C. During the anneal process some hydrogen effusion takes place and some of hydrogen changes its bonding to silicon atoms from previous nitrogen atoms in the film. Consistent with the FTIR results, Hydrogen Forward Scattering (HFS), shows that only a small amount of hydrogen effuses from the silicon nitride film as a result of the RTA process below 650°C.


1999 ◽  
Vol 594 ◽  
Author(s):  
T. Y. Zhang ◽  
Y. J. Su ◽  
C. F. Qian ◽  
M. H. Zhao ◽  
L. Q. Chen

AbstractThe present work proposes a novel microbridge testing method to simultaneously evaluate the Young's modulus, residual stress of thin films under small deformation. Theoretic analysis and finite element calculation are conducted on microbridge deformation to provide a closed formula of deflection versus load, considering both substrate deformation and residual stress in the film. Silicon nitride films fabricated by low pressure chemical vapor deposition on silicon substrates are tested to demonstrate the proposed method. The results show that the Young's modulus and residual stress for the annealed silicon nitride film are respectively 202 GPa and 334.9 MPa.


1994 ◽  
Vol 3 (9) ◽  
pp. 682-689 ◽  
Author(s):  
Chen Jun-fang ◽  
Cheng Shao-yu ◽  
Ren Zhao-xing ◽  
Zhang Su-qing ◽  
Ning Zhao-yuan ◽  
...  

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