On The Resistivity Increase of Heavily Doped n-Type Si by Rapid Thermal Processing

2013 ◽  
Vol 52 (1) ◽  
pp. 683-689 ◽  
Author(s):  
X. Zhang ◽  
X. Ma ◽  
C. Gao ◽  
T. Xu ◽  
J. Zhao ◽  
...  
1998 ◽  
Vol 525 ◽  
Author(s):  
A. R. Abramson ◽  
H. Tadal ◽  
P. Nieva ◽  
P. Zavracky ◽  
I. N. Miaoulis ◽  
...  

ABSTRACTThe radiative properties of a silicon wafer undergoing Rapid Thermal Processing (RTP) are contingent upon the doping level of the silicon substrate and film structure on the wafer, and fluctuate drastically with temperature and wavelength. For a lightly doped substrate, partial transparency effects must be considered that significantly affect absorption characteristics. Band gap, free carrier, and lattice absorption are the dominant absorption mechanisms and either individually or in concert have considerable effect on the overall absorption coefficient of the silicon wafer. At high doping levels, partial transparency effects dissipate, and the substrate may be considered optically thick. A numerical model has been developed to examine partial transparency effects, and to compare lightly doped (partially transparent) and heavily doped (opaque) silicon wafers with a multilayer film structure during RTP.


1999 ◽  
Vol 14 (6) ◽  
pp. 2402-2410 ◽  
Author(s):  
A. R. Abramson ◽  
P. Nieva ◽  
H. Tada ◽  
P. Zavracky ◽  
I. N. Miaoulis ◽  
...  

A numerical model has been developed to examine the temperature history of a multilayer wafer undergoing rapid thermal processing (RTP) for various doping densities. Partial transparency and thin film interference effects are considered. Doping levels from ∼1015 to ∼1018 cm−3 are examined. Numerical temperature predictions of the lightly doped wafer are compared with experimental measurements. Heating rates for the lightly doped wafer fluctuate due to partial transparency effects and reach a maximum of ∼50 °C/s. The heavily doped wafer sees a maximum heating rate of ∼100 °C/s. Because the wafers are opaque above 700 °C regardless of their level of doping, all wafers reach steady state at ∼845 °C.


2019 ◽  
Vol 8 (1) ◽  
pp. P35-P40 ◽  
Author(s):  
Haruo Sudo ◽  
Kozo Nakamura ◽  
Susumu Maeda ◽  
Hideyuki Okamura ◽  
Koji Izunome ◽  
...  

1994 ◽  
Vol 141 (11) ◽  
pp. 3200-3209 ◽  
Author(s):  
Charles D. Schaper ◽  
Mehrdad M. Moslehi ◽  
Krishna C. Saraswat ◽  
Thomas Kailath

1990 ◽  
Vol 29 (Part 2, No. 1) ◽  
pp. L137-L140 ◽  
Author(s):  
Hisashi Fukuda ◽  
Akira Uchiyama ◽  
Takahisa Hayashi ◽  
Toshiyuki Iwabuchi ◽  
Seigo Ohno

1987 ◽  
Vol 92 ◽  
Author(s):  
A. Usami ◽  
Y. Tokuda ◽  
H. Shiraki ◽  
H. Ueda ◽  
T. Wada ◽  
...  

ABSTRACTRapid thermal processing using halogen lamps was applied to the diffusion of Zn into GaAs0.6 P0.4:Te from Zn-doped oxide films. The Zn diffusion coefficient of the rapid thermal diffused (RTD) samples at 800°C for 6 s was about two orders of magnitude higher than that of the conventional furnace diffused samples at 800°C for 60 min. The enhanced diffusion of Zn by RTD may be ascribed to the stress field due to the difference in the thermal expansion coefficient between the doped oxide films and GaAs0.6P0.4 materials, and due to the temperature gradient in GaAs0.6P0 4 materials. The Zn diffusion coefficient at Zn concentration of 1.0 × l018 cm−3 was 3.6 × 10−11, 3.1 × 10−11 and 5.0 × 10−12 cm2 /s for the RTD samples at 950°C for 6 s from Zn-, (Zn,Ga)- and (Zn,P)-doped oxide films, respectively. This suggests that Zn diffusibility was controlled by the P in the doped oxide films.


2000 ◽  
Vol 361-362 ◽  
pp. 454-457 ◽  
Author(s):  
O. Schenker ◽  
M. Klenk ◽  
E. Bucher

Sign in / Sign up

Export Citation Format

Share Document