Material Characterization of Low-Temperature Silicon Epitaxial Growth on Patterned Oxidized Wafers by ULPCVD From SiH4/SiF4/H2

1990 ◽  
Vol 202 ◽  
Author(s):  
Tri-Rung Yew ◽  
Rafael Reif Reif

ABSTRACTLow temperature silicon selective epitaxial growth on patterned oxidized wafers is becoming crucial to ultra large scale integration (ULSI) technologies. Low temperature processes can reduce dopant redistribution via solid state diffusion so that a sharp transition region can be obtained. This paper presents material characterization of epitaxial films grown on patterned oxidized wafers by ultralow pressure chemical vapor deposition (ULPCVD) from SiH4/SiF4/H2 (≤ 10 mTorr), in which SiF4 was used to explore its capability for selective epitaxial growth. The deposition temperature is 800°C. The effects of the SiF4 addition to SiH4/H2 are discussed. Defects in epitaxial layers resulting from a high composition of the SiF4 during deposition were characterized. Results of in–situ surface cleaning using a SiF4/H2 plasma are also presented.

1988 ◽  
Vol 52 (13) ◽  
pp. 1053-1055 ◽  
Author(s):  
D. Meakin ◽  
M. Stobbs ◽  
J. Stoemenos ◽  
N. A. Economou

2005 ◽  
Vol 245-246 ◽  
pp. 39-50
Author(s):  
H.H. Radamson ◽  
J. Hållstedt

In this paper, the following issues: epitaxial growth, boron incorporation and electrical properties of Si1-x-yGexCy layers grown by reduced pressure chemical vapor deposition (RPCVD) are presented. Furthermore, diffusion of carbon and boron in silicon-based material is also discussed.


1997 ◽  
Vol 495 ◽  
Author(s):  
Xian Lin ◽  
Denis Endisch ◽  
Xiaomeng Chen ◽  
Alain Kaloyeros

ABSTRACTFilms of silicon nitride are widely used in semiconductor technologies for very large scale integration (VLSI), thin film transistor (TFT), and solar cell applications. Current production technologies for silicon nitride use low pressure chemical vapor deposition (LPCVD) at temperatures > 700 °C or plasma enhanced chemical vapor deposition (PECVD) at temperatures below 450 °C. In this report, successful deposition of silicon nitride films by the low temperature thermal atmospheric pressure chemical vapor deposition (APCVD) method is described. Using a novel precursor tetraiodosilane (SiI4), deposition of silicon nitride has been achieved at temperature as low as 400 °C. Data pertaining to the dependence of film properties on deposition temperature are presented, along with a evaluation of the deposition rate, composition, chemical structure, and conformality of the resulting films.


Sign in / Sign up

Export Citation Format

Share Document