Epitaxial growth of CoSi2on (111)Si inside miniature‐size oxide openings by rapid thermal annealing

1991 ◽  
Vol 69 (8) ◽  
pp. 4282-4285 ◽  
Author(s):  
H. F. Hsu ◽  
L. J. Chen ◽  
J. J. Chu
1997 ◽  
Vol 36 (Part 1, No. 10) ◽  
pp. 6475-6480 ◽  
Author(s):  
Li-Ming Wang ◽  
Shinn-Tyan Wu

1999 ◽  
Vol 564 ◽  
Author(s):  
Hwa Sung Rhee ◽  
Dong Kyun Sohn ◽  
Byung Tae Ahn

AbstractA uniform epitaxial CoSi2 layer was grown on (100) Si substrate by rapid thermal annealing at 800°C in N2 ambient without capping layers from an amorphous cobalt-carbon film. The amorphous cobalt-carbon film was deposited on Si substrate by the pyrolysis of cyclopentadienyl dicarbonyl cobalt. Co(η5-C5H5)(CO)2. at 350°C. The leakage current measured on the junction, fabricated with the epitaxial CoSi2 layer and annealed at 1000°C for 30 s. was as low as that of the as-fabricated junction without silicide. indicating that epitaxial (100) CoSi2 is thermally stable at temperatures even above 1000°C and has a potential applicability to the salicide process in sub-half micron devices.


1986 ◽  
Vol 74 ◽  
Author(s):  
H. C. Cheng ◽  
I. C. Wu ◽  
L. J. Chen

AbstractThe epitaxial growth of near noble silicides, including CoSi2, NiSi2, FeSi2, Pd2 Si, and PtSi on (111)Si, by rapid thermal annealing was studied by transmission electron microscopy. Single-crystalline CoSi2 was formed on (111)Si in the solid phase epitaxy regime by a non-ultra-high vacuum method. The effect on gas ambient was found to be of critical importance on the growth of single-crystal CoSi2 on (111)Si. The best NiSi2, FeSi2, Pd2 Si, and PtSi epitaxy grown on (111)Si by rapid thermal annealing were found to be of comparable quality to those grown by conventional furnace annealing.


1989 ◽  
Vol 146 ◽  
Author(s):  
H.F. Hsu ◽  
J.J. Chu ◽  
L.J. Chen

ABSTRACTEpitaxial growth of NiSi2 and CoSi2 on silicon inside miniature oxide openings by rapid thermal annealing has been studied. Effects of lateral confinement, including two-dimensional and linear oxide openings, as well as deposition methods on the growth of NiSi2 and CoSi2 on silicon were investigated. Vast difference found in the behaviors of the growth of epitaxy inside oxide openings between samples with the metal films deposited by electron beam evaporation and sputtering are attributed to the differences in the geometrical configuration of the films and stress levels as well as surface cleanliness.


1995 ◽  
Vol 402 ◽  
Author(s):  
Jeong Soo Byun ◽  
Jeong Min Seon ◽  
Jin Won Park ◽  
Hyunsang Hwang ◽  
Jae Jeong Kim-

AbstractSelf-aligned silicide (salicide) formation of epitaxial CoSi2, using a Co/Ti bilayer, on linear oxide (SiO2) patterned (100)Si substrate has been investigated. Rapid thermal annealing (RTA) at 550°C resulted in the lateral encroachment of silicide in the Si under the edge of the oxide. After RTA at 900°C, even though an epitaxial CoSi2 layer was formed on the Si substrate, defects such as lateral encroachment and voids were generated under the edge of the oxide. It was found that such defects lead to device failure due to the deterioration of the gate oxide and the shallow junction.


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