Growth and Characterization of Multilayered Structure of GaAs/Epi-Si/SiO2 /Si Composite

1988 ◽  
Vol 116 ◽  
Author(s):  
C.S. Yang ◽  
A. S. Yue

The monolithic integration of GaAs and Si devices is highly attractive for very high speed LSI and optoelectronic integrated circuits. To accomplish this, the epitaxial growth of GaAs films on Si substrates has been successfully realized. However, in the GaAs/Si structure, the conductive nature of the silicon substrate results in a severe transmission line loss [1,2]. To help solve this problem, we suggest to grow GaAs film on SOI (silicon on insulator) substrate for microwave device application. This GaAs/SOI structure will have low transmission line loss and excellent radiation hardness. In this paper, we present some cross-section SEM and TEM data and discuss the transmission line loss and radiation hardness of this multilayered structure.

Author(s):  
C. O. Jung ◽  
S. J. Krause ◽  
S.R. Wilson

Silicon-on-insulator (SOI) structures have excellent potential for future use in radiation hardened and high speed integrated circuits. For device fabrication in SOI material a high quality superficial Si layer above a buried oxide layer is required. Recently, Celler et al. reported that post-implantation annealing of oxygen implanted SOI at very high temperatures would eliminate virtually all defects and precipiates in the superficial Si layer. In this work we are reporting on the effect of three different post implantation annealing cycles on the structure of oxygen implanted SOI samples which were implanted under the same conditions.


1998 ◽  
Vol 37 (Part 1, No. 1) ◽  
pp. 39-44 ◽  
Author(s):  
Kenzo Maehashi ◽  
Hisao Nakashima ◽  
Frank Bertram ◽  
Peter Veit ◽  
Jürgen Christen

1983 ◽  
Vol 23 ◽  
Author(s):  
John C. C. Fan ◽  
Y. Akasaka ◽  
G. W. Cullen ◽  
J. F. Gibbons ◽  
C. Hill ◽  
...  

There are a number of viable approaches to silicon-on-insulator (SOI) technologies, and the panel session has assembled a number of leaders in the SOI community for their views of “SOI Technologies for Integrated Circuits.” Their viewpoints, shown in tabulated form, were presented for general discussion in the session which was attended by about 150 people. Although SOI technologies are useful for many applications, most of the panelists agreed that the most appropriate near-term applications are for high-speed, high-density integrated circuits. Various SOI technologies, including silicon-on-sapphire (SOS), are currently in the running, but the majority of the panelists felt that for SOI technologies to be widely adopted, SOI must be available as a proven manufactured product within two to three years.


2012 ◽  
Vol 1451 ◽  
pp. 159-168
Author(s):  
Takashi Mizutani ◽  
Shigeru Kishimoto

ABSTRACTMedium scale integrated circuits with 108 CNT-TFTs have been fabricated using CNTs grown by plasma enhanced chemical vapor deposition (PECVD) which has the advantage of preferential growth of CNTs with semiconducting behavior in the FET current–voltage characteristics. High-speed operation with a switching time of 0.51 μs/gate, which is highest in the CNT-TFT integrated circuits to our knowledge, was demonstrated by a 53-stage ring oscillator. Characterization of CNT-TFTs using scanning probe microscopy has also been performed. The island-like structure in the electrical properties of the CNT network was observed even in a high-density CNT network in the subthreshold regime. This was explained by the decrease of the effective number of CNTs which contribute the electrical conduction.


1986 ◽  
Vol 67 ◽  
Author(s):  
M. Abdul Awal ◽  
El Hang Lee ◽  
G. L. Koos ◽  
E. Y. Chan ◽  
G. K. Celler ◽  
...  

ABSTRACTWe report some results on the chemical, structural and electrical characterization of Ge and GaAs films, grown on Si (100) substrates by electron-beam evaporation and MOCVD, respectively. Good quality Ge films have been obtained at 700°C substrate temperature at a growth rate of 5 nm/sec in 5 × 10−7 torr. Similarly, good GaAs films were obtained at 650°C and at 0.3 nm/sec. RBS data for GaAs films (1.1 μm) show Xmin approaching 3.5%, and Ge films (1.5 μm) around 3.6%. Photoluminescence of the same films show peaks around 852 nm with FWHM of 14 meV. Cross-sectional TEM and etching show a near-exponential decrease in defect density away from the Ge/Si interface. Detailed characterization results of the S-R, I-V, C-V, and X-ray studies are also described.


2017 ◽  
Vol 20 (4) ◽  
pp. 196-202
Author(s):  
Kaoru Sugimoto ◽  
Kenichi Kawai ◽  
Hiroyuki Adachi ◽  
Daisuke Mizutani ◽  
Tomoyuki Akahoshi ◽  
...  

Author(s):  
S. J. Krause ◽  
C. O. Jung ◽  
S.R. Wilson

Silicon-on-insulator (SOI) structure by high dose oxygen implantation (SIMOX) has excellent potential for use in radiation hardened and high speed integrated circuits. Device fabrication in SIMOX requires a high quality superficial Si layer above the buried oxide layer. Previously we reported on the effect of heater temperature, background doping, and annealing cycle on precipitate size, density, and location in the superficial Si layer. Precipitates were not eliminated with our processing conditions, but various authors have recently reported that high temperature annealing of SIMOX, from 1250°C to 1405°C, eliminates virtually all precipitates in the superficial Si layer. However, in those studies there were significant differences in implantation energy and dose and also annealing time and temperature. Here we are reporting on the effect of annealing time and temperature on the formation and changes in precipitates.


Author(s):  
Nandish Bharat Thaker ◽  
Rakesh Ashok ◽  
Sarath Manikandan ◽  
Nandakumar Nambath ◽  
Shalabh Gupta

MRS Bulletin ◽  
1998 ◽  
Vol 23 (12) ◽  
pp. 13-15 ◽  
Author(s):  
Jean-Pierre Colinge ◽  
Robert W. Bower

Silicon-on-lnsulator (SOI) technology has been around since the 1960s when so-called silicon on sapphire (SOS) was first introduced. Silicon on sapphire has been used for many years for the fabrication of spaceborne and high-speed integrated circuits. It is still used in the fabrication of radio-frequency circuits.More recent SOI materials involve only silicon and silicon dioxide—the two most common materials used in the fabrication of integrated circuits—as opposed to SOS, which requires the use of an alumina substrate.Silicon-on-insulator technology has been used for a long time in niche applications such as spacecraft electronics and devices operating in a hightemperature or radiative environment. Recently however much attention has been paid to SOI technology because it is extremely suitable for the fabrication of low-voltage integrated circuits. Such circuits are in high demand for all kinds of portable systems, ranging from cellular phones to laptop computers. In August of 1998, IBM, Sharp, and other semiconductor manufacturers announced the development of SOI chips for high-speed computing and telecommunication con-sumer electronics. Most major semiconductor companies are putting considerable effort into SOI-circuit development for mainstream low-power applications.


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