Download or read book Epitaxial Growth and Optoelectronic Characterization of Cubic Silicon Carbide Deposited Using Chemical Vapor Deposition on Porous Silicon written by Frederick Paul Vaccaro and published by . This book was released on 1999 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Cubic silicon carbide is a promising material for applications in high-power, high-frequency, high-temperature, and high-speed electronic devices. Fourier Transform Infrared Spectroscopy (FTIR), Secondary Ion Mass Spectrometry (SIMS), X-Ray Diffraction (XRD) and Atomic Force Microscopy (AFM) evaluations performed on thin films grown heteroepitaxially on porous (i.e. anodized) silicon using a new chemical vapor deposition (CVD) method employing trimethylsilane confirmed that the thin films were stoichiometric, cubic silicon carbide (3C-SiC). Conclusions were drawn on the basis of comparisons with published standards as well as with results generated on reference materials. SIMS profiles revealed the growth rates at approximately 1150̊C to vary from 2.1 to 4.0 Å/min. depending upon the slight variations in the CVD process trimethylsilane gas pressure. AFM evaluations revealed that the deposition mode at short deposition times was homo-oriented island nucleation and growth but that the 3C-SiC thin films evolved into continuous terraced layers at longer deposition times. Heterojunction (pn) junction diodes, fabricated from CVD and chemical vapor converted (CVC) porous silicon specimens, displayed world record breakdown voltages as high as 140 volts and 150 volts respectively. Historically, heterojunction (pn) junction diodes fabricated from 3C-SiC thin film specimens deposited on non-anodized displayed breakdown voltages below 10 to 20 volts.