Zobrazeno 1 - 10
of 28
pro vyhledávání: '"R. J. Roedel"'
Publikováno v:
IEEE Transactions on Semiconductor Manufacturing. 8:79-83
We report a procedure for fabricating Ga/sub 1-x/Al/sub x/As-GaAs heterojunction bipolar transistors with a single Al-Ge-Ni metallization step for rapid material analysis. Al-Ge-Ni produces an excellent ohmic contact to both n- and p-type GaAs, and e
Autor:
H. Cutlerywala, R. J. Roedel
Publikováno v:
Journal of The Electrochemical Society. 141:1639-1643
Experiments were performed to diffuse zinc into GaAs through anodic oxide layers of varying thickness and density. Using electrochemical profiling to determine both the electrically active zinc concentration and the diffusion depth with high resoluti
Publikováno v:
Journal of The Electrochemical Society. 140:1450-1453
We report the results of preliminary investigations into the suitability of the metallization system, aluminum-tin-nickel, as an ohmic contact to both p-type and n-type GaAs. We have found that the Al-Sn-Ni contact is similar to Al-Ge-Ni in that it m
Publikováno v:
Journal of The Electrochemical Society. 138:3120-3125
Autor:
J. Wong, R. J. Roedel
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 9:2258-2263
A model based on the known defect structure of Hg1−xCdxTe has been developed for explaining indium diffusion in this semiconductor. Based on a charged‐vacancy mechanism, the model qualitatively predicts the correct trends for diffused samples whi
Publikováno v:
Journal of Electronic Materials. 19:1257-1263
Low temperature, non-alloyed Au-Ge contact formation ton-GaAs is a multi-step pro-cess. During the first 5 min of annealing at 320° C the Au and Ge segregate into regions a few microns in size and extend over the entire thickness of the metal layer
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 8:1143-1146
The effectiveness of indium tin oxide (ITO) and silicon dioxide as encapsulants for mercury cadmium telluride (MCT) has been investigated. Indium tin oxide and silicon dioxide of various thicknesses were sputtered onto samples of MCT. Samples were th
Publikováno v:
Scanning. 12:81-85
Extension in wavelength detection of cathodoluminescence (CL) toward the infrared is an area attracting interest regarding its development potential. This article describes our progress in CL characterization of Hg1−xCdxTe epilayers intended for op
Autor:
R. J. Roedel, H. H. Erkaya
Publikováno v:
IEEE Proceedings of the SOUTHEASTCON '91.
Planar GaAlAs/GaAs heterojunction bipolar transistors have been fabricated by using zinc diffusion to contact the p-type base and Al-Ge-Ni metallization for all ohmic contacts. The transistor structures were prepared by MOCVD (metal-organic chemical
Publikováno v:
Journal of The Electrochemical Society. 132:2214-2218
Essai d'obtention de jonctions-p par une technique a basse temperature en utilisant un systeme de diffusion pour «tube de fuite» en utilisant SnS comme source de Sn a diffuser dans un support de GaAs de type p. Forte diffusion de Sn dans GaAs, sans