MEE (Materials Engineering for Electronics) - Aim, Tools and Perspectives
New approach to solidification processes based on a combination of mechanical vibrations and on specially introduced magneto-hydrodynamic forces is illustrated on GaSb grown from Ga and Sb solutions. Process is accelerated approximately 20-times compared with "classical" Travelling heater...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
CTU Central Library
2000-01-01
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| Series: | Acta Polytechnica |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/74 |
| Summary: | New approach to solidification processes based on a combination of mechanical vibrations and on specially introduced magneto-hydrodynamic forces is illustrated on GaSb grown from Ga and Sb solutions. Process is accelerated approximately 20-times compared with "classical" Travelling heater method - solution growth. Up to now, though ingots possess mosaic texture, their transport properties: μ<sub>H</sub> = 3.800 cm<sup>2</sup>/Vs, p = 1.7 . 10<sup>17</sup> at 77 K are slightly better than published results. A schematic arrangement of the growth apparatus for a modified travelling heater method, and of the growth conditions are given. A simple calculation of levitation phenomenon being generated by a controlled MHD forces are presented. There is brought a brief analyses of this phenomenon for an application on the above mentioned processes. Some experimentation attempts are added. Possible perspectives inhering in this peculiar process can also inspire young investigators/scientists.<br /> |
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| ISSN: | 1210-2709 1805-2363 |