A CRITERION FOR THE SUPPRESSION OF PLASTIC-DEFORMATION IN LASER-ASSISTED CHEMICAL VAPOR-DEPOSITION OF GAAS

被引:8
作者
HUSSIEN, SA [1 ]
FAHMY, AA [1 ]
ELMASRY, NA [1 ]
BEDAIR, SM [1 ]
机构
[1] N CAROLINA STATE UNIV,DEPT ELECT ENGN,RALEIGH,NC 27695
关键词
D O I
10.1063/1.345033
中图分类号
O59 [应用物理学];
学科分类号
摘要
Laser-induced chemical vapor deposition (LCVD) of GaAs allows deposited film to trace the path of the laser beam, thus making it attractive for several applications. However the localized thermal expansion resulting from the laser-induced temperature rise has to be elastically accomodated in order to prevent lattice defects in the LCVD film. We report on the growth conditions that can be allowed without the occurrence of plastic deformation in the epitaxial films. A model is presented to explain the thermal expansion induced distortion during the deposition process and is compared with experimental results.
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页码:3853 / 3857
页数:5
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