Microwave enhanced ion-cut silicon layer transfer

Thompson, D. C.; Alford, T. L.; Mayer, J. W.; Höchbauer, T.; Lee, J. K.; Nastasi, M.; Lau, S. S.; Theodore, N. David; Chu, Paul K.
June 2007
Journal of Applied Physics;6/1/2007, Vol. 101 Issue 11, p114915
Academic Journal
Microwave heating has been used to decrease the time required for exfoliation of thin single-crystalline silicon layers onto insulator substrates using ion-cut processing. Samples exfoliated in a 2.45 GHz, 1300 W cavity applicator microwave system saw a decrease in incubation times as compared to conventional anneal processes. Rutherford backscattering spectrometry, cross sectional scanning electron microscopy, cross sectional transmission electron microscopy, and selective aperture electron diffraction were used to determine the transferred layer thickness and crystalline quality. The surface quality was determined by atomic force microscopy. Hall measurements were used to determine electrical properties as a function of radiation repair anneal times. Results of physical and electrical characterizations demonstrate that the end products of microwave enhanced ion-cut processing do not appreciably differ from those using more traditional means of exfoliation.


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