Issue
J. Phys. IV France
Volume 04, Number C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
Page(s) C7-171 - C7-174
DOI https://doi.org/10.1051/jp4:1994741
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique

J. Phys. IV France 04 (1994) C7-171-C7-174

DOI: 10.1051/jp4:1994741

A study of a new system for measuring semiconductor using laser stimulated scattering microscope

T. Tanaka, A. Harata and T. Sawada

Department of Industrial Chemistry, Faculty of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan


Abstract
At the initial part of the transient reflecting grating signal of silicon, a signal attributed to photoexcited carrier was observed apart from thermal and acoustic effects. From theoretical approach, we found that the intensity of the carrier signal was related to the Auger recombination rate. With this signal, we obtained both images representing picosecond-photoexcited carrier concentration and Auger recombination rate of a helium-implanted crystalline silicon (dose, 1015 atoms/cm2).



© EDP Sciences 1994