Effect of rapid thermal plus conventional annealing on the microstructure of oxygen implanted SOI material

Stephen Krause, B. L. Chen, M. K. El-Ghor

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Rapid thermal annealing (RTA) plus conventional annealing has been used to examine heating rate effects on microstructure for higher temperature implanted SIMOX (separation by implanted oxygen). Material used for this study was a (100) wafer of SIMOX material that was implanted at 200 keV to a dose of 1.8 × 1018 at 620°C. It was rapidly thermal annealed in a lamp annealer for 1 min at 1320°C. The heating rate was about 100°C s-1. A portion of this sample was then conventionally annealed in a tube furnace for 5 h at 1320°C in an atmosphere of argon plus 1/2% oxygen. The heating rate was 1°C s-1. A TEM (transmission electron microscope) image of the RTA + CA sample is shown. There is a dramatic difference in this sample compared to one which has only been conventionally annealed. Defects are seen in the top Si layer and plan view images give a density of 109 cm-2. This is three orders of magnitude greater than a typical CA sample. These defects were first formed during the RTA and were retained during the CA step. This indicates that the high rate of heating in the RTA step can increase the defect density.

Original languageEnglish (US)
Title of host publication1991 IEEE International SOI Conference Proceedings
PublisherPubl by IEEE
Number of pages2
ISBN (Print)0780301846
StatePublished - Jan 1 1992
Event1991 IEEE International SOI Conference - Vail Valley, CO, USA
Duration: Oct 1 1991Oct 3 1991

Publication series

Name1991 IEEE International SOI Conference Proceedings


Other1991 IEEE International SOI Conference
CityVail Valley, CO, USA

ASJC Scopus subject areas

  • Engineering(all)


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