Ion implantation into gallium arsenide

R. Anholt, P. Balasingam, S. Y. Chou, T. W. Sigmon, M. Deal

Research output: Contribution to journalArticlepeer-review

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Secondary-ion-mass-spectrometry studies of the implantation profiles of 20- to 400-keV Si, Se, and Be ions into GaAs are reported. The measured profiles are fit with Pearson-IV distributions whose moments are fit to functions of the ion energy to obtain simple, widely applicable analytical formulas. Also, profiles are measured for varying wafer tilt and rotation angles to the ion beam, and for varying dislocation densities and doses. For implantation through dielectric caps, the profiles in the GaAs can be simulated using shifted, bare-wafer Pearson-IV distributions for Be, or mixtures of shifted Pearson-IV and Gaussians for Si and Se. Also, knock-on distributions of Si and O atoms resulting from implanting through SiO2 caps were measured.

Original languageEnglish (US)
Pages (from-to)3429-3438
Number of pages10
JournalJournal of Applied Physics
Issue number7
StatePublished - 1988
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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