A NEW MODEL FOR THE DIFFUSION OF ARSENIC IN POLYCRYSTALLINE SILICON

Experimental data are presented for the diffusion of arsenic in polycrystalline silicon (polysilicon) during a 15-min anneal at 900 °C. A new model is used to describe the data, which takes account of the different dopant diffusion rates in grains and in grain boundaries. The model is divided into e...

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Main Authors: Oneill, A, Hill, C, King, J, Please, C
Format: Journal article
Language:English
Published: 1988
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author Oneill, A
Hill, C
King, J
Please, C
author_facet Oneill, A
Hill, C
King, J
Please, C
author_sort Oneill, A
collection OXFORD
description Experimental data are presented for the diffusion of arsenic in polycrystalline silicon (polysilicon) during a 15-min anneal at 900 °C. A new model is used to describe the data, which takes account of the different dopant diffusion rates in grains and in grain boundaries. The model is divided into early and late stages and, in particular, the early stage model identifies grain growth as the major mechanism by which arsenic transfers from the grains to the grain boundaries. In the late stage model, grain growth can be ignored and analytic solutions for the arsenic concentration are derived.
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spelling oxford-uuid:17a4c08d-e6a3-4ae9-9b94-817faf9a3bfb2022-03-26T10:38:34ZA NEW MODEL FOR THE DIFFUSION OF ARSENIC IN POLYCRYSTALLINE SILICONJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:17a4c08d-e6a3-4ae9-9b94-817faf9a3bfbEnglishSymplectic Elements at Oxford1988Oneill, AHill, CKing, JPlease, CExperimental data are presented for the diffusion of arsenic in polycrystalline silicon (polysilicon) during a 15-min anneal at 900 °C. A new model is used to describe the data, which takes account of the different dopant diffusion rates in grains and in grain boundaries. The model is divided into early and late stages and, in particular, the early stage model identifies grain growth as the major mechanism by which arsenic transfers from the grains to the grain boundaries. In the late stage model, grain growth can be ignored and analytic solutions for the arsenic concentration are derived.
spellingShingle Oneill, A
Hill, C
King, J
Please, C
A NEW MODEL FOR THE DIFFUSION OF ARSENIC IN POLYCRYSTALLINE SILICON
title A NEW MODEL FOR THE DIFFUSION OF ARSENIC IN POLYCRYSTALLINE SILICON
title_full A NEW MODEL FOR THE DIFFUSION OF ARSENIC IN POLYCRYSTALLINE SILICON
title_fullStr A NEW MODEL FOR THE DIFFUSION OF ARSENIC IN POLYCRYSTALLINE SILICON
title_full_unstemmed A NEW MODEL FOR THE DIFFUSION OF ARSENIC IN POLYCRYSTALLINE SILICON
title_short A NEW MODEL FOR THE DIFFUSION OF ARSENIC IN POLYCRYSTALLINE SILICON
title_sort new model for the diffusion of arsenic in polycrystalline silicon
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