Accession Number : AD0745945

Title :   Determination of Diffusion Coefficients in Silicon and Accepted Values.

Descriptive Note : Rept. for Apr-Aug 70,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Millea,Michael F.

Report Date : 15 APR 1972

Pagination or Media Count : 34

Abstract : The major emphasis of this review is directed towards a critical evaluation of experimentally determined diffusion coefficients of substitutional elements in silicon. A generalized definition of atomic migration is developed using the Onsager-Fuoss phenomenological approach and the conditions which must be satisfied when using Fick's first and second laws discussed. Various diffusion mechanisms are considered to illustrate possible interactions between crystal properties and atomic migration with special attention given to the effect of heavy doping and induced space-charge regions on diffusion. The effect of short-range solute-enhanced migration is also considered in discussing the effect of heavy doping on self-diffusion in silicon. The techniques commonly employed to determine atomic movement in silicon are presented. (Author)

Descriptors :   (*SILICON, DIFFUSIVITY), (*SEMICONDUCTORS, DOPING), DIFFUSION, TIN, PHOSPHORUS, ARSENIC, ANTIMONY, INDIUM

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE