UNSPECIFIED (1994) CHARACTERIZATION OF SHARP INTERFACES AND DELTA-DOPED LAYERS IN SEMICONDUCTORS USING SECONDARY-ION MASS-SPECTROMETRY. ANALYTICA CHIMICA ACTA, 297 (1-2). pp. 253-275. ISSN 0003-2670

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Abstract

Methods for the quantitative analysis of very thin (delta) layers and sharp interfaces in semiconductors, differentiating between features close to or consisting of changes in matrix composition, and dilute features are reviewed. Although it is shown that no method currently exists for accurate quantification in the former case, a number of experimental techniques for obtaining the best estimate of the true concentration profile are described, in particular the use of XCs(+) secondary ions. For dilute features, it is shown that deconvolution of the chemical profile using a correctly defined response function gives complete quantification, and the formal framework of the method is given. Depth resolution, and the difficulties inherent in defining and measuring consistent parameters, related to particular mechanisms are discussed within this context.

Item Type:	Journal Item
Subjects:	Q Science > QD Chemistry
Journal or Publication Title:	ANALYTICA CHIMICA ACTA
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0003-2670
Date:	31 October 1994
Volume:	297
Number:	1-2
Number of Pages:	23
Page Range:	pp. 253-275
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/20217

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