About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
IEEE International SOI Conference 1993
Conference paper
Photoluminescence and photoreflectance scanning of silicon-on-insulator materials
Abstract
Proven to be useful for examining bonded SOI wafers are the photoluminescence (PL) and photoreflectance (PR) scanning. The strength in the bonded SOI approach lies in its flexibility in both the BOX and Si thicknesses and in the expected low defect densities in the Si layer. Problem areas include historically larger thickness variations and the difficult problem of 'voids' or bubbles between the two wafers due to particles present during the bonding.