An improved method for detection of “hot spots” in microelectronic devices
Abstract
A new method of liquid‑crystal thermography for detecting “hot spots” in microelectronic device crystals has been developed. The method is based on the visual display of a “hot spot” by the local cholesteric phase within the transparent smectic phase of a cholesteric liquid crystal, against the clear background of the topological elements of the device crystal surface. Examples of “hot spot” visualization on samples of crystals of various types of integrated circuits are presented.
Copyright (c) 2008 Popov V. M., Klimenko A. S., Pokanevich A. P.

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