Instrumentation of electron beam induced current and absorbed current imaging for a scanning electron microscope
Abstract
The design and development of electron beam induced current (EBIC) and sample current characterization are made possible through interfacing various laboratory equipments such as a picoammeter, current preamplifier, PCI-board with analogdigital inputs and a desktop personal computer (PC). Although EBIC imaging is already a widely used characterization technique in the semiconductor industry, we present the technique which is easily made by an academic institution. Results show successful acquisition of secondary electron (SE), EBIC and absorbed current images for a GaAs-based PIN semiconductor and a Silicon photodiode.