AFM

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AFM

(Atomic Force Microscope) A device used to image materials at the atomic level. AFMs are used to solve processing and materials problems in electronics, telecom, biology and other high-tech industries. Invented by IBM in 1986, it uses a ceramic or semiconductor tip one atom wide positioned at the end of a cantilevered bar. As the tip is moved over the material, it either continously touches or periodically taps the surface and bends as it is repelled or attracted to the structure. A laser picks up the deflections.

In contrast to a scanning tunneling microscope (STM), which sends current to the surface being measured, AFMs can be used to image non-conductive materials. See probe storage, STM, microscopy and nanotechnology.
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References in periodicals archive ?
Non-Arab foreign investment in the Amman Financial Market, for example, was a paltry 4% of total investment in 1995.
It is worth mentioning that all ASE performance indicators for last year are the highest since the Amman Financial Market was established in 1978.
Last year, for example, several funds sought permission to invest $500m in the Amman Financial Market, Jordan's stock exchange.