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.
References in periodicals archive ?
Park's AFM provides highest data accuracy at nanoscale resolution, superior productivity, and lowest operating cost thanks to its unique technology and innovative engineering.
In terms of genres, Multicom's Darrin Holender commented that at AFM, teen-family movies were in demand, an assessment that was seconded by Joker Films' Brown, who added that family-teen movies work well in most territories.
Showcasing another capability of the modified AFM tip, the researchers used voltage pulses to eject droplets of DNA molecules from the spike onto a silicon substrate.
And for the first time, AFM is opening about 70 of its screenings to the public at the AMC Santa Monica, offering a $95 nine-day pass ($45 for students and trade members).
The AFM process succeeded where nothing other than a very laborious hand-deburring operation of questionable repeatability had been able to do the job.
We expect AFM 2013 to be a very exciting turning point for the Movies division of Breakthrough Entertainment," said Marina Cordoni, VP of Movies.
Instead of a cantilever, the business end of the new-style AFM is a conventional tip mounted at the center of a circular membrane roughly the size of the period at the end of this sentence.
The AFM lists a host of "reforms" that are needed in American society, including tax cuts for "married families with children," mandatory "counseling directed at marital reconciliation for wives and husbands considering divorce" and the elimination of "all federal and state welfare policies which penalize welfare recipients who are married.
3] operates in a vacuum environment, and because the space available for the probe is very limited, it was impractical to use a typical, commercial AFM probe that senses the force by measuring the deflection of a cantilever using an optical-beam, lever arm.
Veeco's entry into the AFM market took off with its acquisition of Digital Instruments, the leading AFM manufacturer, in 1998.
About 40% of current atomic force microscopy (AFM) research is performed in liquids, making liquid-based AFM a rapidly growing and important tool for the study of biological materials.
Potato Board, joins AFM as chief marketing officer, and from the Chilean Avocado Importers Association, Maggie Bezart joins as vice president, trade and promotions, effective immediately.