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 ?
The researchers first looked for direct evidence of enterovirus infection in the cerebrospinal fluid (CSF) of 13 children and one adult diagnosed with AFM in 2018.
While there is no proven treatment for AFM, early diagnosis is critical to getting patients the best care possible, according to a Vital Signs report released today.
This report summarizes and updates surveillance data for suspected cases of AFM reported to CDC (9), with onset of flaccid limb weakness from January 1 through December 31, 2018.
AFM is a rare but serious disease that attacks the spinal cord, causing the muscles and reflexes in the body to become weak.
The researchers found that among 374 reported cases of AFM from January through December 2018, 62, 7, and 31 percent of cases were classified as confirmed, probable, and non-AFM, respectively.
'This church building is not only for the AFM, but for the city of Francistown as a whole,' he added.
(https://www.cdc.gov/acute-flaccid-myelitis/about-afm.html) The Center for Disease Control and Prevention  defines AFM as "a rare but serious condition.
"However," added a veteran AFM exhibitor, "the freeloaders are like a herd that goes wherever it finds open pasture." In this instance, that pasture refers to Le Merigot Hotel, which is adjacent to the Loews, and the Viceroy Hotel, which is across the street from the Loews.
Though AFM's AC-47 is not the original gunship on which Levitow served, it is one of approximately 40 in the world that remain flyable.
This event will also include an AFM workshop at the new Park NanoScience Center at SUNY Polytechnic, an evening cocktail networking reception and an AFM image contest.
With the tilted components, the conical or pyramidal-shaped AFM tip can directly detect the steep sidewalls in the conventional scanning mode.