Jumping probe microscope
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United States of America Patent
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-
Jul 20, 1993
Grant Date -
N/A
app pub date -
Jun 5, 1989
filing date -
Jun 5, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A microscope of the scanning probe variety. This device circumvents one of the serious problems of prior art scanning probe microscopes, i.e. that the probe is always near or on the surface of the object being scanned, creating the danger of damaging the probe on the surface especially on large scans or at high scan speeds. The microscope of this invention jumps the probe over the surface, causing the probe to be near or on the surface during only a very limited portion of the scan and therefore able to scan quickly over rough surfaces without undue damage to the probe or surface. Both scanning tunneling microscopes and atomic force microscopes employing the invention are disclosed. The scanning tunneling microscope is shown with both digital and analog control of the movement of the probe.
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