Tip coating system for scanning probe microscopy
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United States of America Patent
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-
Jan 25, 2000
Issued Date -
N/A
app pub date -
Dec 5, 1996
filing date -
Sep 6, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tip coating system for use with scanning tunneling microscope (STM) tips. The tip coating system includes a tip holder, a plate having a slot for receiving the tip and for holding a coating material, a heater for heating the coating material into a molten blob, a micropositioner for displacing the plate to and from the tip and for moving the tip within the slot so that selected portions of the tip contact the molten blob of coating material. The tip coating system is preferably controlled by electronic controllers, including a temperature controller for the heater. The tip coating system is used to insulate the tips with soft polymer coating material to ensure very low tip leakage current (on the order of about 1 pA typical).
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