Electrochemical wire sharpening device and method for the fabric

Details Electrochemical wire sharpening device and method for the fabric Electrochemical wire sharpening device and method for the fabric

1991-08-12

1994-02-15

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412975, 20412995, 204224M, 204225, 204228, C25F 314, C25F 700

Patent

active

052863557

ABSTRACT:
The invention is a process for making sharp tips. A computer controlled instrument and process characterizes the tip while in formation and reliably produces tips having a radius of curvature of approximately 100 nm. In the invention, the position of the wire during the etching operation is mechanically controlled while the etching current is monitored. When the current reaches a predetermined level, the process is halted.

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The art and science and other aspects of making sharp tips, J. Vac. Sci. Technol. 89 (2) Mar./Apr. 1991, pp. 601-608.
Platinum/Iridium tips with controlled geometry for scanning tunneling microscopy, J. Vac. Sci. Technol. A8(4), Jul./Aug. 1990, pp. 3558-3562.
Preparation of STM tips for in-situ characterization of electrode surfaces, Journal of Microscopy, vol. 152, Pt-3, Dec. 1988, pp. 651-661.

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