Resources Contact Us Home
Method of making superhard tips for micro-probe microscopy and field emission

Image Number 4 for United States Patent #5393647.

Forming micro-probe tips for an atomic force microscope, a scanning tunneling microscope, a beam electron emission microscope, or for field emission, by first thinning a tip of a first material, such as silicon. The tips are then reacted with a second material, such as atoms from an organic or ammonia vapor, at a temperature of about C. and vacuum conditions for several minutes. Vapors such as methane, propane or acetylene will be converted to SiC or WC while ammonia will be converted to Si.sub.3 N.sub.4. The converted material will have different physical, chemical and electrical properties. For example, a SiC tip will be superhard, approaching diamond in hardness. Electrically conductive tips are suitable for field emission.

  Recently Added Patents
Digital photographing apparatus and control method for evaluating validity of an auto-focus operation
MOS device for eliminating floating body effects and self-heating effects
Socket type MEMS device with stand-off portion
Polyester resin for toner, electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming met
Particulate filter with hydrogen sulphide block function
Controller for flexible and extensible flow processing in software-defined networks
Storage system comprising multiple microprocessors and method for sharing processing in this storage system
  Randomly Featured Patents
Simplified homing system for a missile of the shell or rocket type
Wrist watch
Permeability restoration and lowering of uranium leakage from leached ore beds
Surgical access system and related methods
Laser diode module, laser apparatus and laser processing apparatus
Stranded conductor for dynamoelectric machines
Television set
Frequency selective surface with repeating pattern of concentric closed conductor paths, and antenna having the surface
Apparatus for in-situ dressing of threaded grinding wheels used in gear grinding machines
Method and device for reducing the contact resistance in organic field-effect transistors by embedding nanoparticles to produce field boosting