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
Area reduction for surface mount package chips
Method of inspecting wafer
Hermetically sealed atomic sensor package manufactured with expendable support structure
Automated solar collector installation design including ability to define heterogeneous design preferences
VEGF-specific capture agents, compositions, and methods of using and making
Monitoring of undesirable fluid ingress into subsea control modules
Accelerator for a read-channel design and simulation tool
  Randomly Featured Patents
Method for forming a film, by using electrostatic forces
Helmet supported optical systems with four reflections
Random packing for fluid contact devices and method of preparing said packing
Variants of a family 44 xyloglucanase
Adaptive method and apparatus for forecasting and controlling neurological disturbances under a multi-level control
Synchronized mid and forward motor cycle foot controls
Superabrasive tools having improved caustic resistance
Apparatus and method for steering a communication to an open stream
Real time three dimensional geo-referenced digital orthophotograph-based positioning, navigation, collision avoidance and decision support system
Mobile terminal application subsystem and access subsystem architecture method and system