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
Buffering stop structure and corresponding packing case
Soybean cultivar CL0911610
Multi user MIMO detection utilizing averaged spatial whitening
Dry-cooling unit with gravity-assisted coolant flow
Apoptosis inductor extracted from potato, potato foodstuff containing the inductor, and processed product thereof
Quantitative oxygen imaging systems and methods using echo-based single point imaging
  Randomly Featured Patents
Transmission apparatus
Apparatus and method for obtaining information in a wide-area telephone system with multiple local exchanges and multiple information storage sites
Low power flip flop through partially gated slave clock
Detergent gel compositions in hexagonal liquid crystal form
System and method for providing debt protection for financial overdraft account
Polyol ester compositions with unconverted hydroxyl groups for use as lubricant base stocks
Roller bearing and roller type linear guide apparatus
Unitized secondary glazing frame and venetian blind assembly
Monoclonal antibody selectively recognizing listeria monocytogenes, hybridoma producing the antibody, test kit comprising the antibody and detection method of listeria monocytogenes using the
Drive wheel system for industrial trucks