Patent ID: 7338831
Filing Date: 2008-03-04
Classification: B82Y,G01Q,G11B

Abstract:
1. A method of fabricating a semiconductor probe which includes a cantilever and a tip doped with first impurities formed on an end portion of the cantilever, wherein a resistive region lightly doped with second impurities is formed at a peak of the tip, and first and second semiconductor electrode regions heavily doped with the second impurities are formed at inclined surfaces of the tip, the polarity of the second impurities being opposite to that of the first impurities, the method comprising: (a) forming a stripe-shape mask layer on a substrate doped with first impurities and forming first and second semiconductor electrode regions by heavily doping second impurities on the substrate uncovered by the mask layer, the second impurities being opposite in polarity to the first impurities; (b) annealing the substrate to narrow a distance between the first and second semiconductor electrode regions and form resistive regions lightly doped with the second impurities at outer boundaries of the first and second semiconductor electrode regions; (c) patterning the mask layer in a predetermined shape and etching a portion of a top surface of the substrate not covered by the patterned mask layer to form a resistive tip; and (d) etching a bottom surface of the substrate to form a cantilever with the resistive tip formed at an end portion thereof.