Patent ID: 7419843
Filing Date: 2008-09-02
Classification: G01Q

Abstract:
1. A method of manufacturing a semiconductor probe having a resistive tip, comprising: sequentially forming first and second mask films on a silicon substrate doped with a first dopant and forming first and second semiconductor electrode regions by highly doping a second dopant on a region of the silicon substrate except the first and second mask films; annealing the silicon substrate to form resistive regions lightly doped with the second dopant on an outer region of the first and second semiconductor electrode regions; patterning the first and second mask films in a predetermined shape; forming a tip neck portion having a first width under the first mask film by etching an upper surface of the silicon substrate except the patterned first and second mask films; forming a third mask film corresponding to the tip neck portion by etching the exposed first mask film; forming a width of the tip neck to a predetermined second width by etching the silicon substrate using the third mask film as a mask after removing the second mask film; forming a resistive tip by annealing the silicon substrate after removing the third mask film; and etching the silicon substrate to form a cantilever so that the resistive tip is disposed on an end portion of the cantilever, wherein the first and second mask films have different etch selectivities.