Halbleiterssonde mit Widerstandsspitze und deren Herstellungsverfahren

摘要

Provided are a semiconductor probe with a resistive tip, and a method of fabricating the semiconductor probe. The method includes forming a stripe-shaped mask layer on a substrate doped with a first impurity, and forming first and second electrode regions by heavily doping portions of the substrate not covered by the mask layer with a second impurity opposite in polarity to the first impurity; annealing the substrate to decrease a gap between the first and second semiconductor electrode regions, and forming resistive regions lightly doped with the second impurity at portions contiguous with the first and second semiconductor electrode regions; forming a stripe-shaped first photoresist orthogonal to the mask layer, and etching the mask layer such that the mask layer has a square shape; forming a second photoresist on the substrate to cover a portion of the first photoresist and define a cantilever region; forming the cantilever region by etching portions not covered by the first and second photoresists; and removing the first and second photoresists, and forming a resistive tip having a semi-quadrangular pyramidal shape by etching portions of the substrate not covered by the mask layer.