Patent ID: 7915109

Claim:
A method for manufacturing a semiconductor probe structure using an impact-ionization metal oxide semiconductor device, the method comprising: forming a first slant face of the semiconductor probe structure by an anisotropic etching process using a first etching mask pattern formed on a silicon substrate; forming a first semiconductor electrode region by doping impurities on an exposed portion of the silicon substrate and removing the first etching mask pattern; forming a second etching mask pattern in an opposite direction of the first etching mask pattern on the silicon substrate; forming a spacer layer on a side wall of the second etching mask pattern; forming a second slant face of the probe by anisotropically etching the exposed portion of the silicon substrate and thereafter removing the spacer layer; forming a second semiconductor electrode region by doping the impurities on the exposed portion of the silicon substrate and thereafter removing the second etching mask pattern; forming a silicon oxide layer pattern on the silicon substrate having the second semiconductor electrode region; forming spacer layers on both side walls of the silicon oxide layer pattern; and etching the silicon substrate to a predetermined depth by photolithographic and etching processes using the spacer layers and removing the spacer layers.