Patent ID: 6403440
Filing Date: 2002-06-11
Classification: H01L

Abstract:
A method for fabricating a capacitor in a semiconductor configuration, which comprises:providing a transistor with a source/drain region formed in a semiconductor body and a terminal region of a first conductivity type connected to the source/drain region; applying alternating semiconductor layers of different doping concentrations of a second conductivity type including weaker doped layers and stronger doped layers on the terminal region resulting in the alternating semiconductor layers having different etching rates for forming one electrode of a stacked capacitor connected to the terminal region; etching the alternating semiconductor layers resulting in selective removal of some of the alternatively semiconductor layers for forming the one electrode of the stacked capacitor from remaining layers of the alternating semiconductor layers; and performing a doping reversal of the remaining layers remaining after the etching step to the first conductivity type for forming the one electrode of the stacked capacitor.