Patent ID: 7645669
Filing Date: 2010-01-12
Classification: B82Y,H01L

Abstract:
1. A method for forming a nanotip capacitor, the method comprising: providing a bottom electrode from a Si-containing material selected from a group consisting of silicon-on-insulator (SOI), polycrystalline Si, amorphous Si, single-crystal Si, doped Si, and doped silicon-germanium (SiGe); depositing a growth promotion metal overlying the Si-containing bottom electrode, the growth promotion metal selected from a group of materials consisting of Ti, Ni, Au, Ta, Co, Ir, and Pt; growing electrically conductive nanotips overlying the bottom electrode; depositing an electrically insulating dielectric overlying and completely covering the nanotips, wherein the dielectric is a material selected from a group consisting of HfO depositing an electrically conductive top electrode overlying dielectric-covered nanotips.