Patent ID: 7170736
Filing Date: 2007-01-30
Classification: H01L

Abstract:
1. A capacitor, comprising: a first electrode having an electrode thickness, said first electrode including: a layer of low-resistance non-silicon material, and a layer of silicon having a first major surface contacting said layer of low-resistance material, a substantially smooth second major surface spaced from said first major surface by a thickness of said layer of silicon, and first and second peripheral edges disposed at opposite ends of said first and second major surfaces, said first and second peripheral edges extending between said first and second major surfaces, said first major surface of said layer of silicon contacting said layer of low-resistance non-silicon material at and between locations of said first and second peripheral edges, wherein said thickness of said layer of silicon is less than half said electrode thickness; a capacitor dielectric disposed on said substantially smooth second major surface of said layer of silicon; and a second electrode formed on said capacitor dielectric, said second electrode including at least one material selected from the group consisting of metals, low-resistance compounds of metals and deposited semiconductors having a dopant concentration of at least 1×10