Capacitor structures, DRAM cell structures, and integrated circuitry, and methods of forming capacitor structures, integrated circuitry and DRAM cell structures

Granted: May 29, 2001 Filed: Feb 11, 1997

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.