Methods of forming conductive elements of semiconductor devices and of forming memory cells

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United States of America Patent

PATENT NO 9865812
SERIAL NO

15375457

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Abstract

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Methods of forming conductive elements, such as interconnects and electrodes, for semiconductor structures and memory cells. The methods include forming a first conductive material and a second conductive material comprising silver in a portion of at least one opening and performing a polishing process to fill the at least one opening with at least one of the first and second conductive materials. An annealing process may be performed to form a mixture or an alloy of the silver and the first conductive material. The methods enable formation of silver-containing conductive elements having reduced dimensions (e.g., less than about 20 nm). The resulting conductive elements have a desirable resistivity. The methods may be used, for example, to form interconnects for electrically connecting active devices and to form electrodes for memory cells. A semiconductor structure and a memory cell including such a conductive structure are also disclosed.

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Patent Owner(s)

  • MICRON TECHNOLOGY, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goodwin, Rob B Eagle, US 5 16
Sills, Scott E Boise, US 205 1182
Sinha, Nishant Boise, US 168 2089
Tang, Sanh D Kuna, US 281 4020
West, Whitney L Boise, US 5 16

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