Methods of forming a plurality of capacitors

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United States of America Patent

PATENT NO 9076757
APP PUB NO 20130323902A1
SERIAL NO

13964947

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Abstract

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A method of forming a plurality of capacitors includes providing a plurality of capacitor electrodes, an elevationally inner insulative retaining material received laterally about the capacitor electrodes, an elevationally outer insulative retaining material received laterally about the capacitor electrodes, a first material received laterally about the capacitor electrodes elevationally inward of the inner insulative retaining material, and a second material received laterally about the capacitor electrodes elevationally between the inner and outer insulative retaining materials. Openings are anisotropically etched to extend through the outer insulative retaining material and the second material. After the anisotropic etching, remaining of the second material is isotropically etched through the openings from being received laterally about the capacitor electrodes between the inner and outer insulative retaining materials. The isotropic etching of the second material is conducted selectively relative to the capacitor electrodes and the inner and outer insulative retaining materials. The capacitor electrodes are ultimately incorporated into a plurality of capacitors.

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Patent Owner(s)

  • MICRON TECHNOLOGY, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Che-Chi Boise, US 10 43

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