Patent ID: 8518788
Filing Date: 2013-08-27
Classification: H01L

Abstract:
1. A method of forming a plurality of capacitors, comprising: 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, a second material received laterally about the capacitor electrodes elevationally between the inner and outer insulative retaining materials; anisotropically etching openings to extend through the outer insulative retaining material and the second material; after the anisotropic etching, isotropically etching remaining of the second material 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 being conducted selectively relative to the capacitor electrodes and the inner and outer insulative retaining materials; and incorporating the capacitor electrodes into a plurality of capacitors.