Patent ID: 8815697
Filing Date: 2014-08-26
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, the method comprising: providing a substrate; forming a composite layer, including sequentially stacking on the substrate alternating layers of first through nth sacrificial layers and first through nth supporting layers, where n is a natural number greater than 1, wherein the first supporting layer is stacked on the first sacrificial layer; forming a plurality of openings that penetrate the composite layer; forming a lower electrode in the plurality of openings; removing at least portions of the first through nth sacrificial layers to define a support structure for the lower electrode extending between adjacent ones of the plurality of openings and the lower electrode formed therein, the support structure including the first through nth supporting layers and a gap region between adjacent ones of the first through nth supporting layers where the first through nth sacrificial layers have been removed; forming a dielectric layer on the lower electrode; and forming an upper electrode on the dielectric layer, wherein forming a composite layer includes: