Patent ID: 7674674

Claim:
A method of forming a structure for a gain cell on a substrate, the method comprising: forming a fin of a read device from a layer of a semiconducting material and projecting from the substrate; forming a first gate electrode and a second gate electrode of the read device flanking the fin; forming first and second source/drain regions of the read device in the fin adjacent to the first and the second gate electrodes; and forming a layer stack including a first capacitor plate, a second capacitor plate, and a capacitor dielectric between the first and second capacitor plates, the layer stack arranged in a generally vertical relationship with the read device, the first capacitor plate being electrically isolated from the second capacitor plate by the capacitor dielectric to define a storage device, and the first capacitor plate being electrically coupled with the first gate electrode of the read device for sensing an electrical charge stored by the storage device.