Abstract:
Disclosed is a system including first and second plurality of conductors (M2...M6) stacked along a first axis on a substrate. The first axis is perpendicular to a plane on which the substrate lies. In the first and second plurality of conductors, each conductor is connected to an adjacent conductor by one or more first vias (V23...V56) arranged along the first axis. The first and second plurality of conductors are arranged in parallel along a second axis perpendicular to the first axis and parallel to the plane on which the substrate lies. The first plurality of conductors respectively lie on a plurality of planes perpendicular to the first axis and parallel to the plane on which the substrate lies. The second plurality of conductors respectively lie on the plurality of planes. Capacitances are formed along the plurality of planes between the first plurality of conductors and the second plurality of conductors.
Abstract:
Higher capacitance density is achieved by increasing a surface area of a capacitor. A larger surface area may be obtained by forming isotropic ball shapes (a concave surface) in the trenches on the semiconductor die. The concave surfaces are fabricated by depositing bilayers of amorphous-silicon and silicon oxide. Openings are patterned in the silicon oxide hard mask for trenches. The openings are transferred to the amorphous-silicon layers through isotropic etching to form concave surfaces. Conducting, insulating, and conducting layers are deposited on the concave surfaces of the trenches by atomic layer deposition.
Abstract:
Process for forming highly conformal titanium nitride on a silicon substrate. A gaseous reaction mixture of titanium tetrachloride and ammonia is passed over the semiconductor substrate surface maintained at a temperature of about 350 DEG C to about 800 DEG C. The r atio of titanium tetrachloride to ammonia is about 5:1 to 20:1. The high degree of conformality achieved by the process of the invention allows TiN layers to be deposited on structures with high aspect ratios and on complicated, three-dimensional structures without forming a large seam or void.
Abstract:
A method for providing semiconductor openings having a substantially straight wall or other desired etch profile. An etchable material layer is formed having target dopant levels or other etch rate varying characteristics to compensate for the characteristics of a selected etching process to achieve the desired etch profile. The etching process may also be varied to further match the characteristics of the etchable material layer.
Abstract:
Semiconductor memory devices and methods for forming the devices are disclosed. In one embodiment, the devices include a) a semiconductor substrate (11); b) a field effect transistor gate (14) positioned outwardly of the semiconductor substrate; c) opposing active areas (24, 26) formed within the semiconductor substrate on opposing sides of the gate; d) a capacitor electrically connected with one of the active areas; the capacitor comprising an inner storage node (36), a capacitor dielectric layer (38), and an outer cell node (40); the inner storage node electrically connecting with the one active area and physically contacting the one active area; e) a bit line (46); f) a dielectric insulating layer (44) positioned intermediate the bit line and the other active area; and g) an electrically conductive bit line plug (36, 38, 40, 39) extending through the insulating layer to contact with the other active area and electrically interconnect the bit line with the other active area. Constructions in which the bit line plug comprises an electrically conductive annular ring are also disclosed.
Abstract:
An energy storage device includes a first electrode (110, 510) including a first plurality of channels (111, 512) that contain a first electrolyte (150, 514) and a second electrode (120, 520) including a second plurality of channels (121, 522) that contain a second electrolyte (524). The first electrode has a first surface (115, 511) and the second electrode has a second surface (125, 521). At least one of the first and second electrodes is a porous silicon electrode, and at least one of the first and second surfaces comprises a passivating layer (535).
Abstract:
Improved energy storage is provided by exploiting two physical effects in combination. The first effect can be referred to as the All-Electron Battery (AEB) effect, and relates to the use of inclusions embedded in a dielectric structure between two electrodes of a capacitor. Electrons can tunnel through the dielectric between the electrodes and the inclusions, thereby increasing the charge storage density relative to a conventional capacitor. The second effect can be referred to as an area enhancement effect, and relates to the use of micro-structuring or nano- structuring on one or both of the electrodes to provide an enhanced interface area relative to the electrode geometrical area. Area enhancement is advantageous for reducing the self-discharge rate of the device.
Abstract:
Die Erfindung betrifft ein Halbleitersubstrat sowie eine darin ausgebildete Halbleiterschaltung und zugehörige Herstellungsverfahren, wobei zur Realisierung von vergrabenen Kondensatoren in einem Trägersubstrat (1) eine Vielzahl von Vertiefungen (P) mit einer jeweiligen dielektrischen Schicht (D) und einer Kondensator-Elektrode (E2) ausgebildet sind und eine eigentliche Halbleiter-Bauelementschicht (3) durch eine Isolationsschicht (2) vom Trägersubstrat (1) isoliert ist.
Abstract:
The present specification discloses highly efficient capacitor structures. One embodiment of the present invention is referred to herein as a vertical parallel plate (VPP) structure. In accordance with this embodiment, a capacitor structure comprises a plurality of vertical plates. The vertical plates are substantially parallel to each other, and each vertical plate comprises multiple conducting strips. These conducting strips are substantially parallel to each other and are connected to each other by one or more vias. The vertical plates are alternately connected to each other, creating a first portion of the vertical plates and a second portion of the vertical plates, such that the first portion of the vertical plates forms a first terminal of the capacitor structure, and the second portion of the vertical plates forms a second terminal of the capacitor structure. Either slotted vias or individual vias can be used to connect the conducting strips. Another embodiment of the present invention is referred to herein as a vertical bars (VB) structure. In accordance with this embodiment of the present invention, a capacitor structure comprises a plurality of rows of vertical bars, wherein within each row, the vertical bars are parallel to each other, and each vertical bar comprises multiple conducting patches. These conducting patches are connected to each other by one or more vias.