Abstract:
A process for fabricating a device including the step of forming a structure for facilitating the passivation of surface states is disclosed. The structure comprises a hydrogen-rich (H-R) silicon nitride layer formed as part of the device structure. The H-R layer, which is formed by plasma-enhanced chemical vapor deposition, comprises hydrogen in an amount greater than that of conventional PLCVD nitride layers.
Abstract:
A structure and method is provided for fabricating isolated capacitors. The method includes simultaneously forming a plurality of deep trenches and one or more isolation trenches surrounding a group or array of the plurality of deep trenches through a SOI and doped poly layer, to an underlying insulator layer. The method further includes lining the plurality of deep trenches and one or more isolation trenches with an insulator material. The method further includes filling the plurality of deep trenches and one or more isolation trenches with a conductive material on the insulator material. The deep trenches form deep trench capacitors and the one or more isolation trenches form one or more isolation plates that isolate at least one group or array of the deep trench capacitors from another group or array of the deep trench capacitors.
Abstract:
A sputtering deposition wherein high aspect ratio apertures are coated with conductive films exhibiting low bulk resistivity, low impurity concentrations, and regular morphologies. A collimator is used having an aspect ratio that approximates the aspect ratio of the apertures. The resulting film thickness at the bottom of the aperture is at least 2X what can be achieved using conventional sputtering methods.
Abstract:
A structure and method is provided for fabricating isolated capacitors. The method includes simultaneously forming a plurality of deep trenches and one or more isolation trenches surrounding a group or array of the plurality of deep trenches through a SOI and doped poly layer, to an underlying insulator layer. The method further includes lining the plurality of deep trenches and one or more isolation trenches with an insulator material. The method further includes filling the plurality of deep trenches and one or more isolation trenches with a conductive material on the insulator material. The deep trenches form deep trench capacitors and the one or more isolation trenches form one or more isolation plates that isolate at least one group or array of the deep trench capacitors from another group or array of the deep trench capacitors.
Abstract:
A method of forming interconnections of devices of integrated circuits, especially interconnecting spaced source/drain regions and/or gate regions, and the resulting structures are provided. An etch-stop material such as silicon dioxide is deposited over the entire substrate on which the devices are formed. A layer of silicon is deposited over etch-stop material, and the silicon is selectively etched to reveal the etch-stop material at the regions to be connected. The etch-stop material at those regions is then removed. Following this a high-conductivity material, which is either a refractory metal or a silicide formed from layers of silicon and a refractory metal, is formed on the substrate connecting the spaced regions.
Abstract:
Es wird eine Struktur und ein Verfahren zur Herstellung isolierter Kondensatoren bereitgestellt. Das Verfahren weist das gleichzeitige Bilden mehrerer tiefer Gräben und eines oder mehrerer Isolationsgräben, welche eine Gruppe oder ein Feld der mehreren tiefen Gräben umgeben, durch eine SOI- und dotierte Polyschicht zu einer darunter liegenden Isolatorschicht auf. Das Verfahren weist ferner das Auskleiden der mehreren tiefen Gräben und des einen oder der mehreren Isolationsgräben mit einem Isolatormaterial auf. Das Verfahren weist ferner das Füllen der mehreren tiefen Gräben und des einen oder der mehreren Isolationsgräben mit einem leitfähigen Material auf dem Isolatormaterial auf. Die tiefen Gräben bilden Tiefgrabenkondensatoren, und der eine oder die mehreren Isolationsgräben bilden eine oder mehrere Isolationsplatten, welche mindestens eine Gruppe oder ein Feld der Tiefgrabenkondensatoren von einer anderen Gruppe oder einem Feld der Tiefgrabenkondensatoren isolieren.
Abstract:
A sputtering deposition wherein high aspect ratio apertures (50) are coated with conductive films (40) exhibiting low bulk resistivity, low impurity concentrations, and regular morphologies. A collimator (60) is used having an aspect ratio that approximates the aspect ratio of the apertures (50). The resulting film thickness at the bottom of the aperture is at least 2X what can be achieved using conventional sputtering methods.