摘要:
A method of forming a cell memory structure including the step of planarizing an HDP/LDP oxide layer lying over a capacitor area. The method provides for the planarization of the cell storage node, good isolation between the transistor and storage node, reduced step height for the cell-transistor and has the potential for increasing the node capacitance (like DRAM storage node).
摘要:
A process for fabricating a capacitor under bit line (CUM), DRAM device, featuring increased capacitance, without increasing the aspect ratio for a dry etched, narrow diameter bit line contact hole, has been developed. The process features increasing the vertical space in a capacitor opening, needed to accommodate a capacitor structure with increased vertical dimensions, via selective removal of the top portions of the polysilicon plug structures exposed in the capacitor openings. The depth of a subsequent bit line contact hole, opened to a non-truncated polysilicon plug structure, is therefore not increased as a result of the increase capacitor depth, thus not resulting in an increased aspect ratio for the dry etched, narrow diameter bit line contact hole.
摘要:
A system-on-chip device comprises a first capacitor in a first region, a second capacitor in a second region, and may further comprise a third capacitor in a third region, and any additional number of capacitors in additional regions. The capacitors may be of different shapes and sizes. A region may comprise more than one capacitor. Each capacitor in a region has a top electrode, a bottom electrode, and a capacitor insulator. The top electrodes of all the capacitors are formed in a common process, while the bottom electrodes of all the capacitors are formed in a common process. The capacitor insulator may have different number of sub-layers, formed with different materials or thickness. The capacitors may be formed in an inter-layer dielectric layer or in an inter-metal dielectric layer. The regions may be a mixed signal region, an analog region, and so forth.
摘要:
Semiconductor devices with orientation-free decoupling capacitors and methods of manufacture thereof are disclosed. In one embodiment, a semiconductor device includes at least one integrated circuit and at least one decoupling capacitor. The at least one decoupling capacitor is oriented in a different direction than the at least one integrated circuit is oriented.
摘要:
The present disclosure provides a semiconductor device that includes a semiconductor substrate, an isolation structure formed in the semiconductor substrate, a conductive layer formed over the isolation structure, and a metal-insulator-metal (MIM) capacitor formed over the isolation structure. The MIM capacitor has a crown shape that includes a top electrode, a first bottom electrode, and a dielectric disposed between the top electrode and the first bottom electrode, the first bottom electrode extending at least to a top surface of the conductive layer.
摘要:
An integrated circuit structure includes a chip having a first region and a second region. A first metal-insulator-metal (MIM) capacitor is formed in the first region. The first MIM capacitor has a first bottom electrode; a first top electrode over the first bottom electrode; and a first capacitor insulator between and adjoining the first bottom electrode and the first top electrode. A second MIM capacitor is in the second region and is substantially level with the first MIM capacitor. The second MIM capacitor includes a second bottom electrode; a second top electrode over the second bottom electrode; and a second capacitor insulator between and adjoining the second bottom electrode and the second top electrode. The second capacitor insulator is different from the first capacitor insulator. The first top electrode and the first bottom electrode may be formed simultaneously with the second top electrode and the second bottom electrode, respectively.
摘要:
Devices and methods for preventing capacitor leakage caused by sharp tip. The formation of sharp tip is avoided by a thicker bottom electrode which fully fills a micro-trench that induces formation of the sharp tip. Alternatively, formation of the sharp tip can be avoided by recessing the contact plug to substantially eliminate the micro-trench.
摘要:
A metal-insulator-metal (MIM) capacitor is provided. The bottom electrode of the MIM capacitor is electrically connected to a connection node. The connection node may be, for example, a contact formed in an interlayer dielectric, a polysilicon connection node, a doped polysilicon or silicon region, or the like. A contact provides an electrical connection between the connection node and components formed above the connection node. A second contact provides an electrical connection to the top electrode.
摘要:
An embedded MIM capacitor in a logic circuit and method for forming the same are disclosed. The device includes a substrate, a bottom electrode, a dielectric film, and a top electrode. The substrate comprises an insulator region. The bottom electrode comprises a first conductor and overlies the insulator region. The dielectric film overlies the bottom electrode, remaining parts of the bottom plate exposed. The top electrode comprises a second conductor and overlies the dielectric film. The dielectric film lines sidewalls and bottom of the top electrode.
摘要:
A semiconductor device includes a group of capacitors and a trench. Each capacitor includes a first conductive material layer, a dielectric layer, and a second conductive material layer. The dielectric layer is located between the first and second conductive material layers. The first conductive material layer coats an inside surface of a cup-shaped opening formed in an insulating layer. The trench is formed in the insulating layer. The trench extends between and crosses each of the capacitors in the group. The dielectric layer and the second conductive material layer are formed over the first conductive material layer in the cup-shaped openings and over an inside surface of the trench. The second conductive material layer extends between the capacitors of the group via the trench. Also, the second conductive material layer forms top electrodes for the capacitors of the group.