摘要:
A memory cell comprising a capacitor having a dielectric layer interposing first and second vertically disposed electrodes, an insulating lining located over the capacitor, and a transistor gate extension passing over the capacitor. A spacer isolates an end of one of the capacitor electrodes from the transistor gate extension. In one embodiment, the spacer includes a first non-planar profile configured to engage a second non-planar profile comprising ends of the one of the capacitor electrodes and the insulating lining.
摘要:
An integrated circuit includes a circuit module having a plurality of active components coupled between a pair of supply nodes, and a capacitive decoupling module coupled to the circuit module. The capacitive decoupling module includes a plurality of metal-insulator-metal (MiM) capacitors coupled in series between the pair of supply nodes, wherein a voltage between the supply nodes is divided across the plurality of MiM capacitors, thereby reducing voltage stress on the capacitors.
摘要:
An integrated circuit includes a circuit module having a plurality of active components coupled between a pair of supply nodes, and a capacitive decoupling module coupled to the circuit module. The capacitive decoupling module includes a plurality of metal-insulator-metal (MiM) capacitors coupled in series between the pair of supply nodes, wherein a voltage between the supply nodes is divided across the plurality of MiM capacitors, thereby reducing voltage stress on the capacitors.
摘要:
Methods and apparatus are disclosed for manufacturing metal-insulator-metal (MIM) capacitors. The MIM capacitors may comprise an electrode, which may be a top or bottom electrode, which has a bottle neck. The MIM capacitors may comprise an electrode, which may be a top or bottom electrode, in contact with a sidewall of a via. The sidewall contact or the bottle neck of the electrode may burn out to form a high impedance path when the leakage current exceeds a specification, while the sidewall contact or the bottle neck of the electrode has no impact for normal MIM operations. The MIM capacitors may be used as decoupling capacitors.
摘要:
A method for fabricating a metal-insulator-metal capacitor in an embedded DRAM process is described. A plurality of contact plugs are provided through an insulating layer to semiconductor device structures in a substrate wherein the contact plugs are formed in a logic area of the substrate and in a memory area of the substrate and providing node contact plugs to node contact regions within the substrate in the memory area. Thereafter, capacitors are fabricated in a twisted trench in a self-aligned copper process.
摘要:
The intrinsic refresh time of a DRAM and the reliability of the gate oxide of the pass transistor of the memory cell of the DRAM is improved by a method to form electronic components of an integrated circuit on a semiconductor substrate that will eliminate damage to molecular bonds and reduce junction leakage within the semiconductor substrate. The method begins by forming said electronic components using recognized methods to create implantations, insulating oxide layers, selectively etching the insulating oxide layers and deposited conductive layers to assemble the transistors and capacitors of the integrated circuit. Interconnections between the electronic components are then formed. The interconnections include multiple layers of metal, multiple layers of heavily doped polycrystalline silicon, and silicon/metal alloys to connect terminals of said electronic components to the multiple layers of metals and multiple layers of heavily doped polycrystalline silicon. The molecular bonds are then repaired by sintering the semiconductor substrate in an atmosphere of atomic hydrogen (H2) for a time and a temperature sufficient to repair damage to the molecular bonds within said semiconductor substrate so as to reduce said junction leakage of said transistors and to remove traps between the surface of the semiconductor substrate and the gate oxide of the transistors.
摘要:
A method for fabricating a metal-insulator-metal capacitor in an embedded DRAM process is described. A plurality of contact plugs are provided through an insulating layer to semiconductor device structures in a substrate wherein the contact plugs are formed in a logic area of the substrate and in a memory area of the substrate and providing node contact plugs to node contact regions within the substrate in the memory area. Thereafter, capacitors are fabricated in a twisted trench in a self-aligned copper process.
摘要:
Methods and apparatus are disclosed for manufacturing metal-insulator-metal (MIM) capacitors. The MIM capacitors may comprise an electrode, which may be a top or bottom electrode, which has a bottle neck. The MIM capacitors may comprise an electrode, which may be a top or bottom electrode, in contact with a sidewall of a via. The sidewall contact or the bottle neck of the electrode may burn out to form a high impedance path when the leakage current exceeds a specification, while the sidewall contact or the bottle neck of the electrode has no impact for normal MIM operations. The MIM capacitors may be used as decoupling capacitors.
摘要:
By introducing a carefully controlled anneal step after the deposition of tungsten silicide (onto a layer of polysilicon) but before the deposition of a layer of silicon oxide, interaction between the tungsten silicide and a subsequently deposited layer of silicon oxide is greatly reduced or eliminated. This gives good values for the resistance of gate lines formed from the composite as well as for the contact resistance between the polysilicon and the tungsten silicide.
摘要:
The present invention discloses a method for eliminating leakage current in a semiconductor device by preventing silicon loss in a first area of a substrate during fabricating the semiconductor device. The method according to the preferred embodiment of the present invention includes the following steps. Firstly, form a first gate structure on a second area of the substrate, and form a first structure together with a second structure on the first area of the substrate. Then form a dielectric layer on the topography of the wafer. Next, etch a thickness of the dielectric layer until about 200-1000 angstroms in thickness of the dielectric layer is remained. Subsequently, form a photoresist pattern on the first area of the substrate, and etch the exposed second portion of the dielectric layer to form spacers of the first gate structure. The spacers and the gate structure constitute a gate electrode of a first transistor. Next, form a source region and a drain region in the substrate, wherein the gate electrode, the source region, and the drain region constitute a first transistor, then remove the photoresist pattern. Finally, form a second transistor, a capacitor, and a control line in the first area of the substrate, wherein the first structure and the second structure is formed on the first area of the substrate.