摘要:
Methods are provided for the fabrication of multiple finger transistors. A method comprises forming a layer of gate-forming material overlying a semiconductor substrate and forming a layer of dummy gate material overlying the layer of gate-forming material. The layer of dummy gate material is etched to form a dummy gate and sidewall spacers are formed about sidewalls of the dummy gate. The dummy gate is removed and the layer of gate-forming material is etched using the sidewall spacers as a mask to form at least two gate electrodes.
摘要:
A double gate germanium metal-oxide semiconductor field-effect transistor (MOSFET) includes a germanium fin, a first gate formed adjacent a first side of the germanium fin, and a second gate formed adjacent a second side of the germanium fin opposite the first side. A triple gate MOSFET includes a germanium fin, a first gate formed adjacent a first side of the germanium fin, a second gate formed adjacent a second side of the germanium fin opposite the first side, and a top gate formed on top of the germanium fin. An all-around gate MOSFET includes a germanium fin, a first sidewall gate structure formed adjacent a first side of the germanium fin, a second sidewall gate structure formed adjacent a second side of the germanium fin, and additional gate structures formed on and around the germanium fin.
摘要:
A method for forming a metal-oxide semiconductor field-effect transistor (MOSFET) includes patterning a fin area, a source region, and a drain region on a substrate, forming a fin in the fin area, and forming a mask in the fin area. The method further includes etching the mask to expose a channel area of the MOSFET, etching the fin to thin a width of the fin in the channel area, forming a gate over the fin, and forming contacts to the gate, the source region, and the drain region.
摘要:
A fully depleted SOI FET and methods of formation are disclosed. The FET includes a layer of semiconductor material disposed over an insulating layer, the insulating layer disposed over a semiconductor substrate. A source, a drain and a body disposed between the source and the drain are formed from the layer of semiconductor material. The layer of semiconductor material is etched such that a thickness of the body is less than a thickness of the source and the drain and such that a recess is formed in the layer of semiconductor material over the body. A gate is formed at least in part in the recess. The gate defines a channel in the body and includes a gate electrode spaced apart from the body by a high-K gate dielectric.
摘要:
A semiconductor structure includes a fin and a layer formed on the fin. The fin includes a first crystalline material having a rectangular cross section and a number of surfaces. The layer is formed on the surfaces and includes a second crystalline material. The first crystalline material has a different lattice constant than the second crystalline material to induce tensile strain within the first layer.
摘要:
A self-aligned transistor and method making a self-aligned transistor, the transistor including a first silicon portion on an isolation layer, the silicon portion having formed therein a source region and a drain region separated by a channel region. The channel region has a first side and a second side and a top portion, and a gate oxide surrounds the channel on said first side, second side and top portion. A first, a second and a third silicon gate regions are positioned in a second silicon portion surrounding the first silicon portion about the first side, second side and top portion and the channel region.
摘要:
A method of fabricating a trench on an integrated circuit having first and second insulative layers includes providing a layer of material over the insulative layers; forming a first self-assembled monolayer on the layer of material; etching the first self-assembled monolayer to form an aperture in the layer of material; etching the first insulative layer through the first aperture, wherein a top surface of the second insulative layer is exposed; depositing a spacer layer over the layer of material, wherein a portion of the spacer layer masks a portion of the top surface of the second insulative layer; and etching the second insulative layer.
摘要:
A method of patterning a layer of copper on a material surface includes providing a stamp having a base and a stamping surface and providing a copper plating catalyst on the stamping surface. The method can also include applying the stamping surface to the material surface, wherein a pattern of copper plating catalyst is applied to the material surface. The method can further include providing a copper solution over the copper plating catalyst, whereby a layer of copper is patterned on the material surface.
摘要:
When Tilted Channel Implant (TCI) is performed on transistor precursor structures having an etch-defined gate length (L2M) and a trim-defined sidewall thickness (SwM), mass production deviations may cause errors and cause shifts in the lateral placement and implant depth of TCI dopants. Countering adjustments to TCI dosage and TCI energy are automatically made in accordance with the invention. In one embodiment, a first linear or quasi-linear interpolation function is used having form: Energya=E0*(1+&bgr;*eSw/SwT), where multiplying factor &bgr; may either be a constant or a function of normalized sidewall error value, eSw/SwT. In the same embodiment, a second linear or quasi-linear interpolation function is used having form: Dosea=Dose0*(1+&agr;(L2T−L2M)/L2T), where multiplying factor &agr; is a constant or a function of normalized gate length error value, (L2T−L2M)/L2T.
摘要:
In a method of forming a metal gate of a semiconductor device, a substrate is provided, which includes a substrate body covered by a dielectric layer. A metal body having top and side surface is provided on the dielectric layer. A self-assembled monolayer is provided over the top and side surfaces of the metal body, and has an ordered region covering the top surface of the metal body and disordered regions covering the side surfaces of the metal body. The resulting structure is etched, the disordered regions of the self-assembled monolayer allowing etching of the side surfaces of the metal body while the ordered region of the self-assembled monolayer substantially blocks etching of the top surface of the metal body.