Abstract:
An integrated circuit apparatus including a body; a transistor formed on a first portion of the body, the transistor including a gate stack and a channel defined in the body between a source and a drain; and a plug formed in a second portion of the body, the plug including a material operable to impart a stress on the first portion of the body. A method of forming an integrated circuit device including forming a transistor body on a substrate; forming a transistor device in a first portion of the transistor body on a first side of the substrate; and dividing the transistor body into at least the first portion and a second portion with a plug in the transistor body, the plug including a material operable to impart a stress on the first portion of the body, wherein the material is introduced through a second side of the substrate.
Abstract:
In a particular aspect, an integrated circuit includes a first gate structure coupled to a first fin field effect transistor (FinFET) device. The integrated circuit includes a second gate structure coupled to a second FinFET device. The first gate structure and the second gate structure are separated by a dielectric region. The integrated circuit further includes a metal contact having a first surface that is in contact with the dielectric region, the first gate structure, and the second gate structure.
Abstract:
Methods and apparatus for forming FinFET structures are provided. Selective etching and deposition processes described herein may provide for FinFET manufacturing without the utilization of multiple patterning processes. Embodiments described herein also provide for fin material manufacturing methods for transitioning from silicon to III-V materials while maintaining acceptable crystal lattice orientations of the various materials utilized. Further embodiments provide etching apparatus which may be utilized to perform the methods described herein.
Abstract:
Non-planar I/O and logic semiconductor devices having different workfunctions on common substrates and methods of fabricating non-planar I/O and logic semiconductor devices having different workfunctions on common substrates are described. For example, a semiconductor structure includes a first semiconductor device disposed above a substrate. The first semiconductor device has a conductivity type and includes a gate electrode having a first workfunction. The semiconductor structure also includes a second semiconductor device disposed above the substrate. The second semiconductor device has the conductivity type and includes a gate electrode having a second, different, workfunction.
Abstract:
A method is performed on a silicon-on-insulator (SOI) wafer formed of a substrate, a bottom oxide layer on the substrate and an active silicon layer on the bottom oxide layer, where the active silicon layer has a surface opposite the bottom oxide layer. The method includes forming a first mask over the surface at a first portion of the wafer and leaving a second portion of the wafer unmasked, etching the wafer at the unmasked second portion of the wafer to form a depression in the active silicon layer, the depression having a bottom, forming a thermal oxide layer substantially filling the depression, removing the first mask, and forming fins at the first and second portions of the wafer.
Abstract:
A method of forming a FinFET structure (200) having a metal-insulator-metal capacitor. Silicon fins (206) are formed on a semiconductor substrate (202, 204) followed by formation of the metal-insulator-metal capacitor on the silicon fins (206) by depositing sequential layers of a first layer of titanium nitride (208), a dielectric layer (21 0) and a second layer of titanium nitride (212). A polysilicon layer (214) is deposited over the metal-insulator-metal capacitor layers (208, 210, 212) followed by etching back the polysilicon layer (214) and the metal-insulator-metal capacitor layers (208, 21 0, 212) from ends of the silicon fins (206) so that the first and second ends of the silicon fins (206) protrude from the polysilicon layer (214).
Abstract:
FinFET structures and fabrication methods having dielectric fins. A gas cluster ion beam applies an ion beam to exposed fins, which converts the fins from a semiconductor material to a dielectric such as silicon nitride or silicon oxide. Unlike the prior art, where fins are removed prior to fin merging, in embodiments of the invention, fins are not removed. Instead, semiconductor fins are converted to dielectric (nitride/oxide) fins where it is desirable to have isolation between groups of fins that comprise various finFET devices on an integrated circuit. The semiconductor structure (100) includes a semiconductor substrate (102); an insulator layer (104) on the substrate (102); a plurality of fins (106) disposed on the insulator layer (104); wherein a first subset of the plurality of fins (506A) are comprised of a semiconductor material (516) and wherein a second subset of the plurality of fins are comprised of a dielectric material (514).
Abstract:
Trench-confined selective epitaxial growth process in which epitaxial growth of a semiconductor device layer proceeds within the confines of a trench. In embodiments, a trench is fabricated to include a pristine, planar semiconductor seeding surface disposed at the bottom of the trench. Semiconductor regions around the seeding surface may be recessed relative to the seeding surface with Isolation dielectric disposed there on to surround the semiconductor seeding layer and form the trench. In embodiments to form the trench, a sacrificial hardmask fin may be covered in dielectric which is then planarized to expose the hardmask fin, which is then removed to expose the seeding surface. A semiconductor device layer is formed from the seeding surface through selective heteroepitaxy. In embodiments, non-planar devices are formed from the semiconductor device layer by recessing a top surface of the isolation dielectric. In embodiments, non-planar devices CMOS devices having high carrier mobility may be made from the semiconductor device layer.