Abstract:
High quality epitaxial layers of compound semiconductor materials can be grown overlying large silicon wafers by first growing an accommodating buffer layer on a silicon wafer. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline compound semiconductor layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. A composite integrated circuit having a tunable laser is provided. The laser may be mode-locked. Injection-locking may be used to pass optical properties to a slave laser. An array of lasers may provide different optical outputs into one or more waveguides.
Abstract:
High quality epitaxial layers of monocrystalline materials can be grown overlying a monocrystalline substrate of a semiconductor structure by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. An optical waveguide is formed in a monocrystalline layer grown on the semiconductor structure for distributing an optical signal to a selected portion of circuitry formed in the semiconductor structure. An optical source is formed in the semiconductor structure and coupled to the optical waveguide for generating a control signal and a data signal concurrently. The control signal propagates through the optical waveguide faster than the data signal to create a delay between the control signal and the data signal. An optical switch receives the control signal and switches the delayed data signal to a selected portion of circuitry formed in the semiconductor structure in response to the control signal.
Abstract:
High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. In addition, formation of a compliant substrate may include utilizing surfactant enhanced epitaxy, epitaxial growth of single crystal silicon onto single crystal oxide, and epitaxial growth of Zintl phase materials. A wavelength locker for stabilizing a wavelength of an optical output signal from an optical transmitter is formed overlying the silicon wafer.
Abstract:
An apparatus for effecting conversion between communication signals in a first signal-form and in a second signal-form includes: (a) a first circuit region arranged on a monocrystalline silicon substrate; (b) an amorphous oxide material overlying the first circuit region; (c) a monocrystalline perovskite oxide material overlying the amorphous oxide; (d) a second circuit region arranged a monocrystalline compound semiconductor material overlying the perovskite oxide; (e) a receiver established in the first circuit region for converting received input signals in the first signal-form into converted signals in the second signal-form provided at a transfer locus; and (f) a signal processor established in the second circuit region coupled with the transfer locus for processing received converted signals to present a formatted signal in the second signal-form at an output locus. The apparatus is implemented in a monolithic integrated structure arranged on a single monolithic silicon substrate.
Abstract:
High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. In addition, formation of a compliant substrate may include utilizing surfactant enhanced epitaxy, epitaxial growth of single crystal silicon onto single crystal oxide, and epitaxial growth of Zintl phase materials. An optical communication device for interactively communicating with other devices via optical communication signals (e.g., data, video, and/or audio) is formed overlying the silicon wafer.
Abstract:
A semiconductor structure includes an optical waveguide that supports concurrent transmission of redundant optical signals along multiple logical paths, and a semiconductor component that is selectively coupled through an optical interface to one of the optical signals in response to control electronics to provide equipment and path redundancies. Preferably, the semiconductor structure has a combination of compound semiconductor material and Group IV semiconductor material.
Abstract:
An optical output device (164) includes a moncrystalline silicon substrate (102) and multiple light sources (168a-168n) formed of compound semiconductor materials. An accommodating buffer layer (104) lies between the light sources (168a-168n) and the substrate (102). An optical interconnect (170), such as a waveguide, is formed over the multiple light sources (168a-168n) and connects them to an output port (172). The accommodating buffer layer (104) is a layer of monocrystalline oxide spaced apart from the silicon substrate (102) by an amorphous interface layer (106) of silicon oxide, and is lattice matched to both the underlying silicon substrate (102) and the waveguide (170). Any lattice mismatch between the accommodating buffer layer (104) and the underlying silicon substrate (102) is taken care of by the amorphous interface layer (106).
Abstract:
High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. In addition, formation of a compliant substrate may include utilizing surfactant enhanced epitaxy, epitaxial growth of single crystal silicon onto single crystal oxide, and epitaxial growth of Zintl phase materials. An optical transmitter for stably providing an optical signal at an operating wavelength is formed overlying the silicon wafer.