摘要:
A package allowing both electrical and optical coupling between one or more integrated circuits and a printed circuit board (PCB) has optical waveguide structures in addition to electrical connections. An optically active device may be flip-bonded directly to an integrated circuit using solder bump technology. The integrated circuit then flip-bonded or wire-bonded to a BGA package. The package has alignment rails or balls and V-grooves to anchor the alignment rails/balls to align the BGA package to the PCB. The BGA package is bonded to the PCB using solder reflow technology.
摘要:
A package allowing both electrical and optical coupling between one or more integrated circuits and a printed circuit board (PCB) has an optical waveguide structure in addition to electrical connections. An optically active device is flip-chip bonded directly to an integrated circuit using solder bump technology. The optically active device has a lens directly attached to it to facilitate optical coupling to the optical waveguide. The integrated circuit is flip-chip bonded to a Ball Grid Array (BGA) package. The BGA package is bonded to the PCB using solder reflow technology.
摘要:
An integrated optoelectrical package for optoelectrical integrated circuits (ICs) is disclosed. The package includes a package substrate having contact receiving members on an upper surface. The contact receiving members are electrically connected to contacts on the lower surface. An optoelectronic receiver package and an optoelectronic transmitter package are each electrically mounted to respective first and second subsets of the contact receiving members. Input and output waveguide arrays are formed atop the substrate package and are optically coupled to the optoelectronic receiver package and the optoelectronic transmitter package, respectively. The contacts on the lower surface of the package substrate are designed to contact and engage the contact receiving members of a standard printed circuit board (PCB).
摘要:
A package allowing both electrical and optical coupling between one or more integrated circuits and a printed circuit board (PCB) has an optical waveguide structures in addition to electrical connections. An optically active device is flip-chip bonded directly to an integrated circuit using solder bump technology. The optically active device has a lens attached to it to facilitate optical coupling to the optical waveguide. The integrated circuit is flip-chip bonded to a Ball Grid Array (BGA) package. The BGA package is bonded to the PCB using solder reflow technology.
摘要:
A component for coupling light bi-directionally between optical waveguides and optoelectronic devices is described. This component can be inexpensively manufactured and fits within the existing form-factor of fiber optic transceivers or transmitters, and has features for efficiently coupling laser light to a waveguide and light from the same waveguide to a detector. The described components can be formed as an array to operate within system that operation over parallel optical fibers. Applicability for these components is for optical time domain reflectometry, bi-directional optical communications, remote fiber sensing, and optical range finders.
摘要:
Biasing methods and devices for power amplifiers are described. The described methods and devices use the power amplifier output voltage to generate bias voltages. The bias voltages are obtained using rectifiers and voltage dividers. The described biasing methods and devices can be used with class-E power amplifiers.
摘要:
A device structure and system for connecting optical waveguides to optical transmit and receive components is described. The structure is made of two parts. The lower part contains active optoelectronic components, such as lasers and photodetectors, and optical lenses. The lower part can be assembled by steps of aligning and bonding planar components. The upper part contains optical waveguides and lenses for coupling light into and out of the waveguides. The top part is mechanically connected to the lower part to form a mechanically sound connection. The lens system provides some tolerance to mis-alignment between the top and bottom parts. The system has features that enable fiber optic components to operate and survive in harsh environments, particularly large temperature extremes.
摘要:
A component for coupling light bi-directionally between optical waveguides and optoelectronic devices is described. This component can be inexpensively manufactured and fits within the existing form-factor of fiber optic transceivers or transmitters, and has features for efficiently coupling laser light to a waveguide and light from the same waveguide to a detector. The described components can be formed as an array to operate within system that operation over parallel optical fibers. Applicability for these components is for optical time domain reflectometry, bi-directional optical communications, remote fiber sensing, and optical range finders.
摘要:
A voltage-controlled oscillator includes an inductor capacitor (LC) tank; a drive circuit having a current source; and a feedback loop circuit. The feedback loop includes a peak detect circuit to generate a peak detect voltage; a reference voltage generator to generate a single reference voltage; and an operational amplifier, coupled to the peak detect circuit and the reference voltage generator, to generate an analog bias signal to adjust a current of the current source.
摘要:
In a method for bonding a silicon substrate to a III-V material substrate, a silicon substrate is contacted together with a III-V material substrate and the contacted substrates are annealed at a first temperature that is above ambient temperature, e.g., at a temperature of between about 150° C. and about 350° C. The silicon substrate is then thinned. This bonding process enables the fabrication of thick, strain-sensitive and defect-sensitive optoelectronic devices on the optimum substrate for such, namely, a thick III-V material substrate, while enabling the fabrication of silicon electronic devices in a thin silicon layer, resulting from the thinned Si substrate, that is sufficient for such fabrication but which has been thinned to eliminate thermally-induced stress in both the Si and III-V materials. The III-V material substrate thickness thereby provides the physical strength of the composite substrate structure, while the thinned silicon substrate minimizes stress in the composite structure.