摘要:
An optical device package includes a substrate; an optical fiber, a frame, and optionally a lid and an optical semiconductor component. The upper surface of the frame includes conductive visa extending vertically to solder balls on its upper surface. Conductive traces along the surface of the substrate provide electrical communication between the optical semiconductor component and the frame. The optical device package is adapted for flip-chip type mounting to a circuit board or other mounting surface.
摘要:
The present invention provides an optical switch. The switch includes a substrate and a first waveguide holding member. The switch also includes a second waveguide holding member disposed over the substrate and movable relative to the first waveguide holding member to provide a switching function. A movement guiding member is provided for guiding the movement of the second waveguide holding member. A registration element is disposed at the movement guiding member for positioning the second waveguide holding member at a selected location relative to the first waveguide holding member. The selected location is one that provides alignment between a selected waveguide of the first waveguide holding member and a selected waveguide of the second waveguide holding member.
摘要:
An optical microwave package eliminates launching electrical modes into a microwave strip-line by forming a moat in a housing portion of the package to suppress microwave resonant energy. The moat can be filled with a conductive material to further suppress package resonances. Additionally, the bottom of a substrate positioned within the housing is isolated from any conductive metal to further suppress microwave resonant energy.
摘要:
A process is provided for the formation of a thin film of gate dielectric or similar material on a silicon semiconductor substrate from an organic precursor by atomic layer epitaxy, wherein the organic precursor is introduced to react with the treated surface to form a bonded monolayer of reactive species. A second reactant is introduced to react with the surface to form the desired dielectric. After each step in the cycle, the reaction chamber is purged with an inert gas to prevent reactions except on the surface. The cycle is repeated tens to hundreds of times to achieve a desired final film thickness. No less frequently than every third cycle, the film undergoes a discrete treatment step wherein ozone is introduced into the chamber to oxidize carbon contaminants therein to form volatile products which are removed from the reaction chamber by purging with the inert gas. In a preferred embodiment where the substrate is silicon or polysilicon, a sub-monolayer of a protection material is formed by boding to silicon sites on the surface before the deposition of dielectric is begun. A preferred dielectric is gate aluminum oxide that is deposited using trimethyl aluminum as a precursor.
摘要:
An optical packaging arrangement is disclosed which utilizes silicon technology and overmolding techniques to provide a single in-line package with completely passive alignment between the various optical components. The technique as disclosed is useful in the packaging of a single active optical device and associated electronics, a pair of optical devices and electronics (transceiver), or an array of any desired number of such components. Since the silicon may be processed to include etched alignment fiducials and metallized bond pad sites, solder bump self-alignment and silicon optical bench technology may be used to provide for alignment between the active device, coupling lens and associated optical fiber.
摘要:
An optical subassembly is disclosed which provides self-alignment between an active optical device and associated optical elements. In particular, the subassembly comprises a first substrate member which is utilized to support the active optical device. A separate plurality of substrate members is used to form a support for the associated optical elements (i.e., fiber, coupling lens or both), where the separate members are stacked, one on top of the other, and an aperture through the center thereof utilized to support the optical elements. The aperture may be formed to include a mechanical stop suitable for fixing the location of an optical fiber endface. Alignment fiducials formed on the device support member and the stack provide self-alignment therebetween, as well as physical attachment of the support member to the stack. The various substrate members may comprise any suitable material including, but not limited to, silicon, metal, or molded plastic.