摘要:
A method of fabricating a WDM unit consists of attaching a first and a second GRIN lenses to opposite faces of a WDM filter. A dual fiber pigtail and a single fiber pigtail are mounted in corresponding glass tubes. The glass tube with the dual fiber pigtail and the glass tube with the single fiber pigtail are mounted on the second GRIN lens and the first GRIN lens respectively. The position of the dual fiber pigtail and the single fiber pigtail are adjusted with respect to the second GRIN lens and the first GRIN lens respectively to obtain the best optical property. The invention prevents the WDM filter from tilting during temperature variation by sandwiching the WDM filter in between the two GRIN lenses, and further prevents the WDM unit from increasing the reflection loss and insertion loss.
摘要:
A fiber container receiving optical fibers has a body, a space defined in the body, a reel disposed inside the body, wherein a groove is defined around the periphery of the reel. The optical fibers are twisted around the reel and received in the groove. Furthermore, the fiber container is able to apply to the active/passive optical communication device, such as an erbium doped fiber amplifier (EDFA) or a dense wavelength division multiplexer (DWDM).
摘要:
A highly reliable optical add/drop device is described. The optical add/drop device has an external tube and a ring, wherein the external tube and the ring are made of metallic material. A WDM filter is fixed in the ring. The ring is inserted in the external tube at the middle portion and fixed therein by soft solder technique. A single fiber collimator and a dual fiber collimator are respectively coupled with the opposite surfaces of the filter, and aligned in the external tube. Additionally, the single and dual fiber collimators are also fixed therein by soft solder technique, as two metal tubes respectively hold the single and dual fiber collimators. In the invention, the WDM filter is rigidly fixed to avoid tilting during temperature variation. Moreover, the invention provides an optical add/drop device with low insertion loss and reflection loss.
摘要:
A semiconductor package includes a semiconductor structure. The semiconductor structure includes a plurality of dielectric layers and a plurality of conductive interconnects embedded in the semiconductor structure. The semiconductor structure also includes a plurality of proximity communication signal input terminals. At least one of the plurality of proximity communication signal input terminals includes a first electrode and a second electrode. The first electrode and the second electrode are spaced apart so as to be configured to provide proximity communication through capacitive coupling. The first electrode is exposed proximate to a surface of the semiconductor structure.
摘要:
The present invention relates to an apparatus and a method for testing non-contact pads of a semiconductor device to be tested. The apparatus includes an insulating body, at least one testing module and a plurality of probes. The insulating body includes an accommodating cavity, a lower opening and at least one side opening. The side opening communicates with the accommodating cavity and the lower opening. The testing module is disposed in the side opening, and each testing module includes a circuit board and an active chip. The active chip is disposed on and electrically connected to the circuit board. The active chip has a plurality of testing pads exposed to the accommodating cavity. The probes are disposed in the lower opening. Whereby, the non-contact pads of the semiconductor device to be tested face but not in physically contact with the testing pads of the active chip, so as to test the proximity communication between the non-contact pads of the semiconductor device and the testing pads of the active chip.
摘要:
A semiconductor device package and a method of fabricating the same are provided. The semiconductor device package includes a substrate, a first chip, a jumper chip, a plurality of first bonding wires and a plurality of second bonding wires. The substrate has a plurality of contact pads. The first chip is disposed and electrically connected to the substrate via the first bonding wires. The jumper chip is disposed on the first chip and has a plurality of metal pads. Each of the metal pads is electrically connected to two contact pads of the substrate via two second bonding wires, respectively.
摘要:
A distance-measuring apparatus is disclosed. The distance-measuring apparatus includes: an emitter, emitting a light to be measured toward a target, a receiver, receiving a reflected emitted light; a reflector, reflecting the emitted light to the receiver; a condensing lens, condensing the reflected emitted light, reflected by the target to the reflector; a driving module, adjusting the inclination angle of the reflector; and a control unit, controlling the driving module to rotate according to a result of comparing the intensity of the emitted light received by the receiver and a predetermined value.
摘要:
A package structure and a manufacturing method thereof are provided. The package structure includes a carrier, a chip-bonding structure and a chip. The chip-bonding structure is formed on a first surface of the carrier. The chip-bonding structure includes a cavity, a dam, several via holes and several solder bumps. The solder bumps are received in the via holes and are correspond to the first connecting pads located on the carrier. The chip is embedded in the cavity of the chip-bonding structure. An active surface of the chip is tightly pasted on the first surface of the chip-bonding structure, and the first solder pads form electrical contact with the corresponding solder bumps. The chip of the package structure is precisely disposed on the carrier, not only simplifying the manufacturing process but also forming stable electrical connection between the chip and the carrier of the package structure.
摘要:
The present invention relates to a package structure compatible with a cooling system, the package structure comprising a carrier, a chip, a mold compound and a cooling tubule that can be connected to a cooling system. The chip is arranged on the carrier and electrically connected to the carrier, while the mold compound covers the chip and one surface of the carrier. The cooling tubule is disposed either within the mold compound or on an outer surface of the mold compound. The cooling tubule is connected to a cooling tubing of the cooling system and a fluid driven by a pump circulates in the cooling tubing and the cooling tubule for heat dissipation.
摘要:
The present invention relates to a semiconductor package having at least one first layer chip, a plurality of first metal bumps, at least one second layer chip and a package body. The first layer chip includes a first active surface upon which the first metal bumps are disposed and a plurality of first signal coupling pads disposed adjacent to the first active surface. The second layer chip is electrically connected to the first layer chip, and includes a second active surface that faces the first active surface and a plurality of second signal coupling pads. The second signal coupling pads are capacitively coupled to the first signal coupling pads so as to provide proximity communication between the first layer chip and the second layer chip. The package body encapsulates the first layer chip, the first metal bumps, and the second layer chip, and the first metal bumps are partially exposed.