摘要:
A semiconductor chip for a tape automated bonding (TAB) package is disclosed. The semiconductor chip comprises a connection surface including a set of input pads connected to internal circuitry of the chip and for conveying external signals to the internal circuitry, the set of input pads comprising all of the input pads on the chip. The connection surface includes a set of output pads connected to internal circuitry of the chip and for conveying internal chip signals to outside the chip, the set of output pads comprising all of the output pads on the chip.
摘要:
An electronic device package includes a substrate assembly, an electronic device disposed to face the substrate assembly, and a sealing ring or rings including a sealing layer and a bonding layer that is disposed between the substrate assembly and the electronic device, wherein the sealing ring(s) has a closed loop shape surrounding a sealing region of the electronic device, and the bonding layer is formed through a reaction of the sealing layer and sealing layer pad with a low-melting-point material layer whose melting point is lower than that of the sealing layer and sealing ring pad. The bonding layer is formed of an intermetallic compound of the sealing layer, sealing ring pad and low-melting-point material that melts at a temperature greater than the melting temperature of the low-melting-point material. The device package also includes electrical connections in the form of joints between the substrate assembly and electronic device.
摘要:
A steel composite beam is manufactured by T-shaped steel, inverse T-shaped steels installed at opposite ends of the T-shaped steel, and vertical stiffeners installed on the inverse T-shaped steels. A method for manufacturing a composite beam using T-shaped steel and a method of constructing a structure using the same are capable of using less steel and minimizing dead weight of the composite beam compared to a steel composite beam having the same cross section and depth, and designing a cross section of the composite beam in an efficient and economical manner due to the pre-stress caused by tendons, providing easy connection with column members on the basis of length, providing efficient construction, easy management, and convenient construction for ceilings and finishing equipment due to light dead weight.
摘要:
A solar cell module having a reduced thickness using a flip-chip approach includes a transparent substrate, a transparent electrode interconnection disposed on the transparent substrate, and a plurality of solar cells disposed on the transparent electrode interconnection, each solar cell having at least one protrusion formed on one surface of the solar cell, the protrusion being bonded to the transparent electrode interconnection.
摘要:
A method of dynamically generating a user presentation includes selecting and retrieving at least one of a plurality of rules stored in one or more databases in response to a request from an application program, executing the rule to retrieve data from the one or more databases, and generating presentation data based on the data. The presentation data may be for use in the user presentation of the application program.
摘要:
A method for forming colloidal photonic crystals comprises; surrounding an outer circumference of a cylinder with a flexible substrate, spacing the cylinder a predetermined distance from a panel coated with a colloidal solution, and rotating the cylinder to form colloidal photonic crystals on the flexible panel.
摘要:
Disclosed is a chip-on-film (COF) type semiconductor package and a device using the same. The COF type semiconductor package may include an insulation substrate including a top surface and bottom surface, a semiconductor device on the top surface of the insulation substrate, a heat dissipating component on the bottom surface of the insulation substrate, and at least one space between the bottom surface of the insulation substrate and a top surface of the heat dissipating component.
摘要:
A semiconductor chip, a tape package of the chip and a tape wiring substrate of the chip may be configured so as to effectively radiate heat generated from the chip externally through certain wiring patterns connected to certain pads. In an example, the chip may include a plurality of input pads along at least one edge of an active surface. The input pads may include power pads and ground pads. The chip may include a plurality of output pads along edges of the active surface, outside of the input pads. The power pads and the ground pads may be located at a central area of the at least one edge.
摘要:
A method of fabricating a multi-layered PCB, in which the optical waveguide component is inserted into the PCB in such a way that a prepreg adhesive does not block an optical signal entrance of the optical waveguide. The method includes pre-routing a portion of an adhesive meeting the optical waveguide to remove the portion, processing an adhesive weeping prevention layer so as to prevent the adhesive from blocking the optical signal entrance of the optical waveguide, arranging the optical waveguide, the adhesive, and the adhesive weeping prevention layer on a copper clad laminate, and combining the optical waveguide, a prepreg, and the adhesive weeping prevention layer with each other into a single structure. The adhesive weeping prevention layer is selected from the group consisting of a prepreg, a single-sided copper clad laminate, a thermally curable resin, a heat spreader, and an unclad.
摘要:
Disclosed is an optical printed circuit board (PCB) for long-distance signal transmission, which is combined with fiber blocks and pipe blocks embedded in opto-via holes to form a multi-layered optical PCB, and transmits an optical signal using a fiber ribbon when an optical signal transmission distance between layers constituting the multi-layered optical PCB is longer than a length of an optical waveguide element used in conjunction with a silicon substrate. The optical PCB comprises a base substrate including an insulating material, a copper foil, and an opto-via hole, and an optical signal transmission member attached to the base substrate to horizontally transmit an optical signal. An optical signal connection member is horizontally connected to the optical signal transmission member to transmit the optical signal across a desired distance. Therefore, an optical PCB of the present invention is advantageous in that an optical waveguide, a pipe block, and a fiber block are horizontally and optionally arranged and attached to each other, thereby transmitting an optical signal across a longer distance than a length of a silicone substrate.