摘要:
Disclosed herein is an earphone protection device. The earphone protection device includes a pair of earphone covers and a pair of adjustment cables. An outer first space and an inner second space are formed inside each of the earphone covers. The first space provides a path adapted to guide earphones through accommodation, and also provides a coupling structure so that the earphone covers are assembled together M and closed after the earphones have been accommodated inside the earphone covers.
摘要:
In one embodiment, a semiconductor package may include a semiconductor chip having a chip pad formed on a first surface thereof, a sealing member for sealing the semiconductor chip and exposing the first surface of the semiconductor chip, a conductive wiring overlying a part of the first surface of the semiconductor chip and directly contacting a part of an upper surface of the sealing member. The conductive wiring further contacts the pad. The semiconductor package may also include an encapsulant covering the conductive wiring and having openings for exposing parts of the conductive wiring.
摘要:
In one embodiment, a semiconductor package may include a semiconductor chip having a chip pad formed on a first surface thereof, a sealing member for sealing the semiconductor chip and exposing the first surface of the semiconductor chip, a conductive wiring overlying a part of the first surface of the semiconductor chip and directly contacting a part of an upper surface of the sealing member. The conductive wiring further contacts the pad. The semiconductor package may also include an encapsulant covering the conductive wiring and having openings for exposing parts of the conductive wiring.
摘要:
A method of interconnecting semiconductor devices by using capillary motion, thereby simplifying fabricating operations, reducing fabricating costs, and simultaneously filling of through-silicon-vias (TSVs) and interconnecting semiconductor devices. The method includes preparing a first semiconductor device in which first TSVs are formed, positioning solder balls respectively on the first TSVs, performing a back-lap operation on the first semiconductor device, positioning a second semiconductor device, in which second TSVs are formed, above the first semiconductor device on which the solder balls are positioned, and performing a reflow operation such that the solder balls fill the first and second TSVs due to capillary motion.
摘要:
A mounting substrate includes a substrate, a bonding pad and an induction heating pad. The bonding pad is formed on the substrate, and adhered to a solder ball to mount a semiconductor chip on the substrate. The induction heating pad is disposed adjacent to the bonding pad, the induction heating pad being induction heated by an applied alternating magnetic field to reflow the solder ball. The induction heating pad having a diameter greater than a skin depth in response to the frequency of the applied alternating magnetic field is selectively induction heated in response to a low frequency band of the alternating magnetic field. Accordingly, during a reflow process for a solder ball, the semiconductor chip may be mounted on the mounting substrate to complete a semiconductor package without damaging the mounting substrate, to thereby improve the reliability of the completed semiconductor package.
摘要:
Provided are a semiconductor package having molded balls on a bottom surface of a PCB and a method of manufacturing the semiconductor package. The semiconductor package includes: a semiconductor chip mounting member comprising circuit patterns on a first surface, an insulating layer defining openings exposing at least portions of the circuit patterns, and external contact terminals arranged on the portions of circuit patterns exposed by the openings; a semiconductor chip formed on a second surface of the semiconductor chip mounting member and electrically connected to the semiconductor chip mounting member; a first sealing portion coating the second surface of the semiconductor chip mounting member and the semiconductor chip; and a second sealing portion arranged on the insulating layer and the external contact terminals such that at least portions of the external contact terminals are exposed.
摘要:
Provided is a printed circuit board having a bump interconnection structure that improves reliability between interconnection layers. Also provided is a method of fabricating the printed circuit board and semiconductor package using the printed circuit board. According to one embodiment, the printed circuit board includes a plurality of bumps formed on a resin layer between a first interconnection layer and a second interconnection layer. The second interconnection layer includes insertion holes corresponding to upper portions of the bumps so that the upper portions of the bumps protrude from the second interconnection layer. The upper portion of at least one of the bumps includes a rivet portion having a diameter greater that the diameter of the corresponding insertion hole to reliably interconnect the first and second interconnection layers.
摘要:
Provided are a semiconductor package and a method of fabricating the same. The semiconductor package includes a semiconductor chip, and a plurality of conductive balls, e.g., solder balls formed on a joint surface of the semiconductor chip. A dummy board includes openings aligned with the solder balls and is bonded to the joint surface of the semiconductor chip. An adhesive material is interposed between the semiconductor chip and the dummy board to adhere the dummy board to the semiconductor chip. The adhesive material is applied on an adhesion surface of the dummy board adhered to a joint surface of the semiconductor chip. The dummy board is adhered to the joint surface of the semiconductor chip such that the solder balls are aligned with the openings. Cheap underfill materials can be selectively used, and a process time for reflow and curing of the adhesive material can be greatly reduced.
摘要:
A herb medicine extract-containing non-bleeding striped dentifrice composition, consisting essentially of a striped dentifrice component and a base dentifrice component, each component comprising the following ingredients at the substantially same amount: a. an abrasive that has a BET surface area of 10 m.sup.2 /g or less and an average particle diameter of 1 to 30 .mu.m upon measurement by Coulter Counter method, and shows oil absorption (linseed oil, ml/100 g) of 50 or less; b. a binder selected from the group consisting of xanthan gum, carrageenan, sodium carboxymethylcellulose, and the mixtures thereof; c. an alkyl sulfonate of anionic surfactants; and d. a humectant, and said striped dentifrice component containing herb medicine extracts at an amount of 0.001 to 10% by weight, on the basis of dry solid substance. It is non-bleeding by virtue of the substantially same formulation in the two components and the herb medicine extracts allow the dentifrice composition to suppress the formation of plaque.
摘要:
In one embodiment, a semiconductor package may include a semiconductor chip having a chip pad formed on a first surface thereof, a sealing member for sealing the semiconductor chip and exposing the first surface of the semiconductor chip, a conductive wiring overlying a part of the first surface of the semiconductor chip and directly contacting a part of an upper surface of the sealing member. The conductive wiring further contacts the pad. The semiconductor package may also include an encapsulant covering the conductive wiring and having openings for exposing parts of the conductive wiring.