摘要:
The present embodiments relate to organic metal compounds in which compounds for host and compounds for dopant are connected, organic electroluminescence display devices using the compounds and a method for preparation of the devices. More precisely, the present embodiments relate to organic metal compounds in which compounds for host and compounds for dopant were connected to make energy transmission between host and dopant possible in a molecular level, organic electroluminescence display devices using the same and a preparation method thereof. And, the organic metal compound of the present embodiments has the structure having the connection of the compounds for host and the compounds for dopant, so that its solubility can be remarkably increased owing to the increased molecular weight. Thus, a wet process such as spin coating can be applied for the preparation of the device.
摘要:
The present embodiments relate to organic metal compounds in which compounds for host and compounds for dopant are connected, organic electroluminescence display devices using the compounds and a method for preparation of the devices. More precisely, the present embodiments relate to organic metal compounds in which the compounds for host and the compounds for dopant are connected to make energy transmission between host and dopant possible in a molecular level, organic electroluminescence display devices using the same and a preparation method thereof. The organic metal compound of the present embodiments can be effectively used as a coloring material of photoluminescence device since it has low molecular level emitting property. Moreover, the photoluminescence device prepared by using the organic metal compound of the present embodiments has enhanced emitting efficiency, brightness, color purity and lifetime.
摘要:
In a method chips are provided with solder balls as of a ball grid array directly without any substrate thereby forming a BGA device. The inventive BGA device is protected on its active side by a protective layer made of solder resist or other equivalent materials and the solder balls on the contact pads of the die are suitable to be connected to an other assembly directly.
摘要:
There is provided an air inlet structure of a laundry dryer. In the air inlet structure, a base defines an air inlet, a front cabinet is disposed in front of the base and defines a suction hole to pass ambient air into the base, a cooling fan is stably disposed in the base to suck the ambient air, a blower tube forms a flow passage for the ambient air, a blower cover is fixed to the base to connect the blower tube and the cooling fan, and an air guide is disposed between the base and the blower cover, the air guide having a shroud at a center portion.
摘要:
A drum for use in a dryer is provided. The drum includes a plurality of segments joined axially to form the drum's cylindrical shape. The drum has a simple structure enabling the use of standardized segments to facilitate dryer manufacture by reducing production costs, increasing productivity, and reducing failure rates. The drum, which has a cylindrical shape, is composed of a plurality of segments, preferably, three, each arranged axially with respect to the axis of the drum. The drum includes a coupling mechanism, provided on each side edge of each segment, for joining the segments to form the cylindrical shape of the drum.
摘要:
A compact pipe specimen applicable to a fracture toughness test used to evaluate physical properties of a pipe material is provided. The compact pipe specimen includes: a pipe having a notch portion formed in a circumferential direction and a crack portion formed at the edge of the notch portion; and first and second jigs having openings to which a pressurizing unit is coupled so as to cause a bending load on the pipe, having the notch portion therebetween, and attached to the exterior surface of the pipe, respectively. It is unnecessary to correct the influence of a constraint effect due to varying sizes and shapes of the specimen. There is no restriction to the curvature and thickness of a pipe. A fracture behavior of a pipe crack portion can be precisely simulated.
摘要:
An anti-warp heat spreader for semiconductor devices is disclosed, wherein the heat spreader is made of a metal sheet of substantially constant thickness, the metal sheet being perforated by at least one opening to allow for the percolation of an adhesive or a resin. The heat spreader is designed to strengthen the package by providing a strong bond between its components, i.e., the circuit board, die, heat spreader and reinforcing frame. At the same time the heat generated by the die during operation is efficiently dissipated. The heat spreader can easily be attached to the die by positioning it in the mold used to produce the reinforcing frame and then fill the mold with a mold compound. The mold compound will easily flow through the opening or openings, thereby filling the gap between the heat spreader and the die. The mold compound replaces the air that escapes from the gap through the opening or openings. Thus, a strong and intense connection between the die and the heat spreader is constituted. The bonding layer underneath the heat spreader and the reinforcing frame above the heat spreader are firmly. interconnected through the opening or openings.
摘要:
A substrate for producing a soldering connection to a second substrate is disclosed. Soldering pads are distributed on the substrate surface. Solder balls can be applied to these pads. A soldering pad has a top side area and side areas connected to a conductor track. A soldering mask with openings in the region of the soldering pads is applied to the substrate. A soldering pad is provided with holding mechanism for the solder balls in such a way that, within the top side area of the soldering pad, a depression is introduced in the direction of the substrate or an elevation rising above the top side area is applied.
摘要:
A laundry separator for compartmentalized drying is loaded in the drum of a dryer, or in the drum of a washer having a drying function, as an accessory enabling simultaneous drying of laundry sorted according to type, color, and so on. The laundry separator for compartmentalized drying, includes at least one divider for detachable installation in a drum for drying laundry, wherein the at least one divider partitions an inner space of the drum into a plurality of spaces.
摘要:
Provided are a method and system for verifying a protein-protein interaction according to a text mining method. The method includes extracting protein-protein interaction information from protein-related documents searched for from a bio-information document database, according to a text mining method, mapping the protein-protein interaction information to corresponding ontology identifications, and filtering the mapped protein-protein interaction information according to a frequency of the information and an impact factor of a corresponding protein-related document in order to obtain highly-weighted information.