摘要:
Disclosed is a diamond tool having a metal plate inserted therein. Between abrasive layers containing diamond particles is inserted a ferrous or non-ferrous metal plate having a wear resistance lower than that of the abrasive layers such that a concave groove is spontaneously formed during a cutting process, thereby reducing the contact load with a workpiece to thereby avoid vibration (wobbling) of a shank, and providing a discharge path for smoothly removing cutting chips and the cooling water. In addition, the content of abrasives and the wear resistance of bonding material are uniformly constituted so that the shrinkage rate does not need to be considered during sintering and the manufacturing process can be simplified, thereby reducing the manufacturing cost and improving the productivity therefor. Furthermore, the area of the metal plate can be controlled, thereby enabling an easy design conforming to the working conditions with a workpiece.
摘要:
An obstacle sensor includes a line light irradiating unit including a light-emitting unit, a light-emitting driving unit to drive the light-emitting unit, and a first conical mirror, an apex of which is disposed towards the light-emitting unit in a light irradiation direction of the light-emitting unit and which converts light emitted from the light-emitting unit into line light irradiated in all directions, and a reflected light receiving unit including a second conical mirror to condense light, that is irradiated from the first conical mirror and is then reflected from an obstacle, a lens, that is spaced from the apex of the second conical mirror by a predetermined distance and transmits the reflected light, an imaging unit to image the reflected light that passes through the lens, an image processing unit, and an obstacle sensing control unit.
摘要:
Disclosed herein is an implant device for osseointegration to endure weight. This implant device includes an insert-type implant inserted into an amputated end of a thighbone or a lower leg bone of a leg of a patient; a load dispersing adaptor having a cap shape, encompassing both the implant and the amputated end of the leg simultaneously at a lower end of the implant; a load support plate having a plate shape, coupled with the lower surface of the adaptor, whose diameter is widened, on which a plurality of muscle fixing holes are dispersedly formed; and a coupling screw, which couples the load dispersing adaptor with the insert-type implant at a bottom of the load dispersing plate through screw-coupling.
摘要:
Disclosed is a file-based grid MPI job allocation system for a middleware-based grid computing system in which computers having a plurality of resources including an MPI program are distributed and connected to each other through a network, wherein the grid MPI job allocation system differentiates functions of a middleware and the MPI program, thereby achieving MPI initialization without intervention of a separate arbitration process. The job submission service module generates a file containing an address, a port number, etc. of each node, which are necessary for the MPI initialization, and sends the file to the job execution service module of the corresponding node. Each job execution service module executes the MPI job, and the MPI program waits for the generation of the file and then performs initialization by using the information in the file. The present invention clearly differentiates the jobs to be done by the MPI program and by the job submission service module in the middleware, thereby enabling the MPI program to be executed in the grid computing system regardless of the design of the middleware.
摘要:
A Chip Scale Package (CSP) type unit package including a semiconductor chip and a double wiring substrate, the double wiring substrate including an adhesive and a flexible tape having an upper surface with a first wiring pattern, a lower surface with a second wiring pattern and a plurality of vias electrically connecting portions of the first and second wiring patterns. Additionally, the unit package may be stacked on a conventional base package or on another unit package, where stacked packages are electrically interconnected.
摘要:
According to various embodiments of the present invention, a bonding pad structure of a semiconductor device reduces damage caused by thermo-mechanical stress in beam lead bonding. A method of fabricating an improved bonding pad structure is also provided. A polysilicon film plate is preferably formed between a bonding pad metal layer and a dielectric layer. The polysilicon film plate absorbs external thermo-mechanical stress and improves the durability of the bonding pad in a bond pull test (BPT). The bonding between the bonding pad metal layer and the dielectric layer is also improved. Other features and advantages are also provided.
摘要:
A method for manufacturing a chip scale package (CSP) including a semiconductor chip and conductive bumps is disclosed. In the present invention, a flexible substrate is provided with a conductive pattern formed thereon. The substrate has a top surface and a bottom surface. Then, a first photosensitive resin pattern is formed over the top surface of the substrate. Next, the first photosensitive resin pattern is cured. Subsequently, a second photosensitive resin pattern is formed over the cured first photosensitive resin pattern. The second photosensitive resin pattern includes a slit comprising a bottom of the first photosensitive resin pattern and side walls of the second photosensitive resin pattern. With the present invention, the problem of burning of neighboring patterns as well as the problem of the overflow of the encapsulant can be overcome.
摘要:
Disclosed is a light emitting device including a light emitting structure comprising a first conductive type semiconductor layer, an active layer and a second conductive type semiconductor layer, a first electrode disposed on the first conductive type semiconductor layer, a second electrode disposed on the second conductivity type semiconductor layer, and a low temperature oxide film disposed on the light emitting structure, with an irregular thickness.
摘要:
Provided are a semiconductor package having connection terminals whose side surfaces are exposed and a semiconductor module including such a semiconductor package. Also provided are methods of fabricating the semiconductor package and semiconductor module. According to an embodiment of the present invention, a semiconductor package includes a semiconductor chip including a semiconductor wafer having first and second opposite surfaces and a plurality of conductive pads arranged in a row on the first surface along the edges of the semiconductor wafer such that a side surface of each conductive pad is exposed. An insulating layer is formed on the first surface of the semiconductor wafer and includes openings for exposing parts of the conductive pads. A plurality of connection terminals are respectively arranged on the conductive pads exposed through the openings and a reinforcing member is arranged on the insulating layer to cover a portion of each connection terminal.
摘要:
A water-based cutting fluid includes a water-soluble polymer dissolved in water and ceramic powder dispersed in the water. The cutting fluid further includes water glass. Further, the water-soluble polymer is one selected from a group consisting of polyvinyl alcohol (PVA), cellulose, methyl cellulose, carboxymethyl cellulose (CMC), starch, or a combination thereof.