Korea Institute of Science and Technology

Korea Institute of Ceramic Eng. & Tech.

Hyo Tae Kim

Yoon H Kim

Gi Seok Song

Heung Soon Kim

Young Ho Roh

The present invention provides an LED array module having an improved heat-dissipating effect, and a manufacturing method thereof. To this end, an LED array module includes one or more LED unit modules, the LED unit module comprising: an LED; a heat conductive heat-dissipating slug attached to the lower portion of the LED; and leads connected to the cathode and anode of the LED, respectively, wherein the LED array module comprises: a heat-dissipating plate; a heat conductive solder layer disposed and bonded between the upper surface of the heat-dissipating plate and the lower surface of the heat-dissipating slug; a first insulating layer formed on the upper surface of the heat-dissipating plate; and array electrodes which are formed on the upper surface of the insulating layer and are electrically connected to the leads to drive the LED.

LED array module and manufacturing method thereof

A low-temperature sinterable dielectric composition with a high dielectric constant wherein x=2-4 mol %, y=0.5-3.0 mol % and z=3-5 mol % in [95PMN-5PT]-x(PbO)-y(CaO)-z(CuO).

Method of manufacturing a multi-layered ceramic capacitor

A low-temperature sintering temperature compensating microwave dielectric ceramic composition includes ZnTiO.sub.3 stoichiometrically combined with ZnO and TiO.sub.3, wherein Zn.sup.2+ of the ZnTiO.sub.3 is replaced with Mg.sup.2+ to produce (Zn.sub.1-X Mg.sub.X)TiO.sub.3 (X=0.02.about.0.5). The composite has a fine structure and improved dielectric property without a sintering agent.

Low-temperature sinterable temperature compensating microwave dielectric

An improved high frequency dielectric ceramic composition and a fabrication method thereof, which is sintered at a low temperature ranging from 900.degree. to 1250.degree. C. without using a sintering aid and which has a fine structure and excellent dielectric characteristics, which includes of TiO.sub.2 .multidot.x(ZnO) where 0.04.ltoreq.x.ltoreq.1.0.

High frequency dielectric ceramic composition and fabrication method

A low-temperature sinterable dielectric composition with a high dielectric constant is disclosed wherein x=2-4 mol %, y=0.5-3.0 mol % and z=3-5 mol % in �95PMN-5PT!-x(PbO)-y(CaO)-z(CuO).

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Seoul, South Korea

Hyo Tae Kim