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| 20100327288 | TRENCH SCHOTTKY DIODE AND METHOD FOR MANUFACTURING THE SAME - A trench Schottky diode and its manufacturing method are provided. The trench Schottky diode includes a semiconductor substrate having therein a plurality of trenches, a gate oxide layer, a polysilicon structure, a guard ring and an electrode. At first, the trenches are formed in the semiconductor substrate by an etching step. Then, the gate oxide layer and the polysilicon structure are formed in the trenches and protrude above a surface of the semiconductor substrate. The guard ring is formed to cover a portion of the resultant structure. At last, the electrode is formed above the guard ring and the other portion not covered by the guard ring. The protruding gate oxide layer and the protruding polysilicon structure can avoid cracks occurring in the trench structure. | 12-30-2010 |
| 20110084353 | TRENCH SCHOTTKY RECTIFIER DEVICE AND METHOD FOR MANUFACTURING THE SAME - A trench Schottky rectifier device includes a substrate having a first conductivity type, a plurality of trenches formed in the substrate, and an insulating layer formed on sidewalls of the trenches. The trenches are filled with conductive structure. There is an electrode overlying the conductive structure and the substrate, and thus a Schottky contact forms between the electrode and the substrate. A plurality of embedded doped regions having a second conductivity type are formed in the substrate and located under the trenches. Each doped region and the substrate form a PN junction to pinch off current flowing toward the Schottky contact so as to suppress current leakage. | 04-14-2011 |
| 20110306725 | VARNISH COMPOSITION WITH HIGH TEMPERATURE OF GLASS TRANSITION FOR GLASS FIBER LAMINATE - A varnish composition includes (1) a benzoxazine resin having highly symmetric molecular structure; (2) at least one of naphthol type novolac resins, aniline type novolac resins and phenolic type novolac resins; (3) fillers. The benzoxazine resin having highly symmetric molecular structure, and the at least one of naphthol type novolac resins, aniline type novolac resins and phenolic type novolac resins contribute to increase the temperature of glass transition of the varnish composition, while decrease the coefficient of thermal expansion and moisture absorbability due to their small and highly symmetric molecular structures. A copper substrate can meet the requirement of high temperature of glass transition (TMA≧200° C.) and low coefficient of thermal expansion (α1/α≦30/1350(μm/(m° C.). Therefore, the composition of the invention can be widely used as high-performance electronic material. | 12-15-2011 |
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| 20080297735 | LAMP DRIVING METHOD - A lamp driving method for a projection apparatus is provided. The projection apparatus has a light valve and a lamp. The lamp driving method includes adjusting a brightness of the lamp to different values according to multiple states of the light valve. The lamp driving method improves the energy efficiency of the projection apparatus. | 12-04-2008 |
| 20080304015 | COLOR FILTERING DEVICE - A color filtering device including a color filter, a plurality of polarization beam splitting units, a plurality of reflecting units, and a plurality of wave plates is provided. The color filter has a plurality of filtering parts and a plurality of light shielding parts alternately arranged thereon. Each of the polarization beam splitting units is disposed in front of one of the filtering parts and makes an angle with a corresponding filtering part. Each of the reflecting units is disposed in front of one of the light shielding parts and makes an angle with a corresponding light shielding part. Each of the wave plates is substantially parallel to one of the filtering parts. Each of the polarization beam splitting units is disposed between a pair of a wave plate and a filtering part. The color filtering device has both color filtering function and polarization conversion function. | 12-11-2008 |
| 20080316430 | PROJECTION APPARATUS - A projection apparatus including an illumination system, a reflective light valve and an imaging system is provided. The illumination system emits an illumination beam. The reflective light valve is disposed on a transmission path of the illumination beam. The imaging system includes a first lens group, a polarization beam splitter and a second lens group. The first lens group is disposed on the transmission path of the illumination beam between the illumination system and the reflective light valve. The polarization beam splitter is disposed on the transmission path of the illumination beam between the illumination system and the first lens group. The polarization beam splitter permits the illumination beam to pass through and travel to the reflective light valve. The reflective light valve modulates the illumination beam to an image beam traveling to the polarization beam splitter. The polarization beam splitter reflects the image beam to the second lens group. | 12-25-2008 |
| 20080316569 | ILLUMINATION SYSTEM - An illumination system for providing an illumination beam to a light valve is provided. The illumination system includes a light source, a light integration rod, a color wheel, a first focusing unit and a second focusing unit. The light source is capable of generating the illumination beam, and the light integration rod is disposed on the transmission path of the illumination beam. The first focusing unit is disposed between the integration rod and the color wheel and is capable of focusing the illumination beam onto the color wheel. The second focusing unit is disposed between the color wheel and the light valve and is capable of focusing the illumination beam onto the light valve. | 12-25-2008 |
| 20090009720 | OPTICAL ENGINE - An optical engine including a beam splitting and combining system, which includes a first polarizing beam splitting (PBS) unit, a dichroic unit and a second PBS unit, is provided. A first color beam is reflected by the first PBS unit, is reflected by a first light valve, and passes through the first PBS unit sequentially. A second color beam passes through the first PBS unit, is reflected by a second light valve, and is reflected by the first PBS unit sequentially. The dichroic unit is disposed on an optical path of the first and second color beams. The second PBS unit is capable of allowing a third color beam to travel to a third light valve and allowing the third color beam reflected from the third light valve to travel to the dichroic unit. The dichroic unit is capable of combining the first, second and third color beams. | 01-08-2009 |
| 20090059396 | ILLUMINATION SYSTEM - An illumination system including at least one first light source, a prism and a light uniforming device is provided. The first light source is capable of providing a first beam. The prism is disposed on a transmission path of the first beam, and has four first facets. Two of the first facets are opposite to each other, and the other two first facets are opposite to each other. The first beam passes through one of the first facets and is totally internally reflected by another first facet opposite to the one of the first facets. The light uniforming device is disposed on the transmission path of the first beam from the another first facet. The cost of the illumination system is lower, and the illumination system has high flexibility of the light source design and can provide illumination with high brightness. | 03-05-2009 |
| 20100155756 | LIGHT EMITTING DIODE PACKAGE AND PROJECTION APPARATUS - A light emitting diode (LED) package including a carrier, at least one LED chip, and a light guide element is provided. The LED chip is disposed on the carrier. The light guide element including a light transmissive body, a light integration part, a reflective film, and a support part is disposed on the carrier and above the LED chip. The light integration part connected to the light transmissive body and disposed between the light transmissive body and the LED chip has a light incident surface facing the LED chip and at least one side. The side connects the light transmissive body and the light incident surface. The reflective film is disposed on the side. The support part leaning on the carrier is connected to the light transmissive body and surrounds the light integration part. The light transmissive body, the light integration part, and the support part are integrally formed. | 06-24-2010 |
