Chung-Ta
Chung-Ta Cheng, Taipei City TW
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20130140269 | METHOD AND MECHANISM OF PHOTORESIST LAYER STRUCTURE USED IN MANUFACTURING NANO SCALE PATTERNS - A method and a mechanism for nano scale patterns with high aspect ratios etched on both photoresist layers and a carrier substrate and uses two complementary photoresist layers as an etch mask and the laser direct-write lithography technology to quickly fabricate large-size & nano scale patterns features (1) inorganic photoresist as material of a first layer of photoresist for nano scale patterns defined by laser beam direct-write lithography and (2) polymeric organic photoresist as material of a second layer of photoresist to thicken an etch mask because of effect of oxygen plasma, which has a higher etching rate on a polymeric organic photoresist layer but a lower one on an inorganic photoresist layer. For various materials of carrier substrates applied to the present invention, there are several types of Inductively Coupled Plasma-Reactive Ion Etching technologies available for nano scale patterns continuously transferred to a carrier substrate. | 06-06-2013 |
Chung-Ta Hsu, Santa Barbara, CA US
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20140167059 | PEC ETCHING OF (20-2-1) SEMIPOLAR GALLIUM NITRIDE FOR EXTERNAL EFFICIENCY ENHANCEMENT IN LIGHT EMITTING DIODE APPLICATIONS - A method of performing a photoelectrochemical (PEC) etch on an exposed surface of a semipolar {20-2-1} III-nitride semiconductor, for improving light extraction from and for enhancing external efficiency of one or more active layers formed on or above the semipolar {20-2-1} III-nitride semiconductor. | 06-19-2014 |
Chung-Ta Lin, New Taipei City TW
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20130141851 | MODULARIZED SERVER - A modularized server includes a main housing, a first block unit, a second block unit, and a removable module. The main housing has a first inserting groove and a second inserting groove, and the removable module has a guide channel. When the removable module is disposed in the first inserting groove along a sliding direction, the first block unit is located in the guide channel. Moreover, the second block unit blocks the removable module from being installed to the second inserting groove. | 06-06-2013 |
Chung-Ta Tsai, Hsinchu City TW
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20130285757 | CONTROL CIRCUIT FOR REDUCING ELECTROMAGNETIC INTERFERENCE - A control circuit for reducing electromagnetic interference is provided. The control circuit includes a periodic signal generator and a modulation controller. The periodic signal generator adjusts a modulation periodic signal generated by the periodic signal generator, according to a feedback modulation signal. The modulation controller is coupled to the periodic signal generator, for receiving the modulation periodic signal, and adjusting a frequency of the received modulation periodic signal according to a plurality of delay periods set according to a plurality of control signals, and generating the feedback modulation signal. | 10-31-2013 |
Chung-Ta Wu, Taipei City TW
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20140300803 | IMAGE-CAPTURING SYSTEM - An image-capturing system for automatically adjusting divergence angle includes an image-capturing unit, an auxiliary lighting unit and a control unit. The image-capturing unit includes an image sensor and a zoom lens adjacent to the image sensor. The image sensor is applied to capture images of at least one body through the zoom lens, and the zoom lens has a first variable focus. The auxiliary lighting unit includes at least one light-emitting element for generating light beams and at least one electrically-controlled zoom lens module adjacent to the light-emitting element, and the electrically-controlled zoom lens module has a second variable focus. The light beams generated by the light-emitting element can pass through the electrically-controlled zoom lens module to form a projection light source that can be projected onto the body. The control unit includes a voltage controlling module electrically connected between the image-capturing module and the auxiliary lighting device. | 10-09-2014 |
Chung-Ta Wu, Taoyuan County TW
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20130300628 | MULTI-FREQUENCU ANTENNA - A multi-frequency antenna includes a substrate, an antenna portion and a radiator. The antenna portion has a low-frequency radiation antenna and a high-frequency radiation antenna. By selectively coupling the low-frequency radiation antenna, the high-frequency radiation antenna and the radiator, the multi-frequency antenna can work in multiple frequency bands. | 11-14-2013 |
Chung-Ta Yu, Taipei City TW
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20140132453 | MULTI-BAND ANTENNA - A multi-band antenna suitable for an electronic device is provided. The electronic device has a metal shell. The multi-band antenna includes a ground portion, a radiating portion and a feeding portion. The ground portion has a ground plane. The radiating portion has at least one radiating section and a short-circuit section. An extending direction of the radiating section is parallel to the ground plane. The short-circuit section is electrically connected between the radiating section and the ground plane. The ground portion is adapted to obstruct a path between the metal shell and the radiating section. The feeding portion is electrically connected to the radiating section. | 05-15-2014 |
20140203974 | ELECTRONIC DEVICE AND ANTENNA UNIT THEREOF - An electronic device includes a body and an antenna unit. The body has a casing, in which the casing includes a back cover and a first side-wall. The antenna unit disposed in the casing is adjacent to the first side-wall and has a plurality of slots, in which the antenna unit includes a first conductor, a second conductor and a third conductor. The first conductor faces the first side-wall. The second conductor is bent connected to a side-edge of the first conductor to face the back cover and grounded to the back cover. The third conductor is bent connected to the other side-edge of the first conductor, in which the slots are formed on at least one of the first conductor and the third conductor. | 07-24-2014 |
Chung-Ta Yu, Keelung City TW
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20110037654 | Dual-frequency antenna - A dual-frequency antenna includes a substrate, a ground plane, a radiation path, a short-circuit path and a connection path. The ground plane is disposed on the substrate and has a short-circuit point and a ground point. The radiation path is disposed on the substrate, adjacent to the ground plane. A feed point is disposed on one end of the radiation path, corresponding to the ground point; and a first connecting point is formed on the radiation path. A short-circuit path is disposed on the substrate, two ends of the short-circuit path respectively electrically connected with the short-circuit point and the feed point, and a second connecting point is formed on the short-circuit path. The connection path is disposed on the substrate, two ends of the connection path respectively electrically connected with the first connecting point and the second connecting point. | 02-17-2011 |
20110227805 | BROADBAND ANTENNA APPLIED TO MULTIPLE FREQUENCY BAND - A broadband antenna includes a substrate, a ground plane, a radiating path, a shorting path, a first connection path, a second connection path and a coupling path. The ground plane has a shorting point, a first grounding point and a second grounding point. The radiating path has a feeding point and a first connecting point. Two ends of the shorting path are respectively electrically connected with the shorting point and the feeding point, and the shorting path has a second connecting point. Two ends of the first connection path are respectively connected with the first connecting point and the second connecting point. Two ends of the second connection path are respectively connected with the first grounding point and the feeding point. One end of the coupling path is connected to the second grounding point and another end of the coupling path is separated from the shorting path. | 09-22-2011 |