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Chih-Hung Wu

Chih-Hung Wu, Longtan Shiang TW

Patent application numberDescriptionPublished
20080286946Wafer dicing method - A wafer stacked on a mounting layer is safely diced. The mounting layer has holes partially corresponding to chips on the wafer. Thus, chips obtained after dicing the wafer can be safely removed from the mounting tape. An amount of the mounting tape used can be reduced. And a production cost can be lowered as well.11-20-2008
20100212724Hollow light-collecting device - A light-collecting device has a hollow at center. Three layers are sequentially pasted on and around the hollow. The device collects light efficiently with different materials of the layers. And the device has a long life of use, is environmentally friendly and is easily mass-produced.08-26-2010
20100238573Light-collection apparatus - A light-collection apparatus includes a core, a first layer and a second layer. The core is made in the form of a frustum and used as a solid light-passing zone. The first layer is provided on the core. The second layer is provided on the first layer. Therefore, the light-collection apparatus is excellent in collecting light, easily mass-produced at a low cost, durable and environmentally friendly.09-23-2010
20100282311Solar Cell Device Having Low Electrical and Thermal Impedance - A solar cell is fabricated. Its light-absorbing part is close to a heat-diffusing device. Thus, the solar cell has low electrical and thermal Impedance. The solar cell has a strong structure, high efficiency and is fit for mass production.11-11-2010
20100283153Ohmic Contact Having Silver Material - An ohmic contact is fabricated. The ohmic contact has low electric resistivity and high thermal conductivity. The materials for fabricating the ohmic contact include silver. Thus, equipments for fabricating the ohmic contact are compatible to modern generally used equipments.11-11-2010
20110023953Solar Cell Device - A solar cell is provided Its light absorption area is close to a heat-dissipation apparatus. Thus, an excellent dissipation efficiency is obtained. The solar cell has a strong structure, an easy fabrication method and a low cost. Thus, the present invention is fit for mass-production.02-03-2011

Patent applications by Chih-Hung Wu, Longtan Shiang TW

Chih-Hung Wu, Taoyuan County TW

Patent application numberDescriptionPublished
20080284082Wafer clamp having changeable supporting part - A wafer clamp according to the present invention always firmly clamps a wafer. A supporting arm of the wafer clamp will be replaced with a different one according to the wafer size. Moreover, with a larger area of the supporting arm, a wear resistance and a smoothness of the wafer is improved. Besides, the wafer clamp stops the wafer from slipping. Hence, the present invention has a simple structure, a good practicality and a wide application11-20-2008
20100319168Clip for water - A clip includes a beam for contact with a face of a wafer, a first oblique section and a second oblique section for contact with an opposite face of the wafer. The beam includes a supporting section formed thereon. The first oblique section extends from the beam so that there is an acute angle between the first oblique section and the beam. The second oblique section extends from the first oblique section so that there is an acute angle between the first and second oblique sections and that there is an acute angle between a plane in which the supporting section lies.12-23-2010
20120199177Multijunction Solar Cell Device - The present disclosure provides a solar cell device. The device has solar cells having multijunction. A supplemental current source is connected with one of the solar cells having a smallest current in the device. Thus, through providing required current by the supplemental current source, usage performance of the device is enhanced.08-09-2012
20120216857Solar Cell Assembly with an Improved Photocurrent Collection Efficiency - Disclosed is a solar cell assembly with excellent photocurrent collection efficiency. The solar cell assembly includes a solar cell and a surface barrier layer. The solar cell includes a window layer. The surface barrier layer is provided on the window layer. The surface barrier layer is made of phosphide or arsenide.08-30-2012
20120222739Photovoltaic Apparatus - A photovoltaic apparatus includes a substrate, a light-concentrating heat sink unit and a solar cell. The light-concentrating heat sink unit includes a carrier connected to the substrate, at least two fins extending from the carrier, and at least two reflective layers each extending on a related one of the fins. The solar cell includes a lower electrode and a solder layer of low thermal resistance provided between the lower electrode and the carrier.09-06-2012
20120273815LIFT-OFF STRUCTURE FOR SUBSTRATE OF A PHOTOELECTRIC DEVICE AND THE METHOD THEREOF - The present invention related to a lift-off structure adapted to a substrate having a photoelectric device, the structure comprising: a buffer layer, forming on the substrate; an upper sacrificial layer, forming on the buffer layer; an etch stop layer, forming on the upper sacrificial layer, and the photoelectric device structure forming on the etch stop layer.11-01-2012

Patent applications by Chih-Hung Wu, Taoyuan County TW

Chih-Hung Wu, Taoyuan TW

Patent application numberDescriptionPublished
20100283179Method of Fabricating Metal Nitrogen Oxide Thin Film Structure - A TiON, TaON or ZrON thin film is fabricated through an easy process. The film is corrosion resistant, electric conductive and decorative. The process uses no chloride (Cl) and so is environmental protected. The present disclosure is fit for mass production.11-11-2010

Patent applications by Chih-Hung Wu, Taoyuan TW

Chih-Hung Wu, Longtan Shaing TW

Patent application numberDescriptionPublished
20100215866Method for coating an electrode on a wafer - There is disclosed a method for coating an electrode on a wafer. Firstly, there is provided a wafer. Secondly, a metal area is defined in an upper surface of the wafer. Thirdly, the metal area is roughened via etching. Finally, an electrode is coated on the metal area via deposition.08-26-2010

Chih-Hung Wu, Taichung City TW

Patent application numberDescriptionPublished
20120118113RATCHET WRENCH - A ratchet wrench includes a handle and a wrench head unit having head body rotatably mounted on a head portion of the handle, a plurality of tubular coupling member angularly displaced from each other, and a plurality of driving heads, each coupled with the respective tubular coupling member by means of a ratchet unit. By virtue of the ratchet unit, the driving head can be selectively turned in a clockwise direction, a counterclockwise direction, or both thereof. By virtue of the driving heads, the ratchet wrench can be used to turn a variety of fasteners.05-17-2012

Chih-Hung Wu, Taipei City TW

Patent application numberDescriptionPublished
20120153859DRIVING CIRCUIT FOR DRIVING LIGHT EMITTING DIODES AND SIGNAL-EXTENDING CIRCUIT APPLIED TO A DRIVING CIRCUIT FOR DRIVING LIGHT EMITTING DIODES - A driving circuit for driving light emitting diodes includes a signal-extending circuit and a current sink. The signal-extending circuit is used for receiving an original dimming signal and extending a duty cycle of the original dimming signal. The current sink is coupled to the signal-extending circuit for generating a driving current for driving a series of light emitting diode.06-21-2012

Chih-Hung Wu, Zhubei City TW

Patent application numberDescriptionPublished
20120211257PYRAMID BUMP STRUCTURE - A pyramid bump structure for electrically coupling to a bond pad on a carrier comprises a conductive block disposed at the bond pad and an oblique pyramid insulation layer covered at one side of the conductive block. The oblique pyramid insulation layer comprises a bottom portion and a top portion, and outer diameter of the oblique pyramid insulation layer is tapered from the bottom portion to the top portion. When the carrier is connected with a substrate and an anisotropic conductive film disposed at the substrate, the pyramid bump structure may rapidly embed into the anisotropic conductive film to raise the flow rate of the anisotropic conductive film. Further, a short phenomenon between adjacent bumps can be avoided to raise the yield rate of package process.08-23-2012

Chih-Hung Wu, Longtan Township TW

Patent application numberDescriptionPublished
20120287597SIMULATED SUNLIGHT GENERATING DEVICE - A simulated sunlight generating device for generating a simulated sunlight required for evaluating performance of solar cells includes a plurality of driving units, a plurality of light-emitting units, and a plurality of adjusting units. The driving units drive the light-emitting units to emit light. The adjusting units enable the light of the light-emitting units to not only propagate along the same light route but also be added up and combined to form the simulated sunlight of an intended wavelength with ease of installation, ease of maintenance, low costs, high flexibility, and high efficiency.11-15-2012