Wu-Chang
Wu-Chang Chang, Hsinchu County TW
Patent application number | Description | Published |
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20160006348 | CHARGE PUMP APPARATUS - The invention provides a charge pump apparatus including a clock signal generator, a clock freezing circuit, a charge pump circuit, and a feedback circuit. The clock signal generator generates a clock signal. The clock freezing circuit directly receives the clock signal and an enable signal. The clock freezing circuit decides whether to pass or latch a voltage level of the clock signal according to the enable signal to generate a controlled clock signal. The charge pump circuit directly receives the controlled clock signal and operates a charge pump operation on an input voltage to generate a pumping voltage. | 01-07-2016 |
20160006349 | FOUR-PHASE CHARGE PUMP CIRCUIT - A four-phase charge pump circuit including an output stage and multiple boosting stages is provided. The multiple boosting stages are coupled to the output stage in series, and each of the multiple boosting stages is driven by four-phase clock signals. The output stage is driven by two clock signals of the four-phase clock signals and outputs a positive boosted voltage, and thereby the four-phase charge pump circuit is a positive charge pump circuit. Each of the boosting stages includes two branch charge pumps, and each of the two branch charge pumps includes a main pass transistor and a pre-charge transistor. The main pass transistors and the pre-charge transistors of the boosting stages are disposed on an identical deep doped region. | 01-07-2016 |
Wu-Chang Liao, Hsinchuang TW
Patent application number | Description | Published |
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20110072938 | Corkscrew - A corkscrew has a body, an extension housing, a corkscrew element and at least one pushing lever. The body is hollow and has a sleeve and a stationary housing. The extension housing is connected extendably to the stationary housing to make the length of the body extendable. The corkscrew element is mounted moveably in the body and has a grip end, a screw end and a toothed segment. The at least one pushing lever is mounted pivotally on the sleeve. Each pushing lever has a toothed end engaging the toothed segment on the corkscrew element. The corkscrew element can be moved upward several times with pivoting the at least one pushing lever and thereby extending the extension housing relative to the body to the body to provide a laborsaving effect. | 03-31-2011 |
Wu-Chang Lin, Taichung City TW
Patent application number | Description | Published |
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20130154060 | WAFER AND METHOD OF PROCESSING WAFER - A wafer including a substrate, a dielectric layer over the substrate, and a conductive layer over the dielectric layer is disclosed. The substrate has a main portion. A periphery of the dielectric layer and the periphery of the main portion of the substrate are separated by a first distance. A periphery of the conductive layer and the periphery of the main portion of the substrate are separated by a second distance. The second distance ranges from about a value that is 0.5% of a diameter of the substrate less than the first distance to about a value that is 0.5% of the diameter greater than the first distance. | 06-20-2013 |
Wu-Chang Yang, Zhonghe City TW
Patent application number | Description | Published |
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20080216677 | Ice-carving Machine - An ice-carving machine comprises a framework, an ice block positioning system, at least one feeding system, and at least one heating mold. The ice block positioning system is fixed on the workbench of the framework for positioning the ice block to be processed. The feeding system drives the heating mold to heat and press the ice block in a mold cavity with a predetermined shape. By the pressure and heat of the heating mold, the ice block is made into the shape identical to the shape of the mold cavity, thus simplifying the process of carving ice blocks, and also saving carving time and cost, being especially suitable for a mass production of ice sculptures. | 09-11-2008 |