Patents by Inventor Wen Liu

Wen Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • WAFER SCRIBE LINE STRUCTURE FOR IMPROVING IC RELIABILITY
    Publication number: 20090140393
    Abstract: A semiconductor wafer having a multi-layer wiring structure is disclosed. The wafer comprises a plurality of chip die areas arranged on the wafer in an array and scribe line areas between the chip die areas. The scribe lines of a semiconductor wafer having USG top-level wiring layers above ELK wiring layers have at least one metal film structures substantially covering corner regions where two scribe lines intersect to inhibit delamination at the USG/ELK interface during wafer dicing operation.
    Type: Application
    Filed: March 24, 2008
    Publication date: June 4, 2009
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsien-Wei Chen, Hao-Yi Tsai, Shin-Puu Jeng, Yu-Wen Liu
  • SPA JET WITH SCREW IN JET BARREL
    Publication number: 20090133188
    Abstract: A jet assembly has internals rotatably and releaseably fit to a jet body, such as that for a spa. The internals have a barrel housing, a rotor and a barrel inlet. The internals as screwed into the jet body. A first threaded portion outside the barrel threadably engages second threaded portion inside the jet body wherein the internals have delimited rotation therein to align and misalign the barrel inlet from a body inlet on the jet body to control flow on and off respectively. The threaded portion within the jet body can be a locking ring affixed therein by fasteners or integral with the jet body. Rotation can be delimited by a projection on the barrel and a cooperating annular delimiting surface on the locking ring, such as circumferentially-spaced detents.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 28, 2009
    Applicant: Zhongshan Rising Dragon Plastics Manufactuting Co. Ltd.
    Inventors: Xue Wen PENG, John KEIRSTEAD, Kerry HARBARENKO, Joe HOOVER, Xue Wen LIU
  • SILICONE BAKEWARE
    Publication number: 20090061128
    Abstract: A silicone bakeware provided with an upper rim has at least one support wire ring wrapped up in outer surfaces of the silicone bakeware, and plural shuttles fitted and spaced apart on the at least one support wire ring. The shuttles made of a compatible material to silicone rubber are provided with plural tooth-shaped grooves in an outer surface. The at least one support wire ring is in advance placed in groove of a female mold and kept therein at a distance from the inner wall surface of the groove and located in the center of the groove without biasing. In the process of forming the silicone bakeware in a mold by injection molding, the at least one support wire ring is wrapped up in a balanced condition with the silicone rubber material and held by the shuttles to augment its stress, preventing it from disfiguring.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 5, 2009
    Inventor: I-Wen Liu
  • LIGHT SOURCE DEVICE
    Publication number: 20090057534
    Abstract: The invention discloses light source devices applied in backlight modules of image display panels. The light source device includes a current source unit generating a driving current, a plurality of light emitting units coupled in series to the current source unit, a plurality of current shunts corresponding to the light emitting units respectively and providing current bypasses for the driving current to bypass the corresponding light emitting units, a plurality of light sensing units sensing the brightness of the light emitting units, and a control unit generating a plurality of current shunt control signals for separately controlling the current shunts. Each of the current shunt control signals is generated according to the sensed brightness of the corresponding light emitting unit and is used in controlling the conduction statement of the current bypass provided by the corresponding current shunt.
    Type: Application
    Filed: March 3, 2008
    Publication date: March 5, 2009
    Applicant: CORETRONIC CORPORATION
    Inventors: Chao-Wen Liu, Yung-Lung Liu
  • Method For Reducing Degradation in A Fuel Cell
    Publication number: 20090050269
    Abstract: The invention is a method of reducing catalyst dissolution in the cathode of a membrane electrode assembly fuel cell, the method comprising the steps of: (a) preparing a membrane electrode assembly comprising an anode, a cathode and a polymer electrolyte membrane interposed between the anode and the cathode; (b) assembling a fuel cell using the membrane electrode assembly; (c) applying a fluid comprising an oxidant to the cathode of the membrane electrode assembly; (d) applying a fluid comprising a fuel to the anode of the membrane electrode assembly; and (e) supplying a sufficient quantity of reducing agent to the cathode to maintain the average open-circuit voltage of the cathode at less than about 0.98 V.
    Type: Application
    Filed: August 13, 2008
    Publication date: February 26, 2009
    Inventors: Wen Liu, William B. Johnson, Simon J. C. Cleghorn, Ronald M. Reid
  • Resolution detection method for an electronic display device
    Patent number: 7495681
    Abstract: A resolution detection method for an electronic display device. The method first receives a line rate, a frame rate, and a horizontal total of an electronic display device to calculate candidate resolutions. A horizontal display of the electronic display device is then received. Next, a horizontal blank is calculated according to the line rate and the horizontal display. An adjustment method for application to the electronic display device is determined according to the horizontal blank. Finally, an optimum resolution is selected from the candidate resolutions according to the determined adjustment method.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: February 24, 2009
    Assignee: Qisda Corporation
    Inventors: Yun-Wen Liu, Min-Jye Chen
  • Cooling fan
    Patent number: 7492070
    Abstract: A cooling fan includes: a casing having a surrounding wall that defines an accommodating space; a circuit board disposed in the accommodating space and including a substrate and a control circuit, the substrate having a center portion that has a peripheral edge, and a plurality of spaced apart connecting beams that extend from the peripheral edge of the center portion and that are connected directly and securely to the surrounding wall; a hollow shaft secured directly to and protruding from the circuit board into the accommodating space; a stator mounted securely on the center portion of the substrate of the circuit board and coupled to the control circuit; a fan blade unit disposed in the accommodating space and including an annular hub journalled rotatably to the hollow shaft; and a rotor mounted on the hub.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: February 17, 2009
    Assignee: Yen Sun Technology Corp.
    Inventors: Chien-Jung Chen, Hsien-Wen Liu, Hui-Chao Hsu
  • Biosensor Detection By Means Of Droplet Driving, Agitation, and Evaporation
    Publication number: 20090042319
    Abstract: Methods of improving microfluidic assays are disclosed. Assays can be improved (better signal to noise ratio) by using sessile drop evaporation as an analyte concentration step (enhanced signal) and repeated passes of wash droplets as a means to reduce non-specific binding (noise reduction). In addition multiple massively parallel analyses improve the statistical precision of the analyses.
    Type: Application
    Filed: June 15, 2006
    Publication date: February 12, 2009
    Inventors: Peter Patrick De Guzman, Wayne Po-wen Liu, Brandon Uichong Yi, Chang-Jin Kim
  • DISPLAY WITH A LUMINANCE AND COLOR TEMPERATURE CONTROL SYSTEM AND METHOD FOR CONTROLLING THE LUMINANCE OF A DISPLAY
    Publication number: 20090033646
    Abstract: A display includes a display module, a light source, a light source driving circuit, a display driving circuit, and an optical sensor. The optical sensor is installed next to the light source for detecting the luminance and color temperature of the light source. The optical sensor is coupled to the display driving circuit for generating a feedback signal to the display driving circuit according to the luminance and the color temperature of the light source. The display driving circuit drives the display module to display an image according to a received image signal and updates the data of the image signal according to the feedback signal so as to adjust the luminance and the color temperature of the image.
    Type: Application
    Filed: April 21, 2008
    Publication date: February 5, 2009
    Inventors: Chao-Wen Liu, Chih-Kuo Lee
  • Apparatus of dynamically assigning external home agent for mobile virtual private networks and method for the same
    Patent number: 7486951
    Abstract: An apparatus dynamically assigns external home agent (HA) for VPNs and a method for the same is proposed. The apparatus establishes VPN between an internal network and at least one external network, whereby a mobile node (MN) can roam in the external network with security. The external HA closest to the MN in the visited external network is selected for mobility management of the MN. The MN only needs to register with the same external HA when roaming in the same external network. The handoff latency and end-to-end latency for a roaming MN, therefore, could be reduced significantly. It will also not reestablish the IPsec tunnel within the same external network.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: February 3, 2009
    Assignee: Zyxel Communications Corporation
    Inventors: Jyh-Cheng Chen, Li-Wei Lin, Yi-Wen Liu
  • VACUUM TYPE POSITIONING APPARATUS
    Publication number: 20090026677
    Abstract: A vacuum type positioning apparatus (10), used in insert-molding machine for positioning an inserted workpiece (181), is provided. The vacuum type positioning apparatus includes a vacsorb unit (11) and a positioning unit (15). The positioning unit connects with the vacsorb unit. The positioning unit has an attaching wall (1912). The vacsorb unit provides a suction pressure for the positioning unit to attach the inserted workpiece with the attaching wall.
    Type: Application
    Filed: November 28, 2007
    Publication date: January 29, 2009
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., SUTECH TRADING LIMITED
    Inventors: GAO-WEN LIU, ZHI-QIANG CHEN, TAO WEN
  • Method and apparatus for stabilizing plating film impurities
    Patent number: 7481910
    Abstract: A method of stabilizing plating film impurities in an electrochemical plating bath solution is disclosed. The method includes providing an electrochemical plating machine in which an electrochemical plating process is carried out. A by-product bath solution is formed by continually removing a pre-filtered bath solution from the machine and removing an additive from the pre-filtered bath solution. A clean bath solution is formed by removing an additive by-product from the by-product bath solution. An additive bath solution is formed by adding a fresh additive to the clean bath solution. The additive bath solution is added to the electrochemical plating machine. An apparatus for stabilizing film impurities in an electrochemical plating bath solution is also disclosed.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: January 27, 2009
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Hsien-Ping Feng, Ming-Yuang Cheng, Si-Kwua Cheng, Steven Lin, Jung-Chih Tsao, Chen-Peng Fan, Chi-Wen Liu
  • Apparatus of dynamically assigning external home agent for mobile virtual private networks and method for the same
    Patent number: 7477626
    Abstract: An apparatus dynamically assigns external home agent (HA) for VPNs and a method for the same is proposed. The apparatus establishes VPN between an internal network and at least one external network, whereby a mobile node (MN) can roam in the external network with security. The external HA closest to the MN in the visited external network is selected for mobility management of the MN. The MN only needs to register with the same external HA when roaming in the same external network. The handoff latency and end-to-end latency for a roaming MN, therefore, could be reduced significantly. It will also not reestablish the IPsec tunnel within the same external network.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: January 13, 2009
    Assignee: Zyxel Communications Corporation
    Inventors: Jyh-Cheng Chen, Li-Wei Lin, Yi-Wen Liu
  • ENDOSCOPE AND MAGNETIC FIELD CONTROL METHOD THEREOF
    Publication number: 20090012363
    Abstract: An endoscope device is provided. The endoscope device includes a capsule sensor entering a human body for detection and sending a signal, a driving device movably disposed outside of the human body and moving and rotating the capsule sensor in the human body with non-contact force for omni-directional human body detection, a data receiving device disposed outside of the human body and receiving signals from the capsule sensor, and a power supply device providing power to the driving device and the data receiving device.
    Type: Application
    Filed: July 1, 2008
    Publication date: January 8, 2009
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Chih-Wen LIU, R-Shin TZENG, Gi-Shih LIEN
  • Supercritical developing for a lithographic process
    Patent number: 7473517
    Abstract: A method of creating a resist image on a semiconductor substrate includes exposing a layer of photoresist on the semiconductor substrate and developing the exposed layer of photoresist using a first fluid including supercritical carbon dioxide and a base such as Tetra-Methyl Ammonium Hydroxide (TMAH). Additionally, the developed photoresist can be cleaned using a second fluid including supercritical carbon dioxide and a solvent such as methanol, ethanol, isopropanol, and xylene.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: January 6, 2009
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ching-Yu Chang, Burn Jeng Lin, Chi-Wen Liu
  • OPTICAL SENSING MODULE AND DISPLAY DEVICE USING THE SAME
    Publication number: 20080316472
    Abstract: An optical sensing module is adapted to be assembled to a frame of a display device. The display device comprises a display module and the frame, and the display module has a display area and the frame surrounds the display area. The optical sensing module comprises a casing and an optical sensor. The casing is pivoted to the frame and the optical sensor is configured in the casing for sensing external light projecting on a side of the casing. The optical sensor is capable of sensing a brightness of the display area when the side of the casing faces the display area and sensing a brightness of an ambient light when the side of the casing doesn't face the display area.
    Type: Application
    Filed: December 4, 2007
    Publication date: December 25, 2008
    Applicant: CORETRONIC CORPORATION
    Inventors: Wei-Cheng Hwang, Chao-Wen Liu, Yung-Lung Liu, Chwen-Tay Hwang
  • METHOD FOR AUTOMATICALLY CALIBRATING OUTPUT POWER OF OPTICAL PICK-UP HEAD AND OPTICAL DISC DRIVER USING THE METHOD
    Publication number: 20080310262
    Abstract: A method for automatically calibrating an output power of an optical pick-up head is provided. First, an optical disc is provided, wherein a relationship between the output power for writing the optical disc and a specific parameter corresponding thereto is defined as a first function. Next, the optical pick-up head is controlled to perform a writing operation on the optical disc according to an instruction value, and obtain the specific parameter corresponding to the instruction value. Next, the output power corresponding to the instruction value is obtained according to the first function and the specific parameter. Next, the instruction value is adjusted according to the instruction value and the output power, and the output power of the optical pick-up head is calibrated according to the adjusted instruction value.
    Type: Application
    Filed: June 11, 2008
    Publication date: December 18, 2008
    Applicant: SUNPLUS TECHNOLOGY CO., LTD.
    Inventors: Yao-Wen Liu, Wen-Chun Feng
  • Lead frame structure having blocking surfaces and semiconductor package integrated with the lead frame structure
    Patent number: 7459770
    Abstract: A lead frame structure is provided, which includes a die pad having a first mounting portion and a second mounting portion separated from the first mounting portion by a gap. The first and second mounting portions are formed with corresponding blocking surfaces bordering the gap, so as to allow a flow rate of an encapsulating resin flowing through the gap during a molding process to be reduced by the blocking surfaces, such that different portions of the encapsulating resin respectively flowing above, in and below the die pad can have substantially the same flow rate, thereby preventing bonding wires from being deformed to cause short circuit and avoiding formation of voids. A semiconductor package with the lead frame structure is also provided.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: December 2, 2008
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Wen-Shan Tsai, Chien-Feng Wei, Hung-Wen Liu, Ming Cheng Lin, Lien-Chen Chiang
  • DYNAMIC RANDOM ACCESS MEMORY AND MANUFACTURING METHOD THEREOF
    Publication number: 20080290389
    Abstract: A dynamic random access memory (DRAM) is provided. The DRAM comprises a substrate, a vertical transistor, a deep trench capacitor and a buried strap. The substrate has a trench and a deep trench located on one side of the trench thereon. The vertical transistor is disposed in the trench, a portion of which is disposed on the substrate. The deep trench capacitor is disposed in the deep trench, and comprises a bottom electrode, a capacitor dielectric layer and a top electrode. The vertical transistor comprises a gate structure disposed in the trench and above the substrate, a first doped region disposed in the substrate on sidewalls and bottom of the trench, and a second doped region disposed in the substrate on top of the trench. The buried strap is disposed in the substrate below the vertical transistor, and is adjoined to the first doped region and the top electrode.
    Type: Application
    Filed: November 9, 2007
    Publication date: November 27, 2008
    Applicant: NANYA TECHNOLOGY CORPORATION
    Inventor: Shih-Wen Liu
  • Cooling fan
    Patent number: 7443065
    Abstract: A cooling fan includes: a casing having a base wall and a surrounding wall that extends transversely from the base wall, and that has an inner wall surface and a top opening; a stator mounted on the inner wall surface of the surrounding wall; a shaft protruding from the base wall; a fan blade unit including an annular hub that is journalled rotatably to the shaft, a supporting ring that surrounds the hub, and a plurality of blades that extend between and that are connected to the hub and the supporting ring; a rotor mounted on the supporting ring; and a cover in the form of a circuit board mounted on the top end face of the surrounding wall for covering the top opening in the casing and including a substrate formed with a central opening.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: October 28, 2008
    Assignee: Yen Sun Technology Corp.
    Inventors: Chien-Jung Chen, Hsien-Wen Liu, Hui-Chao Hsu