Patents by Inventor Yih Chang

Yih Chang 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).

  • Publication number: 20070127173
    Abstract: An electrostatic discharge (ESD) protection apparatus for high-voltage products is provided. The ESD protection apparatus includes a resistor, a capacitor, a first transistor, n diodes, and a main transistor, wherein n is an integer greater than 0. The holding voltage of the provided ESD protection apparatus is adjusted by determining the n value. The adjusted holding voltage is higher than the system voltage under normal operation, so that latch-up issues are avoided.
    Type: Application
    Filed: March 30, 2006
    Publication date: June 7, 2007
    Inventor: Chyh-Yih Chang
  • Publication number: 20070120146
    Abstract: A differential input/output device including an electro static discharge protection circuit is provided. The differential input/output device includes a P-type differential pair. The P-type differential pair includes two P-type transistors. The gate of each P-type transistor is coupled to an N-type transistor to protect the P-type transistor when CDM ESD occurs. Compared with the conventional technology, the protection device of the present invention provides a lower impedance current path when CDM ESD occurs in the input device.
    Type: Application
    Filed: January 23, 2006
    Publication date: May 31, 2007
    Inventors: Chyh-Yih Chang, Yan-Nan Li
  • Publication number: 20070119762
    Abstract: A filtration device. The filtration device includes a tank, photocatalyst, a light source and a non-woven membrane module. The tank includes a reacting section and a separating section. The photocatalyst is added to water. The light source, disposed in the reacting section, provides light to react with the photocatalyst and thereby decompose pollutants in the water. The non-woven membrane module, disposed in the separating section, intercepts the photocatalyst in the water, producing purified water.
    Type: Application
    Filed: June 14, 2006
    Publication date: May 31, 2007
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsin Shao, Min-Chao Chang, Ren-Yang Horng, Yih-Chang Chen, Pi-Lien Hsiao
  • Publication number: 20070114582
    Abstract: An integrated circuit device for converting an incident optical signal into an electrical signal comprises a semiconductor substrate, a well region formed inside the semiconductor substrate, a dielectric layer formed over the well region, and a layer of polysilicon for receiving the incident optical signal, formed over the dielectric layer, including a p-type portion, an n-type portion and an undoped portion disposed between the p-type and n-type portions, wherein the well region is biased to control the layer of polysilicon for providing the electrical signal.
    Type: Application
    Filed: October 2, 2006
    Publication date: May 24, 2007
    Inventors: Yu-Da Shiu, Chyh-Yih Chang, Ming-Dou Ker, Che-Hao Chuang
  • Patent number: 7208870
    Abstract: An organic electroluminescent panel having a silver alloy is disclosed, which has a substrate; a plurality of the first electrodes; a plurality of the second electrodes; a plurality of conducting lines containing a silver alloy; a plurality of isolating walls; and a plurality of organic electroluminescent media. The first electrodes are arranged in parallel on the substrate. The organic electroluminescent media are disposed on the first electrodes. The second electrodes are disposed on the organic electroluminescent media. The conducting lines containing the silver alloy connect to the first electrodes or the second electrodes. The silver alloy contained in the conducting lines has 80 to 99.8 mol % of silver; 0.1 to 10 mol % of copper; and 0.1 to 10 mol % of at least one transition metal selected from the group consisting of palladium (Pd), magnesium (Mg), gold (Au), platinum (Pt), and the combinations thereof.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: April 24, 2007
    Assignee: RiTdisplay Corporation
    Inventors: Yih Chang, Shang-Wei Chen, Tien Wang Huang, Tien-Rong Lu, Hsin Tzu Yao, Chih-Jen Yang
  • Patent number: 7205641
    Abstract: An integrated circuit device for converting an incident optical signal into an electrical signal comprises a semiconductor substrate, a well region formed inside the semiconductor substrate, a dielectric layer formed over the well region, and a layer of polysilicon for receiving the incident optical signal, formed over the dielectric layer, including a p-type portion, an n-type portion and an undoped portion disposed between the p-type and n-type portions, wherein the well region is biased to control the layer of polysilicon for providing the electrical signal.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: April 17, 2007
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Da Shiu, Chyh-Yih Chang, Ming-Dou Ker, Che-Hao Chuang
  • Publication number: 20070081282
    Abstract: An electrostatic discharge (ESD) protection apparatus for programmable device is provided. This ESD protection device provides a high impedance along the electrical path from the pad to the power system for preventing the programmable device from damages induced by ESD event; and the impedance can be intentionally decreased during the normal reading and writing operations.
    Type: Application
    Filed: March 16, 2006
    Publication date: April 12, 2007
    Inventors: Yan-Nan Li, Chyh-Yih Chang, Chun-Ming Wu, Chin-Huang Lai, Wen-Pin Chou
  • Publication number: 20070053121
    Abstract: An electronic static discharge (ESD) protection apparatus for a programmable device is provided. The apparatus can improve the turn-on efficiency and reduce the surface area of the chip efficiently by providing a low impedance current path which can sufficiently lower the voltage of the programmable device when ESD occurs. The ESD protection apparatus includes an ESD protection device, a programmable device, a first circuit, a second circuit, and a third circuit.
    Type: Application
    Filed: March 31, 2006
    Publication date: March 8, 2007
    Inventors: Chyh-Yih Chang, Yan-Nan Li, Kun-Tai Wu
  • Publication number: 20070014061
    Abstract: A level shifter ESD protection circuit with power-on-sequence consideration used for receiving a first signal and outputting a second signal is provided. The level shifter circuit includes an inverter, a first switch, a second switch, a voltage level shifting circuit, a first ESD clamp and a second ESD clamp circuits. When the first power supply has been powered on and the second power supply is off, the first and second switches will remain off resulting from the power-off of the second power supply. Therefore, the second power source would not be affected by the first power supply because of passing through the ESD protection circuit.
    Type: Application
    Filed: September 19, 2005
    Publication date: January 18, 2007
    Inventors: Chyh-Yih Chang, Kuo-Ching Chen
  • Patent number: 7138804
    Abstract: A system for measuring electrostatic discharge (ESD) characteristics of a semiconductor device that comprises at least one pulse generator generating ESD-scale pulses, a first point of the semiconductor device receiving a first ESD-scale pulse from the at least one pulse generator, a second point of the semiconductor device receiving the first ESD-scale pulse from the at least one pulse generator, at least a third point of the semiconductor device receiving a second ESD-scale pulse from the at least one pulse generator, and a data collector to collect data on the ESD characteristics of the semiconductor device.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: November 21, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Ming-Dou Ker, Chyh-Yih Chang, Chun-Lin Hou
  • Publication number: 20060254719
    Abstract: A mass-production packaging means suitable for mass-production packaging of an organic luminescent display. An organic electroluminescent display panel on which an organic luminescent device has been formed is first provided. Then, an UV laser is used to clean the surface of the organic electroluminescent display panel. A molding compound is applied on the organic electroluminescent display panel by a sizing system. Subsequently, a lid is aligned with the organic electroluminescent display panel and lamination is performed. Finally, the molding compound is irradiated with UV light to be cured. The package is thus completed.
    Type: Application
    Filed: July 13, 2006
    Publication date: November 16, 2006
    Inventors: Yih Chang, Mau-Kuo Wei, Jih-Yi Wang, Chou-Ho Shyu, Yung-Wei Lai
  • Publication number: 20060243661
    Abstract: A system for treating wastewater containing organic compounds is provided, comprising an anaerobic bioreactor, an aerobic bioreactor disposed rearwardly of the anaerobic bioreactor, and a membrane separation reactor disposed rearwardly of the aerobic bioreactor. The system is capable of removing organic pollutants in wastewater through biological treatment process and separating solid from the liquid ones by using a membrane. By employing the system for treating wastewater containing organic pollutants, organic pollutants can be effectively eliminated and the problem of scaling and fouling on the surface of the membrane prevented, thus achieving the objectives of lowering cost and improving efficiency.
    Type: Application
    Filed: March 14, 2006
    Publication date: November 2, 2006
    Applicant: Industrial Technology Research Institute
    Inventors: Huey-Song You, Ming-Jing Perage, Sheng-Shin Chang, Yih-Chang Chen, Shwu-Huey Perng
  • Publication number: 20060224801
    Abstract: This invention discloses a data access device for using in computer of power off status, which comprises a power multiplexer, a DC to DC converter, a serial bus signal to storage interface signal controller, a data storage interface signal multiplexer, and a controller. Therefore, if controller detects an external device wants to access data storage device of computer at power off, it will control power multiplexer to retrieve the standby power of the power device and process power transformation to provide a required power for driving the storage device, and by using serial bus signal to storage interface signal controller, external device can access the data from storage device at power off.
    Type: Application
    Filed: September 14, 2005
    Publication date: October 5, 2006
    Applicant: Industrial Technology Research Institute
    Inventors: Chih-Yang Chiu, Ching-Chin Huang, Teng-Chieh Yang, Tsahn-Yih Chang, Yang-Chih Huang, Li-Hao Hsiao
  • Patent number: 7110228
    Abstract: A separated power ESD protection circuit is disclosed. The separated power ESD protection circuit is coupled between a first and a second power lines. The separated power ESD protection circuit has a first diode, a second diode and a MOS transistor. The first diode has an anode and a cathode, wherein the anode is coupled to the first power line. The source of the MOS transistor is coupled to the second power line. The anode of the second diode is coupled to the second power line and cathode is coupled to the first power line. The first diode and the MOS transistor form a parasitic silicon-controlled rectifier (SCR) so as to provide a discharge route for ESD.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: September 19, 2006
    Assignee: Novatek Microelectronics Corp.
    Inventor: Chyh-Yih Chang
  • Patent number: 7098097
    Abstract: A mass-production packaging means suitable for mass-production packaging of an organic luminescent display. An organic electroluminescent display panel on which an organic luminescent device has been formed is first provided. Then, an UV laser is used to clean the surface of the organic electroluminescent display panel. A molding compound is applied on the organic electroluminescent display panel by a sizing system. Subsequently, a lid is aligned with the organic electroluminescent display panel and lamination is performed. Finally, the molding compound is irradiated with UV light to be cured. The package is thus completed.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: August 29, 2006
    Assignee: RiTdisplay Corporation
    Inventors: Yih Chang, Mau-Kuo Wei, Jih-Yi Wang, Chou-Ho Shyu, Yung-Wei Lai
  • Patent number: 7092227
    Abstract: An electrostatic discharge protection circuit includes a first terminal, a second terminal, an electrostatic discharge device coupled between the first and second terminals, and an active device coupled to the electrostatic discharge device and controlling an electrostatic current through the electrostatic discharge device. The electrostatic discharge device includes at least one of an SCR, an FOD, an active device, a BJT, and an MOS device.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: August 15, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Ming-Dou Ker, Tang-Kui Tseng, Hsin-Chin Jiang, Chyh-Yih Chang
  • Patent number: 7087170
    Abstract: A system for treating wastewater containing organic compounds is provided, comprising an anaerobic bioreactor, an aerobic bioreactor disposed rearwardly of the anaerobic bioreactor, and a membrane separation reactor disposed rearwardly of the aerobic bioreactor. The system is capable of removing organic pollutants in wastewater through biological treatment process and separating solid from the liquid ones by using a membrane. By employing the system for treating wastewater containing organic pollutants, organic pollutants can be effectively eliminated and the problem of scaling and fouling on the surface of the membrane prevented, thus achieving the objectives of lowering cost and improving efficiency.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: August 8, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Huey Song You, Ming Jing Perage, Sheng Shin Chang, Yih Chang Chen, Shwu Huey Perng
  • Patent number: 7075227
    Abstract: An organic electroluminescence display device is provided. The OEL device includes a substrate, a first electrode layer, a second electrode layer, an organic functional layer and at least one electrochromic medium layer. The first electrode layer is disposed on the substrate, the second electrode layer is disposed over the first electrode layer, and the organic functional layer and the electrochromic medium layer are disposed between the first electrode layer and the second electrode layer. Accordingly, the electrochromic medium layer is provided as a selective light valve to improve the reflection of the external light, and thus the contrast ratio of the organic electroluminescence display device is enhanced.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: July 11, 2006
    Assignee: RiTdisplay Corporation
    Inventors: Yih Chang, Tien-Rong Lu
  • Patent number: 7067887
    Abstract: A high voltage device for an electrostatic discharge protection circuit is provided. A silicon layer is disposed in a substrate. A first type well and a second type well are disposed in the silicon layer. A lightly doped region of a second type well is located next to the first type well. A heavily doped region of the second type well is located underneath a portion of the first type well and the lightly doped region. A gate structure is disposed over a portion of the first type well and the lightly doped region. A second type first doped region and a second type second doped region are disposed in the lightly doped region and the first type well on each side of the gate structure. An isolation structure is disposed in the lightly doped region. A first type doped region is disposed in the first type well.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: June 27, 2006
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chyh-Yih Chang, Li-Jen Hsien
  • Publication number: 20060131230
    Abstract: The present invention discloses a biological membrane filtration wastewater treatment system including a porous biological filtration bed zone and a membrane separation zone. The porous biological filtration bed zone has the dual function of providing biological treatment and higher filtration rates, wherein a fixed bed or moving bed is utilized so that the porous biological filtration bed zone has the advantages of high loading rates, high removal efficiencies, high stability and ease of operation. The membrane separation zone utilizes a membrane filtration module to filter an effluent from the porous biological filtration bed zone, so that solid particles therein are separated and remain in the system. Therefore, a high quality of effluent is obtained.
    Type: Application
    Filed: April 4, 2005
    Publication date: June 22, 2006
    Applicant: Industrial Technology Research Institute
    Inventors: Hsin Shao, Wang-Kuan Chang, Ren-Yang Horng, Ming-Jing Perng, Min-Chao Chang, Wen-Yuang Tzou, Yih-Chang Chen