Patents by Inventor Yung-Chia Kuan

Yung-Chia Kuan 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).

  • Patent number: 7405113
    Abstract: A thin film transistor is provided, including a substrate, a gate, a first dielectric layer, a channel layer, a source/drain and a second dielectric layer. The gate is disposed on the substrate, and the gate and the substrate are covered with the first dielectric layer. The channel layer is at least disposed on the first dielectric layer above the gate. The source/drain is disposed on the channel layer. The source/drain includes a first barrier layer, a conductive layer and a second barrier layer. The first barrier layer is disposed between the conductive layer and the channel layer. The conductive layer is covered with the first barrier layer and the second barrier layer. The source/drain is covered with the second dielectric layer. Accordingly, the variation of electric characters can be reduced. Moreover, a method for fabricating a thin film transistor is also provided.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: July 29, 2008
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chuan-Yi Wu, Chin-Chuan Lai, Yung-Chia Kuan, Wei-Jen Tai
  • Publication number: 20080057202
    Abstract: A method of fabricating of a metal line by a wet process is provided. A catalytic adhesive layer is formed on an insulating substrate. A fist metal layer is formed by an electoless plating process, and then, a second metal layer is formed by an electoless plating process or an electoplating process. The first and the second metal layers are patterned to form a metal line.
    Type: Application
    Filed: November 21, 2006
    Publication date: March 6, 2008
    Applicants: TAIWAN TFT LCD ASSOCIATION, CHUNGHWA PICTURE TUBES, LTD., AU OPTRONICS CORPORATION, HANNSTAR DISPLAY CORPORATION, CHI MEI OPTOELECTRONICS CORPORATION, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TPO DISPLAYS CORP.
    Inventors: CHIEN-WEI WU, SHUO-WEI LIANG, WAN-CHI CHEN, CHENG-TZU YANG, SAI-CHANG LIU, PO-CHIU CHEN, MIN-CHUAN WANG, YUNG-CHIA KUAN
  • Publication number: 20070269940
    Abstract: A thin film transistor is provided, including a substrate, a gate, a first dielectric layer, a channel layer, a source/drain and a second dielectric layer. The gate is disposed on the substrate, and the gate and the substrate are covered with the first dielectric layer. The channel layer is at least disposed on the first dielectric layer above the gate. The source/drain is disposed on the channel layer. The source/drain includes a first barrier layer, a conductive layer and a second barrier layer. The first barrier layer is disposed between the conductive layer and the channel layer. The conductive layer is covered with the first barrier layer and the second barrier layer. The source/drain is covered with the second dielectric layer. Accordingly, the variation of electric characters can be reduced. Moreover, a method for fabricating a thin film transistor is also provided.
    Type: Application
    Filed: August 1, 2007
    Publication date: November 22, 2007
    Inventors: CHUAN-YI WU, Chin-Chuan Lai, Yung-Chia Kuan, Wei-Jen Tai
  • Patent number: 7291885
    Abstract: A thin film transistor is provided, including a substrate, a gate, a first dielectric layer, a channel layer, a source/drain and a second dielectric layer. The gate is disposed on the substrate, and the gate and the substrate are covered with the first dielectric layer. The channel layer is at least disposed on the first dielectric layer above the gate. The source/drain is disposed on the channel layer. The source/drain includes a first barrier layer, a conductive layer and a second barrier layer. The first barrier layer is disposed between the conductive layer and the channel layer. The conductive layer is covered with the first barrier layer and the second barrier layer. The source/drain is covered with the second dielectric layer. Accordingly, the variation of electric characters can be reduced. Moreover, a method for fabricating a thin film transistor is also provided.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: November 6, 2007
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chuan-Yi Wu, Chin-Chuan Lai, Yung-Chia Kuan, Wei-Jen Tai
  • Publication number: 20070231974
    Abstract: A thin film transistor having a substrate, a bottom layer, a gate, a gate-insulating layer, a channel layer and a source/drain, is provided. The bottom layer is disposed on the substrate. The copper gate is disposed on the bottom layer. The gate-insulating layer covers the copper gate and the bottom layer. The channel layer is disposed on the gate-insulating layer and above the gate. The source/drain is disposed at two sides of the channel layer which is above the gate. By disposing the bottom layer, the problem of poor adhesion between the copper gate and the substrate can be solved.
    Type: Application
    Filed: March 30, 2006
    Publication date: October 4, 2007
    Inventors: Hsien-Kun Chiu, Yung-Chia Kuan, Kuo-Sheng Sun
  • Patent number: 7229863
    Abstract: A method for fabricating a thin film transistor is provided. First, a gate is formed on a substrate. A gate-insulating layer is formed to cover the gate. A patterned semiconductor layer is formed on the gate-insulating layer. A first and a second conductive layer are formed on the patterned semiconductor layer in sequence. The second conductive layer is patterned such that each side of thereof above the gate has a taper profile and the first conductive layer is exposed. A first plasma process is performed to transform the surface and the taper profile of the second conductive layer into a first protection layer. The first conductive layer not covered by the first protection layer and the second conductive layer is removed to form a source/drain. The source/drain is with fine dimensions and the diffusion of metallic ions from the second conductive layer to the patterned semiconductor layer can be avoided.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: June 12, 2007
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chuan-Yi Wu, Yung-Chia Kuan, Chia-Chien Lu, Chin-Chuan Lai
  • Publication number: 20070093003
    Abstract: A method for fabricating a thin film transistor is provided. First, a gate is formed on a substrate. A gate-insulating layer is formed to cover the gate. A patterned semiconductor layer is formed on the gate-insulating layer. A first and a second conductive layer are formed on the patterned semiconductor layer in sequence. The second conductive layer is patterned such that each side of thereof above the gate has a taper profile and the first conductive layer is exposed. A first plasma process is performed to transform the surface and the taper profile of the second conductive layer into a first protection layer. The first conductive layer not covered by the first protection layer and the second conductive layer is removed to form a source/drain. The source/drain is with fine dimensions and the diffusion of metallic ions from the second conductive layer to the patterned semiconductor layer can be avoided.
    Type: Application
    Filed: October 25, 2005
    Publication date: April 26, 2007
    Inventors: Chuan-Yi Wu, Yung-Chia Kuan, Chia-Chien Lu, Chin-Chuan Lai
  • Publication number: 20070046198
    Abstract: A method for fabricating a cover plate of an organic electroluminescent device comprising the following steps is provided. First, a substrate is provided, wherein the substrate has a bonding region. Then, a liquid-state desiccant layer is formed on the substrate, wherein the liquid-state desiccant layer is surrounded by the bonding region. Next, the liquid-state desiccant layer is cured to form a desiccant layer. Then, the bonding region of the substrate is cleaned. As mentioned above, the contaminants on the bonding region can be drastically reduced. Moreover, an organic electroluminescent device and a cover plate thereof are also provided.
    Type: Application
    Filed: August 25, 2005
    Publication date: March 1, 2007
    Inventors: Yung-Chia Kuan, Wei-Jen Tai
  • Publication number: 20070045734
    Abstract: A thin film transistor is provided, including a substrate, a gate, a first dielectric layer, a channel layer, a source/drain and a second dielectric layer. The gate is disposed on the substrate, and the gate and the substrate are covered with the first dielectric layer. The channel layer is at least disposed on the first dielectric layer above the gate. The source/drain is disposed on the channel layer. The source/drain includes a first barrier layer, a conductive layer and a second barrier layer. The first barrier layer is disposed between the conductive layer and the channel layer. The conductive layer is covered with the first barrier layer and the second barrier layer. The source/drain is covered with the second dielectric layer. Accordingly, the variation of electric characters can be reduced. Moreover, a method for fabricating a thin film transistor is also provided.
    Type: Application
    Filed: August 29, 2005
    Publication date: March 1, 2007
    Inventors: Chuan-Yi Wu, Chin-Chuan Lai, Yung-Chia Kuan, Wei-Jen Tai
  • Publication number: 20070018570
    Abstract: An organic electroluminescence device comprising a plurality of first electrodes, a plurality of first auxiliary electrodes, a plurality of second auxiliary electrodes, a plurality of organic emitting patterns and a plurality of second electrodes is provided. The first electrodes are arranged on a substrate. The first auxiliary electrodes are disposed on at least one edge of the substrate, wherein each first auxiliary electrode is electrically connected with each first electrode. The second auxiliary electrodes are disposed on another edge of the substrate, wherein the first auxiliary electrodes and the second auxiliary electrodes are constituted of a double layer of an aluminium-neodymium (Al—Nd) alloy layer and an aluminium-neodymium nitride layer. The organic emitting patterns are arranged over the first electrodes. The second electrodes are arranged over the organic emitting patterns, wherein each second electrode is electrically connected to each second auxiliary electrode.
    Type: Application
    Filed: July 20, 2005
    Publication date: January 25, 2007
    Inventors: Wei-Jen Tai, Yung-Chia Kuan, Mu-Ching Hung
  • Publication number: 20060286804
    Abstract: A method for forming a patterned material layer comprises the following steps. First, a material layer is formed on a substrate, and then a patterned positive photoresist layer is formed on the material layer. Next, the material layer is etched by using the patterned positive photoresist layer as a mask. Afterwards, a developing process is performed to remove the patterned positive photoresist layer. As mentioned above, the cost by using the method of the present invention can be reduced.
    Type: Application
    Filed: June 15, 2005
    Publication date: December 21, 2006
    Inventors: Chuan-Yi Wu, Chin-Long Chen, Yung-Chia Kuan