Patents by Inventor Chin Cheng Chien

Chin Cheng Chien 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: 7473606
    Abstract: A method for fabricating a metal-oxide semiconductor transistor is disclosed. First, a semiconductor substrate having a gate structure thereon is provided, and a spacer is formed around the gate structure. An ion implantation process is performed to implant a molecular cluster containing boron into the semiconductor substrate surrounding the spacer for forming a source/drain region. The weight ratio of each boron atom within the molecular cluster is preferably less than 10%. Thereafter, a millisecond annealing process is performed to activate the molecular cluster within the source/drain region.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: January 6, 2009
    Assignee: United Microelectronics Corp.
    Inventors: Tsai-Fu Hsiao, Ching-I Li, Po-Yuan Chen, Chun-An Lin, Hsiang-Ying Wang, Chao-Chun Chen, Chin-Cheng Chien
  • Publication number: 20080293222
    Abstract: A method for forming a SiGe epitaxial layer is described. A first SEG process is performed under a first condition, consuming about 1% to 20% of the total process time for forming the SiGe epitaxial layer. Then, a second SEG process is performed under a second condition, consuming about 99% to 80% of the total process time. The first condition and the second condition include different temperatures or pressures. The first and the second SEG processes each uses a reactant gas that includes at least a Si-containing gas and a Ge-containing gas.
    Type: Application
    Filed: July 24, 2008
    Publication date: November 27, 2008
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Jih-Shun Chiang, Hung-Lin Shih, Li-Yuen Tang, Tian-Fu Chiang, Ming-Chi Fan, Chin-I Liao, Chin-Cheng Chien
  • Publication number: 20080258178
    Abstract: A method of forming a MOS transistor, in which a co-implantation is performed to implant an implant into a source region and a drain region or a halo implanted region to effectively prevent dopants from over diffusion in the source region and the drain region or the halo implanted region, for obtaining a good junction profile and improving short channel effect. The implant comprises carbon, a hydrocarbon, or a derivative of the hydrocarbon, such as one selected from a group consisting of CO, CO2, CxHy+, and (CxHy)n+, wherein x is a number of 1 to 10, y is a number of 4 to 20, and n is a number of to 1000.
    Type: Application
    Filed: May 27, 2008
    Publication date: October 23, 2008
    Inventors: Hsiang-Ying Wang, Chin-Cheng Chien, Tsai-Fu Hsiao, Ming-Yen Chien, Chao-Chun Chen
  • Patent number: 7435658
    Abstract: A method of manufacturing a MOS transistor is provided. A substrate having a gate structure thereon is provided. A first spacer is formed on the sidewall of the gate structure. A pre-amorphization implantation is carried out to amorphize a portion of the substrate. A doped source/drain extension region is formed in the substrate on each side of the first spacer. A second spacer is formed on the sidewall of the first spacer. A doped source/drain region is formed in the substrate on each side of the second spacer. Thereafter, a solid phase epitaxial process is carried out to re-crystallize the amorphized portion of the substrate and activate the doped source/drain extension region and the doped source/drain region to form a source/drain terminal. Finally, a post-annealing operation is performed.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: October 14, 2008
    Assignee: United Microelectronics Corp.
    Inventors: Yu-Ren Wang, Chin-Cheng Chien, Hsiang-Ying Wang, Neng-Hui Yang
  • Publication number: 20080233722
    Abstract: A method of forming a selective area semiconductor compound epitaxy layer is provided. The method includes the step of using two silicon-containing precursors as gas source for implementing a process of manufacturing the selective area semiconductor compound epitaxy layer, so as to form a semiconductor compound epitaxy layer on an exposed monocrystalline silicon region of a substrate.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 25, 2008
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Chin-I Liao, Chin-Cheng Chien, Hou-Jun Wu, Po-Lun Cheng
  • Patent number: 7396717
    Abstract: A method of forming a MOS transistor, in which a co-implantation is performed to implant an implant into a source region and a drain region or a halo implanted region to effectively prevent dopants from over diffusion in the source region and the drain region or the halo implanted region, for obtaining a good junction profile and improving short channel effect. The implant comprises carbon, a hydrocarbon, or a derivative of the hydrocarbon, such as one selected from a group consisting of C, Chd xHy+, and (CxHy)n+, wherein x is a number of 1 to 10, y is a number of 4 to 20, and n is a number of 1 to 1000.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: July 8, 2008
    Assignee: United Microelectronics Corp.
    Inventors: Hsiang-Ying Wang, Chin-Cheng Chien, Tsai-Fu Hsiao, Ming-Yen Chien, Chao-Chun Chen
  • Publication number: 20080142886
    Abstract: The method of the present invention includes providing a semiconductor substrate with a recess; performing a pre-cleaning step on the semiconductor substrate; and performing a first reduction step, a lateral etching step and a second reduction step on the semiconductor substrate. The MOS structure includes a semiconductor substrate, a gate structure on the semiconductor substrate, a pair of recesses with beak sections extending to and under the gate structure, and a strain material filling the recess. The recess inside the semiconductor substrate processed by the method including the lateral etching step forms a beak section.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 19, 2008
    Inventors: Chin-I Liao, Chin-Cheng Chien
  • Publication number: 20080076236
    Abstract: A method for forming a SiGe epitaxial layer is described. A first SEG process is performed under a first condition, consuming about 1% to 20% of the total process time for forming the SiGe epitaxial layer. Then, a second SEG process is performed under a second condition, consuming about 99% to 80% of the total process time. The first condition and the second condition include different temperatures or pressures. The first and the second SEG processes each uses a reactant gas that includes at least a Si-containing gas and a Ge-containing gas.
    Type: Application
    Filed: September 21, 2006
    Publication date: March 27, 2008
    Inventors: Jih-Shun Chiang, Hung-Lin Shih, Li-Yuen Tang, Tian-Fu Chiang, Ming-Chi Fan, Chin-I Liao, Chin-Cheng Chien
  • Publication number: 20070254439
    Abstract: A semiconductor transistor includes a substrate, a gate insulating layer positioned on the surface of the substrate, a gate positioned on the gate insulating layer, a channel region positioned in the substrate corresponding to the gate, and a source region and a drain region respectively positioned alongside the channel region. The source region and the drain region are mainly made of a first material and a second material, wherein the first material and the second material have a same lattice structure and different spacing. The source region and the drain region each include a main region in which a percentage of the second material is constant, and a peripheral region in which a percentage of the second material is graded.
    Type: Application
    Filed: July 3, 2007
    Publication date: November 1, 2007
    Inventor: Chin-Cheng Chien
  • Publication number: 20070238234
    Abstract: A method of forming a MOS transistor, in which a co-implantation is performed to implant an implant into a source region and a drain region or a halo implanted region to effectively prevent dopants from over diffusion in the source region and the drain region or the halo implanted region, for obtaining a good junction profile and improving short channel effect. The implant comprises carbon, a hydrocarbon, or a derivative of the hydrocarbon, such as one selected from a group consisting of C, CxHy+, and (CxHy)n+, wherein x is a number of 1 to 10, y is a number of 4 to 20, and n is a number of 1 to 1000.
    Type: Application
    Filed: April 3, 2006
    Publication date: October 11, 2007
    Inventors: Hsiang-Ying Wang, Chin-Cheng Chien, Tsai-Fu Hsiao, Ming-Yen Chien, Chao-Chun Chen
  • Publication number: 20070228464
    Abstract: A method of forming a MOS transistor, in which a co-implantation is performed to implant an implant into a source region and a drain region or a halo implanted region to effectively prevent dopants from over diffusion in the source region and the drain region or the halo implanted region, for obtaining a good junction profile and improving short channel effect. The implant comprises carbon, a hydrocarbon, or a derivative of the hydrocarbon, such as one selected from a group consisting of C, CxHy+, and (CxHy)n+, wherein x is a number of 1 to 10, y is a number of 4 to 20, and n is a number of 1 to 1000.
    Type: Application
    Filed: May 14, 2007
    Publication date: October 4, 2007
    Inventors: Hsiang-Ying Wang, Chin-Cheng Chien, Tsai-Fu Hsiao, Ming-Yen Chien, Chao-Chun Chen
  • Publication number: 20070196990
    Abstract: A method for fabricating a metal-oxide semiconductor transistor is disclosed. First, a semiconductor substrate having a gate structure thereon is provided, and a spacer is formed around the gate structure. An ion implantation process is performed to implant a molecular cluster containing boron into the semiconductor substrate surrounding the spacer for forming a source/drain region. The weight ratio of each boron atom within the molecular cluster is preferably less than 10%. Thereafter, a millisecond annealing process is performed to activate the molecular cluster within the source/drain region.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 23, 2007
    Inventors: Tsai-Fu Hsiao, Ching-I Li, Po-Yuan Chen, Chun-An Lin, Hsiang-Ying Wang, Chao-Chun Chen, Chin-Cheng Chien
  • Publication number: 20070070647
    Abstract: A planar light source, which includes a first substrate, a plurality of electrode pairs, a second substrate, a plurality of side strips and a plurality of spacers, is disclosed. The electrode pairs are disposed on the first substrate. The second substrate is disposed above the first substrate. The side strips are disposed between the first substrate and the second substrate so that a discharge chamber is defined by the first substrate, the second substrate and the side strips. The spacers are disposed in the discharge chamber and serve as supporters between the first substrate and the second substrate. The spacers are disposed corresponding to the electrode pairs. A discharge gas is filled in the discharge chamber. The planar light source is easily to be produced and capable of reducing manufacturing cost.
    Type: Application
    Filed: September 27, 2005
    Publication date: March 29, 2007
    Inventors: Chu-Chi Ting, Te-Chu Lu, Chin-Cheng Chien
  • Publication number: 20070037373
    Abstract: A salicide process contains providing a silicon substrate that comprises at least a predetermined salicide region, performing a cluster ion implantation process to form an amorphized layer in the predetermined salicide region of the silicon substrate near, forming a metal layer on the surface of the amorphized layer, and reacting the metal layer with the amorphized layer to form a silicide layer on the surface of the silicon substrate.
    Type: Application
    Filed: August 8, 2006
    Publication date: February 15, 2007
    Inventors: Tsai-Fu Hsiao, Chin-Cheng Chien, Kuo-Tai Huang
  • Publication number: 20060214236
    Abstract: A semiconductor transistor includes a substrate, a gate insulating layer positioned on the surface of the substrate, a gate positioned on the gate insulating layer, a channel region positioned in the substrate corresponding to the gate, and a source region and a drain region respectively positioned alongside the channel region. The source region and the drain region are mainly made of a first material and a second material, wherein the first material and the second material have a same lattice structure and different spacing. The source region and the drain region each include a main region in which a percentage of the second material is constant, and a peripheral region in which a percentage of the second material is graded.
    Type: Application
    Filed: March 22, 2005
    Publication date: September 28, 2006
    Inventor: Chin-Cheng Chien
  • Patent number: 7060547
    Abstract: A method for forming a junction region of a semiconductor device is disclosed. The steps of the method include providing a semiconductor substrate. A gate structure is formed on the semiconductor substrate. A dopant is implanted into the semiconductor substrate to form the junction region. An insulator layer is formed on the gate structure and the semiconductor substrate. A carbon-containing plasma treatment is performed to the insulator layer. A spacer is formed on a side-wall of the gate structure and the dopant is implanted into the semiconductor substrate to form a source/drain region next to the junction region. A heat treatment is performed to the semiconductor substrate.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: June 13, 2006
    Assignee: United Microelectronics Corp.
    Inventors: Yu-Kun Chen, Neng-Hui Yang, Chin-Cheng Chien, Hsiang-Ying Wang
  • Patent number: 7037793
    Abstract: A method of forming a transistor involves firstly forming at least one gate structure on a semiconductor substrate. Then, a surface cleaning process is performed. In the surface cleaning process, a chemical oxidation method is utilized for forming a first oxide layer on a surface of the semiconductor substrate not covered with the gate structure and the first oxide layer is removed subsequently. Finally, a selective epitaxial growth method is utilized for forming a first epitaxial layer on the surface of the semiconductor substrate.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: May 2, 2006
    Assignee: United Microelectronics Corp.
    Inventors: Chin-Cheng Chien, Ya-Lun Cheng, Yu-Kun Chen
  • Patent number: 7034905
    Abstract: A liquid crystal display panel is provided. The LCD panel has a first substrate having at least a conductive material layer thereon, a second substrate having at least a repair line positioned in a predetermined area, and a liquid crystal layer positioned between the first substrate and the second substrate. The predetermined area is underneath the first substrate excluding the portions having the conductive material layer, thus reducing RC delay of the repair line.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: April 25, 2006
    Assignee: Chi Mei Optoelectronics Corporation
    Inventors: Wen-Jyh Sah, Chin-Cheng Chien
  • Patent number: 6995827
    Abstract: A liquid crystal display mainly includes a first substrate and a second substrate; a liquid crystal having a negative dielectric constant anisotropy between the first and second substrates; and an array of first protrusions, second protrusions and third protrusions for setting the orientation of liquid crystal molecules inside pixels to a plurality of mutually different directions. The first protrusions are formed on pixel electrodes of the second substrate. Every two of the first protrusions are arranged substantially in a V-shaped pattern. The first and second protrusions are arranged alternately and in parallel to one another. The liquid crystal display of the present invention is provided with a plurality of first capacitor electrodes each in a K-shaped pattern and a plurality of second capacitor electrodes each in a V-shaped pattern wherein the first and second capacitor electrodes and the first protrusions are formed in spatially opposed relation to one another.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: February 7, 2006
    Assignee: Chi Mei Optoelectronics Corp.
    Inventors: Chin Cheng Chien, Wang Yang Li
  • Patent number: 6991991
    Abstract: A method for preventing to form a spacer undercut in SEG preclean process is provided. This present invention utilizes HFEG solution to etch the first spacer and the second spacer simultaneously, which can prevent from producing a spacer undercut, meanwhile; a native oxide layer upon a surface of a semiconductor substrate is removed. Hence, the clean surface on the semiconductor substrate is obtained. This method includes the steps as follows: Firstly, the native oxide layer upon the surface of the semiconductor substrate is removed by DHF (HF in deionized water) solution. Then, etching the first spacer and the second spacer at the same time by HFEG (HF diluted by ethylene glycol) solution. Also, the native oxide upon the semiconductor substrate is removed. Therefore, it obtains the clean semiconductor surface without a serious spacer undercut.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: January 31, 2006
    Assignee: United Microelectronics Corp.
    Inventors: Ya-Lun Cheng, Chin-Cheng Chien, Neng-Hui Yang, Yu-Kun Chen