Patents by Inventor Ching-Fa Yeh

Ching-Fa Yeh 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: 11916031
    Abstract: A semiconductor device including a first die and a second die bonded to one another. The first die includes a first passivation layer over a substrate, and first bond pads in the first passivation layer. The second die includes a second passivation layer, which may be bonded to the first passivation layer, and second bond pads in the second passivation layer, which may be bonded to the first bond pads. The second bond pads include inner bond pads and outer bond pads. The outer bond pads may have a greater diameter than the inner bond pads as well as the first bond pads.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: February 27, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Chia Hu, Ching-Pin Yuan, Sung-Feng Yeh, Sen-Bor Jan, Ming-Fa Chen
  • Patent number: 7115449
    Abstract: The present invention provides a method for fabrication of polycrystalline silicon thin film transistors, which forms a silicon spacer on the sidewall of the active layer of a thin film transistor (TFT) by way of anisotropic plasma etching in a single direction. The silicon spacer provides a mechanism for laser recrystallization on the sidewall to prevent the active layer from shrinkage or shelling-off after the laser recrystallization. According to the present invention, large grains can be formed in the channel without additional mask during production. By doing so, the characteristics of the components are enhanced; the uniformity is improved; and, the production cost is lowered. Therefore, this technique will play an important role in the fields of low temperature polycrystalline silicon thin film transistor (LTPS-TFT).
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: October 3, 2006
    Assignee: National Chiao Tung University
    Inventors: Ching-Fa Yeh, Tien-Fu Chen, Jen-Chung Lou
  • Patent number: 7109075
    Abstract: A method for fabricating polycrystalline silicon film transistors, which includes a polysilicon spacer capping onto a sidewall of an active layer in the thin film transistors by an isotropic dry etching of the silicon film. This method suppresses the shrinkage of the active layer during recrystallization by the laser. Large grains are formed in the channel after recrystallization utilizing a high-energy continuous wavelength laser or an excimer laser annealing the active layer. This process does not require an additional mask. Uniform arrangement of grain boundaries and large grain sizes promotes uniformity of performance of the device, which is important in the fields of low temperature polycrystalline silicon thin film transistors (LTPS-TFTs).
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: September 19, 2006
    Assignee: National Chiao Tung University
    Inventors: Ching-Fa Yeh, Tien-Fu Chen, Jen-Chung Lou
  • Patent number: 6903029
    Abstract: The present invention provides a technique to reduce a stress of thick spin-on dielectric layer by forming a sandwich dielectric structure, wherein a first dielectric layer is formed on a substrate by spin coating, a liquid phase deposited (LPD) silica layer is formed the first dielectric layer, and a second dielectric layer is formed on the LPD silica layer by spin coating. The LPD silica layer can be further subjected to a nitrogen plasma treatment to enhance its thermal stability and anti-water penetration ability.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: June 7, 2005
    Assignee: National Science Council
    Inventors: Ching-Fa Yeh, Yueh-Chuan Lee, Chih-Chuan Hsu, Kwo-Hau Wu, Shuo-Cheng Wang
  • Publication number: 20040266074
    Abstract: The present invention provides a method for fabrication of polycrystalline silicon thin film transistors, which forms a silicon spacer on the sidewall of the active layer of a thin film transistor (TFT) by way of anisotropic plasma etching in a single direction. The silicon spacer provides a mechanism for laser recrystallization on the sidewall to prevent the active layer from shrinkage or shelling-off after the laser recrystallization. According to the present invention, large grains can be formed in the channel without additional mask during production. By doing so, the characteristics of the components are enhanced; the uniformity is improved; and, the production cost is lowered. Therefore, this technique will play an important role in the fields of low temperature polycrystalline silicon thin film transistor (LTPS-TFT).
    Type: Application
    Filed: June 16, 2004
    Publication date: December 30, 2004
    Applicant: National Chiao Tung University
    Inventors: Ching-Fa Yeh, Tien-Fu Chen, Jen-Chung Lou
  • Publication number: 20040258932
    Abstract: The present invention provides a technique to reduce a stress of thick spin-on dielectric layer by forming a sandwich dielectric structure, wherein a first dielectric layer is formed on a substrate by spin coating, a liquid phase deposited (LPD) silica layer is formed the first dielectric layer, and a second dielectric layer is formed on the LPD silica layer by spin coating. The LPD silica layer can be further subjected to a nitrogen plasma treatment to enhance its thermal stability and anti-water penetration ability.
    Type: Application
    Filed: July 19, 2004
    Publication date: December 23, 2004
    Applicant: National Science Council
    Inventors: Ching-Fa Yeh, Yueh-Chuan Lee, Chih-Chuan Hsu, Kwo-Hau Wu, Shuo-Cheng Wang
  • Publication number: 20040241921
    Abstract: The present invention provides a method for fabrication of polycrystalline silicon thin film transistors, which comprises polysilicon spacer capping onto the sidewall of the active layer in thin film transistors by an isotropic dry etching for silicon film. This method can suppress the shrinkage of the active layer during recrystallization by laser. Large grains can be formed in the channel after recrystallization of high-energy continuous wavelength laser or recrystallization of excimer laser annealing on active layer. This process does not require any additional mask. Uniform arrangement of grain boundaries and large grain sizes can promote device performance uniformity. This technique will play an important role in the fields of low temperature polycrystalline silicon thin film transistors (LTPS-TFTs).
    Type: Application
    Filed: June 24, 2003
    Publication date: December 2, 2004
    Applicant: National Chiao Tung University
    Inventors: Ching-Fa Yeh, Tien-Fu Chen, Jen-Chung Lou
  • Patent number: 6774461
    Abstract: The present invention provides a technique to reduce a stress of thick spin-on dielectric layer by forming a sandwich dielectric structure, wherein a first dielectric layer is formed on a substrate by spin coating, a liquid phase deposited (LPD) silica layer is formed the first dielectric layer, and a second dielectric layer is formed on the LPD silica layer by spin coating. The LPD silica layer can be further subjected to a nitrogen plasma treatment to enhance its thermal stability and anti-water penetration ability.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: August 10, 2004
    Assignee: National Science Council
    Inventors: Ching-Fa Yeh, Yueh-Chuan Lee, Chih-Chuan Hsu, Kwo-Hau Wu, Shuo-Cheng Wang
  • Publication number: 20030219978
    Abstract: The present invention provides an apparatus for liquid phase deposition, comprising: a saturation reaction system, including a mixture trough, at least two supply devices for raw materials, a stirrer device, a filter device, and valve control devices; a steady-flow over-saturation loop reaction system, including an over-saturation reaction trough, at least one liquid level control trough, at least two supply devices for raw materials, a stirrer device, a filter device, and valve control devices; an automatic solution concentration monitoring system, for controlling the reactant concentrations; and a waste liquid recycling system, comprising at least two storage troughs, a recycled waste liquid level sensor, a recycled waste liquid sensor, and valve control devices.
    Type: Application
    Filed: December 23, 2002
    Publication date: November 27, 2003
    Applicant: Industrial Technology Research Institute
    Inventors: Muh-Wang Liang, Pang-Min Chiang, Chen Max, Jen-Rong Huang, Ching-Fa Yeh
  • Patent number: 6653245
    Abstract: A method for liquid phase deposition, including the steps of providing at least two raw materials from at least two supply devices of a saturation reaction system into a mixture trough and stirring until saturation occurs, filtering out unnecessary solid-state particles, and providing saturated and filtered liquid into an over-saturation reaction trough of a steady-flow over-saturation loop reaction system and stopping the saturated and filtered liquid when the over-saturation reaction trough is filled and the saturated and filtered liquid over-flows into a liquid level control trough to a pre-determined level. The method also includes the steps of providing a substrate in the over-saturation reaction trough, providing reactants from at least two supply devices into the over-saturation reaction trough, and depositing a thin film onto the substrate when the saturated liquid becomes over-saturated.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: November 25, 2003
    Assignee: Industrial Technology Research Institute
    Inventors: Muh-Wang Liang, Pang-Min Chiang, Chen Max, Jen-Rong Huang, Ching-Fa Yeh
  • Publication number: 20020182851
    Abstract: The present invention discloses a technique of enhancing adhesion between a passivation layer and a low-K dielectric layer, in which a SiO2 layer as the passivation formed on the low-K dielectric layer is subjected to N2O plasma annealing. This technique is useful in improving the yield of a process for preparing Cu damascene interconnection.
    Type: Application
    Filed: March 28, 2002
    Publication date: December 5, 2002
    Applicant: NATIONAL SCIENCE COUNCIL
    Inventors: Ching-Fa Yeh, Yueh-Chuan Lee, Chien-Hsing Lin
  • Patent number: 6486057
    Abstract: The present invention discloses a technique of enhancing adhesion between a passivation layer and a low-K dielectric layer, in which a SiO2 layer as the passivation formed on the low-K dielectric layer is subjected to N2O plasma annealing. This technique is useful in improving the yield of a process for preparing Cu damascene interconnection.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: November 26, 2002
    Assignee: National Science Council
    Inventors: Ching-Fa Yeh, Yueh-Chuan Lee, Chien-Hsing Lin
  • Publication number: 20020173170
    Abstract: The present invention provides an apparatus for liquid phase deposition, comprising: a saturation reaction system, including a mixture trough, at least two supply devices for raw materials, a stirrer device, a filter device, and valve control devices; a steady-flow over-saturation loop reaction system, including an over-saturation reaction trough, at least one liquid level control trough, at least two supply devices for raw materials, a stirrer device, a filter device, and valve control devices; an automatic solution concentration monitoring system, for controlling the reactant concentrations; and a waste liquid recycling system, comprising at least two storage troughs, a recycled waste liquid level sensor, a recycled waste liquid sensor, and valve control devices.
    Type: Application
    Filed: June 6, 2001
    Publication date: November 21, 2002
    Applicant: Industrial Technology Research Institute
    Inventors: Muh-Wang Liang, Pang-Min Chiang, Chen Max, Jen-Rong Huang, Ching-Fa Yeh
  • Publication number: 20020142580
    Abstract: The present invention provides a technique to reduce a stress of thick spin-on dielectric layer by forming a sandwich dielectric structure, wherein a first dielectric layer is formed on a substrate by spin coating, a liquid phase deposited (LPD) silica layer is formed the first dielectric layer, and a second dielectric layer is formed on the LPD silica layer by spin coating. The LPD silica layer can be further subjected to a nitrogen plasma treatment to enhance its thermal stability and anti-water penetration ability.
    Type: Application
    Filed: February 15, 2002
    Publication date: October 3, 2002
    Applicant: NATIONAL SCIENCE COUNCIL
    Inventors: Ching-Fa Yeh, Yueh-Chuan Lee, Chih-Chuan Hsu, Kwo-Hau Wu, Shuo-Cheng Wang
  • Patent number: 6294832
    Abstract: The present invention is related to a interconnection structure with Cu interconnects and low-k dielectric, in which a barrier dielectric liner made of a nitrogen-containing liquid-phase-deposition (LPD) fluorosilicate glass (FSG) film is used to replace a barrier metal layer and an oxide liner.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: September 25, 2001
    Assignee: National Science Council
    Inventors: Ching-Fa Yeh, Yueh-Chuan Lee, Kwo-Hau Wu, Yuh-Ching Su
  • Patent number: 6251753
    Abstract: A low dielectric constant (k) material, such as methylsilsesquioxane (MSQ), used as an interlevel dielectric is expected to reduce the parasitic capacitance in integrated circuit. However, MSQ film can be easily degraded during resist ashing after the film is etched with the damascene trenches being created. The present invention discloses an innovative sidewall capping technology to solve the degradation issue. Prior to resist ashing, a high-quality, low-k oxide film is selectively deposited onto the sidewalls of MSQ trenches using selective liquid-phase deposition. Experimental results demonstrate that the capping oxide can effectively protect the sidewalls of MSQ trenches from ashing-induced degradation.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: June 26, 2001
    Inventors: Ching-Fa Yeh, Yueh-Chuan Lee, Yuh-Ching Su, Kwo-Hau Wu
  • Patent number: 6087276
    Abstract: A method of making a polysilicon thin-film transistor is presented. Device characteristics are improved when a silicon dioxide capping layer is formed by an ion plating method.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: July 11, 2000
    Assignee: National Science Council
    Inventors: Ching-Fa Yeh, Tai-Ju Chen, Jiann-Shiun Kao
  • Patent number: 6039857
    Abstract: The present invention relates to a method for forming a polyoxide film on a doped polysilicon layer, which is suitable for use as an inter-polysilicon polyoxide film between a doped polysilicon floating gate and a doped polysilicon control gate. The method includes conducting an electrolytic reaction at a room, temperature such that a polyoxide layer is formed on a doped polysilicon layer acting as an anode. The polyoxide layer is preferably further subjected with a rapid thermal processing to improve its electrical characteristics.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: March 21, 2000
    Inventors: Ching-Fa Yeh, Jeng-Shu Liu
  • Patent number: 5776835
    Abstract: A method is capable of providing a semiconductor device with a gate having thereon a thicker silicide or metal layer and further having a lower interconnect resistance. The method is further capable of providing the semiconductor device with a polysilicon gate having a recessed tungsten structure for prevention of short circuit between the gate and the drain or the source. For forming a grooved gate structure, a photo-resist is formed on the polysilicon gate before growing on the entire surface of the silicon substrate a silicon dioxide layer. The silicon dioxide layer and the thin gate oxidation layer on drain/source are etched vertically by a reactive ion etching until the photo-resist and the silicon surface of drain/source are exposed. A plurality of spacers are thus formed on the side walls of the photo-resist/polysilicon gate. Upon stripping the photo-resist, the grooved gate structure is formed on the semiconductor device.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: July 7, 1998
    Assignee: National Science Council
    Inventors: Ching-Fa Yeh, Jwinn Lein Su
  • Patent number: 5661051
    Abstract: A polysilicon transistor having a buried-gate structure is fabricated by a method involving a liquid phase deposition which is used for depositing selectively a silicon dioxide layer on a polysilicon layer, but not on a photoresist layer. The silicon dioxide liquid phase deposition is brought about by using an aqueous hydrofluorosilicic acid (H.sub.2 SiF.sub.6) solution supersaturated with silicon dioxide. Upon completion of the stripping of the photoresist layer, the selectively-deposited silicon dioxide layer is used as a mask to perform the source/drain ion implant.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: August 26, 1997
    Assignee: National Science Council
    Inventors: Ching-Fa Yeh, Jyh-Nan Jeng