Patents by Inventor Yuan-Li Tsai

Yuan-Li Tsai 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: 20190076431
    Abstract: Methods of treating cancer, tumor angiogenesis, viral infection and fungal entry are provided. These methods include administering to a subject in need thereof an effective amount of a pharmaceutical composition that includes a compound that inhibits pro-to-oncogene tyrosine kinase protein SRC (c-SRC). The inhibition of SRC blocks cell surface glucose-regulated protein GRP78 and/or other endoplasmic reticulum ER luminal proteins dependent on SRC from going to the cell surface.
    Type: Application
    Filed: March 16, 2017
    Publication date: March 14, 2019
    Inventors: Amy S. Lee, Yuan-li Tsai
  • Patent number: 6797983
    Abstract: A method is provided to fabricate a LCOS back plane structure. The present invention utilized a HV device such as HV CMOS transistor (high voltage complementary metal oxide semiconductor transistor) and a HV capacitor layer are applied to the substrate. Furthermore, the HV capacitor layer has a higher dielectric layer and coupling ratio to sustain the higher operating voltage, such that the operating capacitance can be raised. Moreover, the HV CMOS transistor is combined with a mirror layer which has a higher reflective property, such that the LCOS back-plate structure has the better contrast and chrominance output in per area unit, when the operating voltage range is increased.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: September 28, 2004
    Assignee: United Microelectronics Corp.
    Inventors: Ralph Chen, Marcus Yang, Yuan-Li Tsai, Ching-Chun Huang, Sheng-Hsiung Yang
  • Patent number: 6680258
    Abstract: An opening through an insulating layer between a first layer and a second layer of a semiconductor device is formed where the second layer is a polysilicon or amorphous silicon hard mask layer. The polysilicon or amorphous silicon hard mask layer is etched to form at least one opening through the polysilicon or amorphous silicon hard mask layer using a patterning layer as a mask having at least one opening. The insulating layer is etched to form the opening through the insulating layer using the etched polysilicon or amorphous silicon hard mask layer as a mask. The etched polysilicon or amorphous silicon hard mask layer is nitridized prior to subsequent processing.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: January 20, 2004
    Assignee: ProMOS Technologies, Inc.
    Inventors: Yuan-Li Tsai, Yu-Piao Wang
  • Patent number: 6638841
    Abstract: A method for reducing a gate length bias is disclosed. The method utilizes an additional blanket ion implantation process to adjust the etching property of the undoped conductive layer. According to the present invention, a polysilicon layer is used to form NMOS and PMOS gate electrodes so that the gate length bias between the NMOS gate electrodes and the PMOS gate electrodes can be effectively reduced.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: October 28, 2003
    Assignee: United Microelectronics Corp.
    Inventors: Kai-Jen Ko, Yuan-Li Tsai, Ming-Hui Wu, Steven Huang, Ching-Chun Hwang
  • Patent number: 6624079
    Abstract: The method for forming high voltage device combined with a mixed mode process use an un-doped polysilicon layer instead of the conventional polysilicon layer. In the high resistance area, the ion implant is not used until the source region and the drain region are formed. A resistor is formed by etching oxide-nitride-oxide layer and performing ion implant process by using BF2 radical to the un-doped polysilicon layer to control the resistance. Then multitudes of contact are formed, wherein the high dosage of BF2 implant would reduce resistance between contacts and resistor.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: September 23, 2003
    Assignee: United Microelectronics Corp.
    Inventors: Yuan-Li Tsai, Marcus Yang, Ralph Chen, Heng-Chun Kao, Ching-Chun Hwang
  • Publication number: 20030143768
    Abstract: A method is provided to fabricate a LCOS back plane structure. The present invention utilized a HV device such as HV CMOS transistor (high voltage complementary metal oxide semiconductor transistor) and a HV capacitor layer are applied to the substrate. Furthermore, the HV capacitor layer has a higher dielectric layer and coupling ratio to sustain the higher operating voltage, such that the operating capacitance can be raised. Moreover, the HV CMOS transistor is combined with a mirror layer which has a higher reflective property, such that the LCOS back-plate structure has the better contrast and chrominance output in per area unit, when the operating voltage range is increased.
    Type: Application
    Filed: January 30, 2002
    Publication date: July 31, 2003
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Ralph Chen, Marcus Yang, Yuan-Li Tsai, Ching-Chun Huang, Sheng-Hsiung Yang
  • Publication number: 20030082895
    Abstract: A method for reducing a gate length bias is disclosed. The method utilizes an additional blanket ion implantation process to adjust the etching property of the undoped conductive layer such as a polysilicon layer used to form NMOS and PMOS gate electrodes so that the gate length bias between the NMOS gate electrodes and the PMOS gate electrodes can be effectively reduced.
    Type: Application
    Filed: April 8, 2002
    Publication date: May 1, 2003
    Inventors: Kai-Jen Ko, Yuan-Li Tsai, Ming-Hui Wu, Steven Huang, Ching-Chun Huang
  • Publication number: 20030036276
    Abstract: A method for forming a high resistance resistor with an integrated high voltage device process is disclosed. First and second field oxide areas are formed on a substrate and an undoped first polysilicon layer is deposited. A first photoresist layer having a resistor pattern is formed on the first field oxide area and a first ion implant process is performed with the first photoresist layer as a mask which is then removed and an oxide nitride oxide (ONO) layer is formed on the first polysilicon layer. The ONO layer and the first polysilicon layer are etched to form a resistor on the first field oxide area and a first electrode of a capacitor on the second field oxide area. A second polysilicon layer is formed on the capacitor ONO layer as a second electrode of the capacitor. A second photoresist layer is formed on the substrate, the resistor and the capacitor and has an opening pattern to expose the resistor. The ONO layer is removed from the resistor.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 20, 2003
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Yuan-Li Tsai, Marcus Yang, Ralph Chen, Heng-Chun Kao, Ching-Chun Hwang
  • Patent number: 6440818
    Abstract: A semiconductor wafer includes a silicon substrate, an active area positioned on the silicon substrate, and a field oxide layer positioned on the surface of the silicon substrate surrounding the active area. The present invention forms a doped area in the silicon substrate and within the active area and then deposits a dielectric layer on the surface of the semiconductor wafer. A dry etching process is performed to remove the dielectric layer. The top power of the dry etching process ranges between three hundred and five hundred watts to prevent damage to the silicon substrate near the field oxide layer and within the active area by the dry etching process, and to reduce the leakage current of the doped area. Additionally, the present invention also uses a wet etching process to remove the dielectric layer, which prevents an anisotropic physical impact on the silicon substrate near the field oxide layer to reduce the leakage current of the doped area.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: August 27, 2002
    Assignee: United Microelectronics Corp.
    Inventors: Yuan-Li Tsai, Kuo-Hua Ho, Kai-Jen Ko, Cheng-Hui Chung