Patents by Inventor Choon-Beng Sia

Choon-Beng Sia 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: 7721414
    Abstract: A method of manufacturing a 3-D spiral stacked inductor is provided having a substrate with a plurality of turns in a plurality of levels wherein the number of levels increases from an inner turn to the outer turn of the inductor. First and second connecting portions are respectively connected to an inner turn and an outermost turn, and a dielectric material contains the first and second connecting portions and the plurality of turns over the substrate.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: May 25, 2010
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Choon-Beng Sia, Kiat Seng Yeo, Shao-fu Sanford Chu, Cheng Yeow Ng, Kok Wai Chew, Wang Ling Goh
  • Patent number: 7250669
    Abstract: A first method of reducing semiconductor device substrate effects comprising the following steps. O+or O2+are selectively implanted into a silicon substrate to form a silicon-damaged silicon oxide region. One or more devices are formed over the silicon substrate proximate the silicon-damaged silicon oxide region within at least one upper dielectric layer. A passivation layer is formed over the at least one upper dielectric layer. The passivation layer and the at least one upper dielectric layer are patterned to form a trench exposing a portion of the silicon substrate over the silicon-damaged silicon oxide region. The silicon-damaged silicon oxide region is selectively etched to form a channel continuous and contiguous with the trench whereby the channel reduces the substrate effects of the one or more semiconductor devices.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: July 31, 2007
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Lap Chan, Sanford Chu, Chit Hwei Ng, Purakh Verma, Jia Zhen Zheng, Johnny Chew, Choon Beng Sia
  • Patent number: 6869884
    Abstract: A first method of reducing semiconductor device substrate effects comprising the following steps. O+ or O2+ are selectively implanted into a silicon substrate to form a silicon-damaged silicon oxide region. One or more devices are formed over the silicon substrate proximate the silicon-damaged silicon oxide region within at least one upper dielectric layer. A passivation layer is formed over the at least one upper dielectric layer. The passivation layer and the at least one upper dielectric layer are patterned to form a trench exposing a portion of the silicon substrate over the silicon-damaged silicon oxide region. The silicon-damaged silicon oxide region is selectively etched to form a channel continuous and contiguous with the trench whereby the channel reduces the substrate effects of the one or more semiconductor devices.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: March 22, 2005
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Lap Chan, Sanford Chu, Chit Hwei Ng, Purakh Verma, Jia Zhen Zheng, Johnny Chew, Choon Beng Sia
  • Publication number: 20050057335
    Abstract: A method of manufacturing a 3-D spiral stacked inductor is provided having a substrate with a plurality of turns in a plurality of levels wherein the number of levels increases from an inner turn to the outer turn of the inductor. First and second connecting portions are respectively connected to an inner turn and an outermost turn, and a dielectric material contains the first and second connecting portions and the plurality of turns over the substrate.
    Type: Application
    Filed: October 8, 2004
    Publication date: March 17, 2005
    Applicant: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Choon-Beng Sia, Kiat Yeo, Shao-fu Chu, Cheng Ng, Kok Chew, Wang Goh
  • Patent number: 6841847
    Abstract: A 3-D spiral stacked inductor is provided having a substrate with a plurality of turns in a plurality of levels wherein the number of levels increases from an inner turn to the outer turn of the inductor. First and second connecting portions are respectively connected to an inner turn and an outermost turn, and dielectric material contains the first and second connecting portions and the plurality of turns over the substrate.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: January 11, 2005
    Assignee: Chartered Semiconductor Manufacturing, Ltd.
    Inventors: Choon-Beng Sia, Kiat Seng Yeo, Shao-fu Sanford Chu, Cheng Yeow Ng, Kok Wai Chew, Wang Ling Goh
  • Publication number: 20040041234
    Abstract: A parallel spiral stacked inductor and manufacturing method therefore is provided. A substrate has a plurality of turns in a plurality of levels, the plurality of turns having a center proximate and a center distal ends. A first plurality of vias connecting the center proximate ends of the plurality of turns and a second plurality of vias connecting the center distal ends of the plurality of turns. A first connecting portion connects to the center proximate ends of the plurality of turns and a second connecting portion connecting to the center distal end of the plurality of turns. A dielectric material contains the inductor.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 4, 2004
    Inventors: Choon-Beng Sia, Kiat Seng Yeo, Shao-fu Sanford Chu, Cheng Yeow Ng, Kok Wai Chew, Wang Ling Goh
  • Publication number: 20040038542
    Abstract: A first method of reducing semiconductor device substrate effects comprising the following steps. O+ or O2+ are selectively implanted into a silicon substrate to form a silicon-damaged silicon oxide region. One or more devices are formed over the silicon substrate proximate the silicon-damaged silicon oxide region within at least one upper dielectric layer. A passivation layer is formed over the at least one upper dielectric layer. The passivation layer and the at least one upper dielectric layer are patterned to form a trench exposing a portion of the silicon substrate over the silicon-damaged silicon oxide region. The silicon-damaged silicon oxide region is selectively etched to form a channel continuous and contiguous with the trench whereby the channel reduces the substrate effects of the one or more semiconductor devices.
    Type: Application
    Filed: August 22, 2002
    Publication date: February 26, 2004
    Applicant: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Lap Chan, Sanford Chu, Chit Hwei Ng, Purakh Verma, Jia Zhen Zheng, Johnny Chew, Choon Beng Sia
  • Patent number: 6650220
    Abstract: A parallel spiral stacked inductor and manufacturing method therefore is provided. A substrate has a plurality of turns in a plurality of levels, the plurality of turns having a center proximate and a center distal ends. A first plurality of vias connecting the center proximate ends of the plurality of turns and a second plurality of vias connecting the center distal ends of the plurality of turns. A first connecting portion connects to the center proximate ends of the plurality of turns and a second connecting portion connecting to the center distal end of the plurality of turns. A dielectric material contains the inductor.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: November 18, 2003
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Choon-Beng Sia, Kiat Seng Yeo, Toe Naing Swe, Cheng Yeow Ng, Alex See
  • Publication number: 20030197586
    Abstract: A parallel spiral stacked inductor and manufacturing method therefore is provided. A substrate has a plurality of turns in a plurality of levels, the plurality of turns having a center proximate and a center distal ends. A first plurality of vias connecting the center proximate ends of the plurality of turns and a second plurality of vias connecting the center distal ends of the plurality of turns. A first connecting portion connects to the center proximate ends of the plurality of turns and a second connecting portion connecting to the center distal end of the plurality of turns. A dielectric material contains the inductor.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 23, 2003
    Inventors: Choon-Beng Sia, Kiat Seng Yeo, Toe Naing Swe, Cheng Yeow Ng, Alex See