Patents by Inventor Kok Wai Chew

Kok Wai Chew 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: 8643461
    Abstract: A device having a substrate and a dielectric layer disposed over the substrate is disclosed. The device includes a transformer layout disposed in the dielectric layer. The transformer layout includes an integrated transformer having primary and secondary coil elements. The first and second coil elements are configured to result in noise-self cancellation effect.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: February 4, 2014
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Chee Chong Lim, Johnny Kok Wai Chew, Suh Fei Lim, Wei Gao
  • Patent number: 8536016
    Abstract: A method of manufacture of an integrated circuit system includes: providing a substrate including front-end-of-line circuitry; forming a first group of metal layers including a first finger and a second finger over the substrate utilizing a first design rule, the first group of metal layers being formed without a finger via; forming a second group of metal layers including a first finger, a second finger, and a finger via over the first group of metal layers utilizing a second design rule that is larger than the first design rule; and interconnecting the first group of metal layers, including interconnecting a first cluster adjacent to a second cluster, to form a capacitor.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: September 17, 2013
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Shao-fu Sanford Chu, Shaoqiang Zhang, Johnny Kok Wai Chew
  • Publication number: 20120274434
    Abstract: A device having a substrate and a dielectric layer disposed over the substrate is disclosed. The device includes a transformer layout disposed in the dielectric layer. The transformer layout includes an integrated transformer having primary and secondary coil elements. The first and second coil elements are configured to result in noise-self cancellation effect.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 1, 2012
    Applicant: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Chee Chong LIM, Johnny Kok Wai CHEW, Suh Fei LIM, Wei GAO
  • Patent number: 8242872
    Abstract: Embodiments of the invention provide a transformer comprising: a first coil element having a transverse axis along a transverse direction, the first coil element having p turns where p is greater than or equal to 1; and a second coil element having a transverse axis generally parallel to the transverse axis of the first coil element, the second coil element having n turns, where n is greater than or equal to 5p; wherein the first and second coil elements are arranged to provide electromagnetic coupling between the coil elements along a portion of a length of the second coil element in both a transverse direction parallel to the transverse axes and a lateral direction, wherein the lateral direction is a direction normal to the transverse axes.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: August 14, 2012
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Chee Chong Lim, Kok Wai Chew, Kiat Seng Yeo, Suh Fei Lim, Manh Anh Do, Lap Chan
  • Patent number: 8237531
    Abstract: An inductor circuit with high quality (Q) factor includes a primary inductor and a compensation sub-circuit. The compensation sub-circuit is electrically isolated from the primary inductor. The compensation sub-circuit is magnetically coupled with the primary inductor to compensate the loss in the primary inductor.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: August 7, 2012
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Ping Qiu, Chirn Chye Boon, Johnny Kok Wai Chew, Kiat Seng Yeo, Manh Anh Do, Lap Chan, Suh Fei Lim
  • Publication number: 20120007214
    Abstract: A method of manufacture of an integrated circuit system includes: providing a substrate including front-end-of-line circuitry; forming a first group of metal layers including a first finger and a second finger over the substrate utilizing a first design rule, the first group of metal layers being formed without a finger via; forming a second group of metal layers including a first finger, a second finger, and a finger via over the first group of metal layers utilizing a second design rule that is larger than the first design rule; and interconnecting the first group of metal layers, including interconnecting a first cluster adjacent to a second cluster, to form a capacitor.
    Type: Application
    Filed: September 19, 2011
    Publication date: January 12, 2012
    Applicant: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Shao-fu Sanford Chu, Shaoqiang Zhang, Johnny Kok Wai Chew
  • Patent number: 8021954
    Abstract: A method of manufacture of an integrated circuit system includes: providing a substrate including front-end-of-line circuitry; forming a first group of metal layers including a first finger and a second finger over the substrate utilizing a first design rule, the first group of metal layers being formed without a finger via; forming a second group of metal layers including a first finger, a second finger, and a finger via over the first group of metal layers utilizing a second design rule that is larger than the first design rule; and interconnecting the first group of metal layers with the second group of metal layers to form a capacitor.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: September 20, 2011
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Shao-fu Sanford Chu, Shaoqing Zhang, Johnny Kok Wai Chew, Chit Hwei Ng
  • Patent number: 8003529
    Abstract: A method of forming an integrated circuit is disclosed. The method includes providing a substrate and forming on the substrate a shield structure comprising a shield member and a ground strap. The shield member comprises a non-metallic portion, and the ground strap comprises a metallic portion.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: August 23, 2011
    Assignee: Globalfoundries Singapore Pte. Ltd.
    Inventors: Suh Fei Lim, Kok Wai Chew, Sanford Shao-Fu Chu, Michael Chye Huat Cheng
  • Publication number: 20100295153
    Abstract: A method of manufacture of an integrated circuit system includes: providing a substrate including front-end-of-line circuitry; forming a first group of metal layers including a first finger and a second finger over the substrate utilizing a first design rule, the first group of metal layers being formed without a finger via; forming a second group of metal layers including a first finger, a second finger, and a finger via over the first group of metal layers utilizing a second design rule that is larger than the first design rule; and interconnecting the first group of metal layers with the second group of metal layers to form a capacitor.
    Type: Application
    Filed: May 22, 2009
    Publication date: November 25, 2010
    Applicant: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Shao-fu Sanford Chu, Shaoqing Zhang, Johnny Kok Wai Chew, Chit Hwei Ng
  • 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
  • Publication number: 20100120244
    Abstract: A method of forming an integrated circuit is disclosed. The method includes providing a substrate and forming on the substrate a shield structure comprising a shield member and a ground strap. The shield member comprises a non-metallic portion, and the ground strap comprises a metallic portion.
    Type: Application
    Filed: January 25, 2010
    Publication date: May 13, 2010
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.
    Inventors: Suh Fei LIM, Kok Wai CHEW, Sanford Shao-Fu CHU, Michael Chye Huat CHENG
  • Patent number: 7652355
    Abstract: Embodiments of the invention provide an integrated circuit structure comprising: a substrate; a shield structure comprising a shield member and a ground strap formed on the substrate, wherein the shield member comprises a non-metallic portion, and the ground strap comprises a metallic portion.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: January 26, 2010
    Assignee: Chartered Semiconductor Manufacturing, Ltd.
    Inventors: Suh Fei Lim, Kok Wai Chew, Sanford Shao-Fu Chu, Michael Chye Huat Cheng
  • Patent number: 7570144
    Abstract: An integrated transformer structure includes a first coil element associated with a transverse axis, the first coil element having at least one turn. The first coil element includes a first portion provided on a first lateral level, and a second portion provided on a second lateral level. The first and second lateral levels being mutually spaced apart along said transverse axis. The first and second portions being displaced laterally from said axis by different respective distances. At least one crossover portion of the first coil element, in which the first coil element being configured to provide a conducting path through at least a portion of the first portion of the first coil element to the crossover portion, through the crossover portion and subsequently through at least a portion of the second portion of the first coil element, in which any change of flow direction along said path is less than 90° in a lateral direction.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: August 4, 2009
    Assignees: Chartered Semiconductor Manufacturing, Ltd., Nanyang Technological University
    Inventors: Chee Chong Lim, Kok Wai Chew, Kiat Seng Yeo, Suh Fei Lim, Manh Anh Do, Lap Chan
  • Publication number: 20090167466
    Abstract: An inductor circuit with high quality (Q) factor includes a primary inductor and a compensation sub-circuit. The compensation sub-circuit is electrically isolated from the primary inductor. The compensation sub-circuit is magnetically coupled with the primary inductor to compensate the loss in the primary inductor.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Applicants: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD., NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Ping QIU, Chirn Chye BOON, Johnny Kok Wai CHEW, Kiat Seng YEO, Manh Anh DO, Lap CHAN, Suh Fei LIM
  • Publication number: 20080284553
    Abstract: Embodiments of the invention provide a transformer comprising: a first coil element having a transverse axis along a transverse direction, the first coil element having p turns where p is greater than or equal to 1; and a second coil element having a transverse axis generally parallel to the transverse axis of the first coil element, the second coil element having n turns, where n is greater than or equal to 5 p; wherein the first and second coil elements are arranged to provide electromagnetic coupling between the coil elements along a portion of a length of the second coil element in both a transverse direction parallel to the transverse axes and a lateral direction, wherein the lateral direction is a direction normal to the transverse axes.
    Type: Application
    Filed: July 19, 2007
    Publication date: November 20, 2008
    Applicants: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD., NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Chee Chong LIM, Kok Wai CHEW, Kiat Seng YEO, Suh Fei LIM, Manh Anh DO, Lap CHAN
  • Publication number: 20080284552
    Abstract: An integrated transformer structure includes a first coil element associated with a transverse axis, the first coil element having at least one turn. The first coil element includes a first portion provided on a first lateral level, and a second portion provided on a second lateral level. The first and second lateral levels being mutually spaced apart along said transverse axis. The first and second portions being displaced laterally from said axis by different respective distances. At least one crossover portion of the first coil element, in which the first coil element being configured to provide a conducting path through at least a portion of the first portion of the first coil element to the crossover portion, through the crossover portion and subsequently through at least a portion of the second portion of the first coil element, in which any change of flow direction along said path is less than 90° in a lateral direction.
    Type: Application
    Filed: May 18, 2007
    Publication date: November 20, 2008
    Applicants: Chartered Semiconductor Manufacturing, Ltd., Nanyang Technological University
    Inventors: Chee Chong Lim, Kok Wai Chew, Kiat Seng Yeo, Suh Fei Lim, Manh Anh Do, Lap Chan
  • Publication number: 20070268093
    Abstract: Embodiments of the invention provide an integrated circuit structure comprising: a substrate; a shield structure comprising a shield member and a ground strap formed on the substrate, wherein the shield member comprises a non-metallic portion, and the ground strap comprises a metallic portion.
    Type: Application
    Filed: August 1, 2007
    Publication date: November 22, 2007
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.
    Inventors: Suh Fei LIM, Kok Wai CHEW, Sanford CHU, Michael CHENG
  • Patent number: 6998953
    Abstract: A method of fabricating an inductor using bonding techniques in the manufacture of integrated circuits is described. Bonding pads are provided over a semiconductor substrate. Input/output connections are made to at least two of the bonding pads. A plurality of wire bond loops are made between each two of the bonding pads wherein the plurality of wire bond loops forms the inductor.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: February 14, 2006
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Kiat Seng Yeo, Hai Peng Ian, Jiangud Ma, Manh Anh Do, Johnny Kok Wai Chew
  • 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
  • Patent number: 6709918
    Abstract: A method for making concurrently metal-insulator-metal (MIM) capacitors and a metal resistors in a Cu damascene back-end-of-line process is achieved. The method forms a Cu capacitor bottom metal plate using a dual-damascene process. A Si3N4 or SiC is deposited to form a capacitor dielectric layer on the Cu bottom plate. A metal layer having an upper etch-stop layer is deposited and patterned to form concurrently capacitor top plates and metal resistors. The patterning is terminated in the capacitor dielectric layer to prevent Cu particle contamination. An insulating layer is deposited and via holes are etched to the capacitor top plates and the metal resistors using the upper etch-stop layer to prevent overetching and damage. The method provides a MIM capacitor using only one additional photoresist mask while improving process yield.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: March 23, 2004
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Chit Hwei Ng, Jian Xun Li, Kok Wai Chew, Tjin Tjin Tjoa, Chaw Sing Ho, Shao Fu Sanford Chu