Patents by Inventor Kin-Leong Pey

Kin-Leong Pey 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: 10381360
    Abstract: A method of forming a uniform WL over the MCEL region and resulting device are provided. Embodiments include providing a substrate having a MCEL region, a HV region and a logic region, separated by an isolation region; forming a plurality of CG stacks over the MCEL region, and a plurality of CG dummy stacks over the HV region and the logic region, respectively; forming first and second overlying polysilicon layers with a spacer therebetween, an EG and a WL on the MCEL region formed; planarizing the second polysilicon layer down to upper surface of the plurality of CG stacks and the plurality of CG dummy stacks; and removing portions of the second polysilicon layer in-between the plurality of CG stacks and around the plurality of CG dummy stacks.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: August 13, 2019
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Laiqiang Luo, Sen Mei, Fangxin Deng, Zhiqiang Teo, Fan Zhang, Pinghui Li, Haiqing Zhou, Xingyu Chen, Kin Leong Pey
  • Publication number: 20160233157
    Abstract: A method and structure for slots in wide lines to reduce stress. An example embodiment method and structure for is an interconnect structure comprising: interconnect comprising a wide line. The wide line has a first slot. The first slot is spaced a first distance from a via plug so that the first slot relieves stress on the wide line and the via plug. The via plug can contact the wide line from above or below. Another example embodiment is a dual damascene interconnect structure comprising: an dual damascene shaped interconnect comprising a via plug, a first slot and a wide line. The wide line has the first slot. The first slot is spaced a first distance from the via plug so that the first slot relieves stress on the wide line and the via plug.
    Type: Application
    Filed: April 18, 2016
    Publication date: August 11, 2016
    Inventors: Yeow Kheng LIM, Alex SEE, Tae Jong LEE, David VIGAR, Liang Choo HSIA, Kin Leong PEY
  • Patent number: 9318378
    Abstract: A method and structure for slots in wide lines to reduce stress. An example embodiment method and structure for is an interconnect structure comprising: interconnect comprising a wide line. The wide line has a first slot. The first slot is spaced a first distance from a via plug so that the first slot relieves stress on the wide line and the via plug. The via plug can contact the wide line from above or below. Another example embodiment is a dual damascene interconnect structure comprising: an dual damascene shaped interconnect comprising a via plug, a first slot and a wide line. The wide line has the first slot. The first slot is spaced a first distance from the via plug so that the first slot relieves stress on the wide line and the via plug.
    Type: Grant
    Filed: August 21, 2004
    Date of Patent: April 19, 2016
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Yeow Kheng Lim, Alex See, Tae Jong Lee, David Vigar, Liang Choo Hsia, Kin Leong Pey
  • Patent number: 9024286
    Abstract: Generally, the subject matter disclosed herein relates to the fabrication of an RRAM cell using CMOS compatible processes. A resistance random access memory device is disclosed which includes a semiconducting substrate, a top electrode, at least one metal silicide bottom electrode formed at least partially in the substrate, wherein at least a portion of the at least one bottom electrode is positioned below the top electrode, and at least one insulating layer positioned between the top electrode and at least a portion of the at least one bottom electrode.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: May 5, 2015
    Assignees: GLOBALFOUNDRIES Singapore PTE Ltd, Nanyang Technological University
    Inventors: Wenhu Liu, Kin-Leong Pey, Nagarajan Raghavan, Chee Mang Ng
  • Patent number: 8922003
    Abstract: A method for forming a device is disclosed. A substrate with a contact region is provided. Vacancy defects are formed in the substrate. The vacancy defects have a peak concentration at a depth DV. A metal based contact is formed in the contact region. The metal based contact has a depth DC which is equal to about DV. The vacancy defects lower the resistance of the metal based contact with the substrate.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: December 30, 2014
    Assignees: GLOBALFOUNDRIES Singapore Pte. Ltd., Nanyang Technological University
    Inventors: Dexter Xueming Tan, Yoke King Chin, Kin Leong Pey
  • Publication number: 20140077148
    Abstract: Generally, the subject matter disclosed herein relates to the fabrication of an RRAM cell using CMOS compatible processes. A resistance random access memory device is disclosed which includes a semiconducting substrate, a top electrode, at least one metal silicide bottom electrode formed at least partially in the substrate, wherein at least a portion of the at least one bottom electrode is positioned below the top electrode, and at least one insulating layer positioned between the top electrode and at least a portion of the at least one bottom electrode.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicants: Nanyang Technological University, Globalfoundries Singapore PTE Ltd
    Inventors: Wenhu Liu, Kin-Leong Pey, Nagarajan Raghavan, Chee Mang Ng
  • Publication number: 20130187264
    Abstract: A method for forming a device is disclosed. A substrate with a contact region is provided. Vacancy defects are formed in the substrate. The vacancy defects have a peak concentration at a depth DV. A metal based contact is formed in the contact region. The metal based contact has a depth DC which is equal to about DV. The vacancy defects lower the resistance of the metal based contact with the substrate.
    Type: Application
    Filed: January 19, 2012
    Publication date: July 25, 2013
    Applicants: NANYANG TECHNOLOGICAL UNIVERSITY, GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Dexter Xueming TAN, Yoke King CHIN, Kin Leong PEY
  • Patent number: 8338280
    Abstract: Embodiments relate to a method for fabricating nano-wires in nano-devices, and more particularly to nano-device fabrication using end-of-range (EOR) defects. In one embodiment, a substrate with a surface crystalline layer over the substrate is provided and EOR defects are created in the surface crystalline layer. One or more fins with EOR defects embedded within is formed and oxidized to form one or more fully oxidized nano-wires with nano-crystals within the core of the nano-wire.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: December 25, 2012
    Assignees: GLOBALFOUNDRIES Singapore Pte. Ltd., Nanyang Technological University
    Inventors: Dexter Tan, Kin Leong Pey, Sai Hooi Yeong, Yoke King Chin, Kuang Kian Ong, Chee Mang Ng
  • Publication number: 20120241710
    Abstract: Generally, the subject matter disclosed herein relates to the fabrication of an RRAM cell using CMOS compatible processes. A resistance random access memory device is disclosed which includes a semiconducting substrate, a top electrode, at least one metal silicide bottom electrode formed at least partially in the substrate, wherein at least a portion of the at least one bottom electrode is positioned below the top electrode, and at least one insulating layer positioned between the top electrode and at least a portion of the at least one bottom electrode.
    Type: Application
    Filed: March 21, 2011
    Publication date: September 27, 2012
    Applicants: NANYANG TECHNOLOGICAL UNIVERSITY, GLOBALFOUNDRIES SINGAPORE PTE LTD
    Inventors: Wenhu Liu, Kin-Leong Pey, Nagarajan Raghavan, Chee Mang Ng
  • Patent number: 8101487
    Abstract: A method for fabricating a semiconductor device is presented. The method includes providing a substrate and forming a gate stack over the substrate. A first laser processing to form vacancy rich regions within the substrate on opposing sides of the gate stack is performed. The vacancy rich regions have a first depth from a surface of the substrate. A first implant causing end of range defect regions to be formed on opposing sides of the gate stack at a second depth from the surface of the substrate is also carried out, wherein the first depth is proximate to the second depth.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: January 24, 2012
    Assignees: Nanyang Technological University, National University of Singapore, GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Dexter Xueming Tan, Benjamin Colombeau, Clark Kuang Kian Ong, Sai Hooi Yeong, Chee Mang Ng, Kin Leong Pey
  • Publication number: 20120009749
    Abstract: Embodiments relate to a method for fabricating nano-wires in nano-devices, and more particularly to nano-device fabrication using end-of-range (EOR) defects. In one embodiment, a substrate with a surface crystalline layer over the substrate is provided and EOR defects are created in the surface crystalline layer. One or more fins with EOR defects embedded within is formed and oxidized to form one or more fully oxidized nano-wires with nano-crystals within the core of the nano-wire.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 12, 2012
    Applicants: NANYANG TECHNOLOGICAL UNIVERSITY, GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Dexter TAN, Kin Leong PEY, Sai Hooi YEONG, Yoke King CHIN, Kuang Kian ONG, Chee Mang NG
  • Patent number: 7892905
    Abstract: A process for forming a strained channel region for a MOSFET device via formation of adjacent silicon-germanium source/drain regions, has been developed. The process features either blanket deposition of a silicon-germanium layer, or selective growth of a silicon-germanium layer on exposed portions of a source/drain extension region. A laser anneal procedure results in formation of a silicon-germanium source/drain region via consumption of a bottom portion of the silicon-germanium layer and a top portion of the underlying source/drain region. Optimization of the formation of the silicon-germanium source/drain region via laser annealing can be achieved via a pre-amorphization implantation (PAI) procedure applied to exposed portions of the source/drain region prior to deposition of the silicon-germanium layer. Un-reacted top portions of the silicon-germanium layer are selectively removed after the laser anneal procedure.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: February 22, 2011
    Assignee: Globalfoundries Singapore Pte. Ltd.
    Inventors: Kuang Kian Ong, Kin Leong Pey, King Jien Chui, Ganesh Samudra, Yee Chia Yeo, Yung Fu Chong
  • Patent number: 7888224
    Abstract: A method for forming a shallow junction region in a crystalline semiconductor substrate and method for fabricating a semiconductor device having the shallow junction region includes a defect engineering step in which first ions are introduced into a first region of the substrate and vacancies are generated in the first region. During the generation of substrate vacancies, the first region remains substantially crystalline. Interstitial species are generated in a second region and second ions are introduced into the second region to capture the interstitial species. Laser annealing is used to activate dopant species in the first region and repair implantation damage in the second region. The defect engineering process creates a vacancy-rich surface region in which source and drain extension regions having high dopant activation and low sheet resistance are created in an MOS device.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: February 15, 2011
    Assignees: Nanyang Technological University, Chartered Semiconductor Manufacturing Ltd., National University Of Singapore
    Inventors: Kuang Kian Ong, Sai Hooi Yeong, Kin Leong Pey, Lap Chan, Yung Fu Chong
  • Publication number: 20100124809
    Abstract: A method for forming a shallow junction region in a crystalline semiconductor substrate and method for fabricating a semiconductor device having the shallow junction region includes a defect engineering step in which first ions are introduced into a first region of the substrate and vacancies are generated in the first region. During the generation of substrate vacancies, the first region remains substantially crystalline. Interstitial species are generated in a second region and second ions are introduced into the second region to capture the interstitial species. Laser annealing is used to activate dopant species in the first region and repair implantation damage in the second region. The defect engineering process creates a vacancy-rich surface region in which source and drain extension regions having high dopant activation and low sheet resistance are created in an MOS device.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 20, 2010
    Inventors: Kuang Kian Ong, Sai Hooi Yeong, Kin Leong Pey, Lap Chan, Yung Fu Chong
  • Publication number: 20090286373
    Abstract: A method for fabricating a semiconductor device is presented. The method includes providing a substrate and forming a gate stack over the substrate. A first laser processing to form vacancy rich regions within the substrate on opposing sides of the gate stack is performed. The vacancy rich regions have a first depth from a surface of the substrate. A first implant causing end of range defect regions to be formed on opposing sides of the gate stack at a second depth from the surface of the substrate is also carried out, wherein the first depth is proximate to the second depth.
    Type: Application
    Filed: May 15, 2009
    Publication date: November 19, 2009
    Applicants: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD., NANYANG TECHNOLOGICAL UNIVERSITY, NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Dexter Xueming TAN, Benjamin COLOMBEAU, Clark Kuang Kian ONG, Sai Hooi YEONG, Chee Mang NG, Kin Leong PEY
  • Patent number: 7253097
    Abstract: An integrated circuit system includes providing a semiconductor substrate having a semiconductor device provided thereon. A first dielectric layer is formed over the semiconductor substrate, and a first conductor core is formed in the first dielectric layer. A stop layer is formed over the first conductor core. A second dielectric layer is formed over the stop layer. A channel and a via are formed in the second dielectric layer. The channel and the via in the second dielectric layer are wet cleaned. A barrier metal layer is deposited to line the channel and the via in the second dielectric layer. The barrier metal layer is selectively etched from the bottom of the via in the dielectric layer, and a second conductor core is formed over the barrier metal layer to fill the second channel and the via to connect the second conductor core to the first conductor core.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: August 7, 2007
    Assignee: Chartered Semiconductor Manufacturing, Ltd.
    Inventors: Yeow Kheng Lim, Chim Seng Seet, Tae Jong Lee, Liang-Choo Hsia, Kin Leong Pey
  • Publication number: 20070001303
    Abstract: An integrated circuit system includes providing a semiconductor substrate having a semiconductor device provided thereon. A first dielectric layer is formed over the semiconductor substrate, and a first conductor core is formed in the first dielectric layer. A stop layer is formed over the first conductor core. A second dielectric layer is formed over the stop layer. A channel and a via are formed in the second dielectric layer. The channel and the via in the second dielectric layer are wet cleaned. A barrier metal layer is deposited to line the channel and the via in the second dielectric layer. The barrier metal layer is selectively etched from the bottom of the via in the dielectric layer, and a second conductor core is formed over the barrier metal layer to fill the second channel and the via to connect the second conductor core to the first conductor core.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 4, 2007
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.
    Inventors: Yeow Kheng Lim, Chim Seng Seet, Tae Jong Lee, Liang-Choo Hsia, Kin Leong Pey
  • Patent number: 7030451
    Abstract: A method and apparatus for performing nickel salicidation is disclosed. The nickel salicide process typically includes: forming a processed substrate including partially fabricated integrated circuit components and a silicon substrate; incorporating nitrogen into the processed substrate; depositing nickel onto the processed substrate; annealing the processed substrate so as to form nickel mono-silicide; removing the unreacted nickel; and performing a series procedures to complete integrated circuit fabrication. This nickel salicide process increases the annealing temperature range for which a continuous, thin nickel mono-silicide layer can be formed on silicon by salicidation. It also delays the onset of agglomeration of nickel mono-silicide thin-films to a higher annealing temperature. Moreover, this nickel salicide process delays the transformation from nickel mono-silicide to higher resistivity nickel di-silicide, to higher annealing temperature.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: April 18, 2006
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Pooi See Lee, Kin Leong Pey, Alex See, Lap Chan
  • Patent number: 7005716
    Abstract: Methods for forming dual-metal gate CMOS transistors are described. An NMOS and a PMOS active area of a semiconductor substrate are separated by isolation regions. A metal layer is deposited over a gate dielectric layer in each active area. Silicon ions are implanted into the metal layer in one active area to form an implanted metal layer which is silicided to form a metal silicide layer. Thereafter, the metal layer and the metal silicide layer are patterned to form a metal gate in one active area and a metal silicide gate in the other active area wherein the active area having the gate with the higher work function is the PMOS active area. Alternatively, both gates may be metal silicide gates wherein the silicon concentrations of the two gates differ. Alternatively, a dummy gate may be formed in each of the active areas and covered with a dielectric layer. The dielectric layer is planarized thereby exposing the dummy gates. The dummy gates are removed leaving gate openings to the semiconductor substrate.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: February 28, 2006
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Wenhe Lin, Mei-Sheng Zhou, Kin Leong Pey, Simon Chooi
  • Patent number: 6891233
    Abstract: Methods for forming dual-metal gate CMOS transistors are described. An NMOS and a PMOS active area of a semiconductor substrate are separated by isolation regions. A metal layer is deposited over a gate dielectric layer in each active area. Oxygen ions are implanted into the metal layer in one active area to form an implanted metal layer which is oxidized to form a metal oxide layer. Thereafter, the metal layer and the metal oxide layer are patterned to form a metal gate in one active area and a metal oxide gate in the other active area wherein the active area having the gate with the higher work function is the PMOS active area. Alternatively, both gates may be metal oxide gates wherein the oxide concentrations of the two gates differ. Alternatively, a dummy gate may be formed in each of the active areas and covered with a dielectric layer. The dielectric layer is planarized thereby exposing the dummy gates. The dummy gates are removed leaving gate openings to the semiconductor substrate.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: May 10, 2005
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Wenhe Lin, Mei-Sheng Zhou, Kin Leong Pey, Simon Chooi