Patents by Inventor Chunshan Yin

Chunshan Yin 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: 8446779
    Abstract: A non-volatile memory device includes a floating gate with pyramidal-shaped silicon nanocrystals as electron storage elements. Electrons tunnel from the pyramidal-shaped silicon nanocrystals through a gate oxide layer to a control gate of the non-volatile memory device. The pyramidal shape of each silicon nanocrystal concentrates an electrical field at its peak to facilitate electron tunneling. This allows an erase process to occur at a lower tunneling voltage and shorter tunneling time than that of prior art devices.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: May 21, 2013
    Assignee: Globalfoundries Singapore Pte. Ltd.
    Inventors: Elgin Quek, Chunshan Yin, Shyue Seng Tan, Jae Gon Lee, Chung Foong Tan
  • Patent number: 8242559
    Abstract: A method of manufacture of an integrated circuit system includes: providing a second layer between a first layer and a third layer; forming an active device over the third layer; forming the third layer to form an island region underneath the active device; forming the second layer to form a floating second layer with an undercut beneath the island region; and depositing a fourth layer around the island region and the floating second layer.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: August 14, 2012
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Chunshan Yin, Lee Wee Teo, Chung Foong Tan, Jae Gon Lee
  • Publication number: 20120168895
    Abstract: A device includes a substrate with a device region on which a transistor is formed. The device region includes active edge regions and an active center region which have different oxidation growth rates. A growth rate modifier (GRM) comprising dopants which modifies oxidation growth rate is employed to produce a gate oxide layer which has a uniform thickness. The GRM may enhance or retard the oxidation growth, depending on the type of dopants used. Fluorine dopants enhance oxidation growth rate while nitrogen dopants retard oxidation growth rate.
    Type: Application
    Filed: December 29, 2010
    Publication date: July 5, 2012
    Applicant: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Chunshan YIN, Palanivel BALASUBRAMANIAM, Jae Gon LEE, Elgin QUEK
  • Publication number: 20120146160
    Abstract: A method of forming a semiconductor device is presented. The method includes providing a substrate. The method further includes forming a gate stack having a gate electrode on the substrate, which includes forming a metal gate electrode layer. A buffer gate electrode layer is formed on top of the metal gate electrode layer and a top gate electrode layer having a poly-silicon alloy is formed over the metal gate electrode layer.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 14, 2012
    Applicant: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Shyue Seng TAN, Chunshan YIN
  • Publication number: 20120119281
    Abstract: A method of manufacturing an integrated circuit system includes: providing a substrate having a channel region; forming a gate stack over a portion of the channel region with the gate stack having a floating gate for storing an electrical charge; forming a source recess in the substrate adjacent to the gate stack; and forming a source by layering a first bandgap material in the source recess.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 17, 2012
    Applicant: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Chung Foong Tan, Eng Huat Toh, Jae Gon Lee, Chunshan Yin, Lakshmi Bera
  • Publication number: 20120038009
    Abstract: A method (and semiconductor device) of fabricating a semiconductor device provides a field effect transistor (FET) with reduced gate contact resistance (and series resistance) for improved device performance. An impurity is implanted or deposited in the gate stack in an impurity region between the metal gate electrode and the gate contact layer. An anneal process is performed that converts the impurity region into a segregation layer which lowers the schottky barrier height (SBH) of the interface between the metal gate electrode (e.g., silicide) and gate contact layer (e.g., amorphous silicon). This results in lower gate contact resistance and effectively lowers the device's AC Reff.
    Type: Application
    Filed: August 11, 2010
    Publication date: February 16, 2012
    Inventors: Eng Huat Toh, Elgin Quek, Chunshan Yin, Chung Foong Tan, Jae Gon Lee
  • Publication number: 20120007180
    Abstract: FinFET devices are formed with body contact structures enabling the fabrication of such devices having different gate threshold voltages (Vt). A body contact layer is formed to contact the gate electrode (contact) enabling a forward body bias and a reduction in Vt. Two example methods of fabrication (and resulting structures) are provided. In one method, the gate electrode (silicon-based) and body contact layer (silicon) are connected by growing epitaxy which merges the two structures forming electrical contact. In another method, a via is formed that intersects with the gate electrode (suitable conductive material) and body contact layer and is filled with conductive material to electrically connect the two structures. As a result, various FinFETs with different Vt can be fabricated for different applications.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 12, 2012
    Applicant: Globalfoundries Singapore PTE, LTD.
    Inventors: Chunshan Yin, Kian Ming Tan, Jae Gon Lee
  • Publication number: 20120007185
    Abstract: A method (and semiconductor device) of fabricating a semiconductor device adjusts gate threshold (Vt) of a field effect transistor (FET) with raised source/drain (S/D) regions. A halo region is formed in a two-step process that includes implanting dopants using conventional implantation techniques and implanting dopants at a specific twist angle. The dopant concentration in the halo region near the active edge of the raised S/D regions is higher and extends deeper than the dopant concentration within the interior region of the raised S/D regions. As a result, Vt near the active edge region is adjusted and different from the Vt at the active center regions, thereby achieving same or similar Vt for a FET with different width.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 12, 2012
    Applicant: Globalfoundries Singapore PTE, LTD.
    Inventors: Chunshan Yin, Guangyu Huang, Elgin Quek, Jae Gon Lee, Kian Ming Tan
  • Publication number: 20110156121
    Abstract: A method for forming a device is presented. A substrate prepared with a feature having first and second adjacent surfaces is provided. A device layer is formed on the first and second adjacent surfaces of the feature. A first portion of the device layer over the first adjacent surface includes nano-crystals, whereas a second portion of the device layer over the second adjacent surface is devoid of nano-crystals.
    Type: Application
    Filed: December 31, 2009
    Publication date: June 30, 2011
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.
    Inventors: Lee Wee Teo, Chunshan Yin, Shyue Seng Tan, Chüng Foong Tan, Jae Gon Lee, Elgin Quek, Purakh Raj Verma
  • Publication number: 20110115009
    Abstract: A method for forming a semiconductor device is disclosed. The method includes providing a substrate prepared with a second gate structure. An inter-gate dielectric is formed on the substrate and over the second gate. A first gate is also formed. The first gate is adjacent to and separated from the second gate by the inter-gate dielectric. The substrate is patterned to form a split gate structure with the first and second adjacent gates. The split gate structure is provided with an e-field equalizer adjacent to the first gate. The e-field equalizer improves uniformity of e-field across the first gate during operation.
    Type: Application
    Filed: November 19, 2009
    Publication date: May 19, 2011
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.
    Inventors: Shyue Seng TAN, Lee Wee TEO, Chunshan YIN
  • Publication number: 20110044115
    Abstract: A non-volatile memory device includes a floating gate with pyramidal-shaped silicon nanocrystals as electron storage elements. Electrons tunnel from the pyramidal-shaped silicon nanocrystals through a gate oxide layer to a control gate of the non-volatile memory device. The pyramidal shape of each silicon nanocrystal concentrates an electrical field at its peak to facilitate electron tunneling. This allows an erase process to occur at a lower tunneling voltage and shorter tunneling time than that of prior art devices.
    Type: Application
    Filed: August 21, 2009
    Publication date: February 24, 2011
    Applicant: Chartered Semiconductor Manufacturing, Ltd.
    Inventors: Elgin Quek, Chunshan Yin, Shyue Seng Tan, Jae Gon Lee, Chung Foong Tan
  • Patent number: 7846800
    Abstract: A circuit having a circuit control terminal, a primary circuit and a protection circuit is provided. The primary circuit includes a primary control terminal and a primary gate oxide of a thickness T1. The primary control terminal is coupled to the circuit control terminal. The protection circuit having a protection control terminal is coupled to the primary circuit. The protection circuit includes a protection gate oxide of a second thickness T2 which is less than T1. The protection gate oxide reduces plasma induced damage in the primary circuit.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: December 7, 2010
    Assignee: Chartered Semiconductor Manufacturing, Ltd.
    Inventors: Chung Foong Tan, Jae Gon Lee, Lee Wee Teo, Elgin Quek, Chunshan Yin
  • Publication number: 20100304556
    Abstract: A method of manufacture of an integrated circuit system includes: providing a mesa over a substrate; forming a trench in the substrate adjacent the mesa; forming a second gate and a charge storage material along a trench sidewall; and forming a first gate from the mesa.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 2, 2010
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING LTD.
    Inventors: Chunshan Yin, Jae Gon Lee, Shyue Seng Tan, Elgin Kiok Boone Quek, Chung Foong Tan, Lee Wee Teo
  • Publication number: 20100258868
    Abstract: A method of manufacture of an integrated circuit system includes: providing a second layer between a first layer and a third layer; forming an active device over the third layer; forming the third layer to form an island region underneath the active device; forming the second layer to form a floating second layer with an undercut beneath the island region; and depositing a fourth layer around the island region and the floating second layer.
    Type: Application
    Filed: April 13, 2009
    Publication date: October 14, 2010
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING LTD.
    Inventors: Chunshan Yin, Lee Wee Teo, Chung Foong Tan, Jae Gon Lee
  • Publication number: 20090224326
    Abstract: A circuit having a circuit control terminal, a primary circuit and a protection circuit is provided. The primary circuit includes a primary control terminal and a primary gate oxide of a thickness T1. The primary control terminal is coupled to the circuit control terminal. The protection circuit having a protection control terminal is coupled to the primary circuit. The protection circuit includes a protection gate oxide of a second thickness T2 which is less than T1. The protection gate oxide reduces plasma induced damage in the primary circuit.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 10, 2009
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.
    Inventors: Chung Foong TAN, Jae Gon LEE, Lee Wee TEO, Elgin QUEK, Chunshan YIN