Patents by Inventor Tsz W. Chan

Tsz W. Chan 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: 20180144795
    Abstract: Memory devices and methods for fabricating memory devices have been disclosed. One such method includes forming a memory stack out of a plurality of elements. A sidewall liner is formed on a sidewall of the memory stack using a physical vapor deposition (PVD) process, including an adhesion species and a dielectric, such that the adhesion species intermixes with an element of the memory stack to terminate unsatisfied atomic bonds of the element and the dielectric forms a dielectric film with the adhesive species on the sidewall.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 24, 2018
    Inventors: Yongjun Jeff Hu, Tsz W. Chan, Christopher W. Petz, Everett Allen McTeer
  • Publication number: 20170358629
    Abstract: Memory devices and methods for fabricating memory devices have been disclosed. One such memory device includes a first electrode material formed on a word line material. A selector device material is formed on the first electrode material. A second electrode material is formed on the selector device material. A phase change material is formed on the second electrode material. A third electrode material is formed on the phase change material. An adhesion species is plasma doped into sidewalls of the memory stack and a liner material is formed on the sidewalls of the memory stack. The adhesion species intermixes with an element of the memory stack and the sidewall liner to terminate unsatisfied atomic bonds of the element and the sidewall liner.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 14, 2017
    Inventors: Yongjun Jeff Hu, Tsz W. Chan, Swapnil Lengade, Everett Allen McTeer, Shu Qin
  • Publication number: 20170309818
    Abstract: A memory cell comprising a threshold switching material over a first electrode on a substrate. The memory cell includes a second electrode over the threshold switching material and at least one dielectric material between the threshold switching material and at least one of the first electrode and the second electrode. A memory material overlies the second electrode. The dielectric material may directly contact the threshold switching material and each of the first electrode and the second electrode. Memory cells including only one dielectric material between the threshold switching material and an electrode are disclosed. A memory device including the memory cells and methods of forming the memory cells are also described.
    Type: Application
    Filed: July 6, 2017
    Publication date: October 26, 2017
    Inventors: Tsz W. Chan, D.V. Nirmal Ramaswamy, Qian Tao, Yongjun Jeff Hu, Everett A. McTeer
  • Patent number: 9716225
    Abstract: A memory cell comprising a threshold switching material over a first electrode on a substrate. The memory cell includes a second electrode over the threshold switching material and at least one dielectric material between the threshold switching material and at least one of the first electrode and the second electrode. A memory material overlies the second electrode. The dielectric material may directly contact the threshold switching material and each of the first electrode and the second electrode. Memory cells including only one dielectric material between the threshold switching material and an electrode are disclosed. A memory device including the memory cells and methods of forming the memory cells are also described.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: July 25, 2017
    Assignee: Micron Technology, Inc.
    Inventors: Tsz W. Chan, D. V. Nirmal Ramaswamy, Qian Tao, Yongjun Jeff Hu, Everett A. McTeer
  • Patent number: 9673256
    Abstract: Memory devices and methods for fabricating memory devices have been disclosed. One such memory device includes a first electrode material formed on a word line material. A selector device material is formed on the first electrode material. A second electrode material is formed on the selector device material. A phase change material is formed on the second electrode material. A third electrode material is formed on the phase change material. An adhesion species is plasma doped into sidewalls of the memory stack and a liner material is formed on the sidewalls of the memory stack. The adhesion species intermixes with an element of the memory stack and the sidewall liner to terminate unsatisfied atomic bonds of the element and the sidewall liner.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: June 6, 2017
    Assignee: Micron Technology, Inc.
    Inventors: Yongjun Jeff Hu, Tsz W. Chan, Swapnil Lengade, Everett Allen McTeer, Shu Qin
  • Publication number: 20160218282
    Abstract: Memory devices and methods for fabricating memory devices have been disclosed. One such method includes forming the memory stack out of a plurality of elements. An adhesion species is formed on at least one sidewall of the memory stack wherein the adhesion species has a gradient structure that results in the adhesion species intermixing with an element of the memory stack to terminate unsatisfied atomic bonds of the element. The gradient structure further comprises a film of the adhesion species on an outer surface of the at least one sidewall. A dielectric material is implanted into the film of the adhesion species to form a sidewall liner.
    Type: Application
    Filed: April 4, 2016
    Publication date: July 28, 2016
    Inventors: Tsz W. Chan, Yongjun Jeff Hu, Swapnil Lengade, Shu Qin, Everett Allen McTeer
  • Publication number: 20160190209
    Abstract: Memory devices and methods for fabricating memory devices have been disclosed. One such memory device includes a first electrode material formed on a word line material. A selector device material is formed on the first electrode material. A second electrode material is formed on the selector device material. A phase change material is formed on the second electrode material. A third electrode material is formed on the phase change material. An adhesion species is plasma doped into sidewalls of the memory stack and a liner material is formed on the sidewalls of the memory stack. The adhesion species intermixes with an element of the memory stack and the sidewall liner to terminate unsatisfied atomic bonds of the element and the sidewall liner.
    Type: Application
    Filed: March 7, 2016
    Publication date: June 30, 2016
    Inventors: Yongjun Jeff Hu, Tsz W. Chan, Swapnil Lengade, Everett Allen McTeer, Shu Qin
  • Patent number: 9306159
    Abstract: Memory devices and methods for fabricating memory devices have been disclosed. One such method includes forming the memory stack out of a plurality of elements. An adhesion species is formed on at least one sidewall of the memory stack wherein the adhesion species has a gradient structure that results in the adhesion species intermixing with an element of the memory stack to terminate unsatisfied atomic bonds of the element. The gradient structure further comprises a film of the adhesion species on an outer surface of the at least one sidewall. A dielectric material is implanted into the film of the adhesion species to form a sidewall liner.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: April 5, 2016
    Assignee: Micron Technology, Inc.
    Inventors: Tsz W. Chan, Yongjun Jeff Hu, Swapnil Lengade, Shu Qin, Everett Allen McTeer
  • Patent number: 9281471
    Abstract: Memory devices and methods for fabricating memory devices have been disclosed. One such memory device includes a first electrode material formed on a word line material. A selector device material is formed on the first electrode material. A second electrode material is formed on the selector device material. A phase change material is formed on the second electrode material. A third electrode material is formed on the phase change material. An adhesion species is plasma doped into sidewalls of the memory stack and a liner material is formed on the sidewalls of the memory stack. The adhesion species intermixes with an element of the memory stack and the sidewall liner to terminate unsatisfied atomic bonds of the element and the sidewall liner.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: March 8, 2016
    Assignee: Micron Technology, Inc.
    Inventors: Yongjun Jeff Hu, Tsz W. Chan, Swapnil Lengade, Everett Allen McTeer, Shu Qin
  • Publication number: 20160064666
    Abstract: A memory cell comprising a threshold switching material over a first electrode on a substrate. The memory cell includes a second electrode over the threshold switching material and at least one dielectric material between the threshold switching material and at least one of the first electrode and the second electrode. A memory material overlies the second electrode. The dielectric material may directly contact the threshold switching material and each of the first electrode and the second electrode. Memory cells including only one dielectric material between the threshold switching material and an electrode are disclosed. A memory device including the memory cells and methods of forming the memory cells are also described.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 3, 2016
    Inventors: Tsz W. Chan, D.V. Nirmal Ramaswamy, Qian Tao, Yongjun Jeff Hu, Everett A. McTeer
  • Publication number: 20150318038
    Abstract: Memory devices and methods for fabricating memory devices have been disclosed. One such method includes forming a memory stack out of a plurality of elements. A sidewall liner is formed on a sidewall of the memory stack using a physical vapor deposition (PVD) process, including an adhesion species and a dielectric, such that the adhesion species intermixes with an element of the memory stack to terminate unsatisfied atomic bonds of the element and the dielectric forms a dielectric film with the adhesive species on the sidewall.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 5, 2015
    Applicant: Micron Technology, Inc.
    Inventors: Yongjun Jeff Hu, Tsz W. Chan, Christopher W. Petz, Everett Allen McTeer
  • Publication number: 20150318467
    Abstract: Memory devices and methods for fabricating memory devices have been disclosed. One such memory device includes a first electrode material formed on a word line material. A selector device material is formed on the first electrode material. A second electrode material is formed on the selector device material. A phase change material is formed on the second electrode material. A third electrode material is formed on the phase change material. An adhesion species is plasma doped into sidewalls of the memory stack and a liner material is formed on the sidewalls of the memory stack. The adhesion species intermixes with an element of the memory stack and the sidewall liner to terminate unsatisfied atomic bonds of the element and the sidewall liner.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 5, 2015
    Applicant: Micron Technology, Inc.
    Inventors: Yongjun Jeff Hu, Tsz W. Chan, Swapnil Lengade, Everett Allen McTeer, Shu Qin
  • Publication number: 20150318468
    Abstract: Memory devices and methods for fabricating memory devices have been disclosed. One such method includes forming the memory stack out of a plurality of elements. An adhesion species is formed on at least one sidewall of the memory stack wherein the adhesion species has a gradient structure that results in the adhesion species intermixing with an element of the memory stack to terminate unsatisfied atomic bonds of the element. The gradient structure further comprises a film of the adhesion species on an outer surface of the at least one sidewall. A dielectric material is implanted into the film of the adhesion species to form a sidewall liner.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 5, 2015
    Applicant: Micron Technology, Inc.
    Inventors: Tsz W. Chan, Yongjun Jeff Hu, Swapnil Lengade, Shu Qin, Everett Allen McTeer