Patents by Inventor Navab Singh

Navab Singh 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: 10882737
    Abstract: A through silicon interposer wafer and method of manufacturing the same. A through silicon interposer wafer having at least one cavity formed therein for MEMS applications and a method of manufacturing the same are provided. The through silicon interposer wafer includes one or more filled silicon vias formed sufficiently proximate to the at least one cavity to provide support for walls of the at least one cavity during subsequent processing of the interposer wafer.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: January 5, 2021
    Assignee: Agency for Science, Technology and Research
    Inventors: Navab Singh, Daw Don Cheam
  • Patent number: 10669152
    Abstract: Various embodiments may provide a device arrangement. The device arrangement may include a substrate including a conductive layer. The device arrangement may further include a microelectromechanical systems (MEMS) device monolithically integrated with the substrate, wherein the MEMS device may be electrically coupled to the conductive layer. A cavity may be defined through the conductive layer for acoustically isolating the MEMS device MEMS device from the substrate. At least one anchor structure may be defined by the conductive layer to support the MEMS device.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: June 2, 2020
    Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Navab Singh, Jae Wung Lee, Srinivas Merugu
  • Publication number: 20200145762
    Abstract: Various embodiments may provide an acoustic device. The acoustic device may include a substrate, an electrically conductive first membrane, a first spacer holding the first membrane to form a first acoustic chamber between the substrate and the first membrane. The acoustic device may additionally include an electrically conductive second membrane, a second spacer holding the second membrane to form a second acoustic chamber between the first membrane and the second membrane, and a plurality of electrical pads in electrical connection with the first membrane and the second membrane.
    Type: Application
    Filed: June 19, 2018
    Publication date: May 7, 2020
    Inventors: Navab Singh, Xiaolin Zhang, Wing Wai Chung
  • Publication number: 20190084826
    Abstract: A Through Silicon Interposer Wafer and Method of Manufacturing the Same A through silicon interposer wafer having at least one cavity formed therein for MEMS applications and a method of manufacturing the same are provided. The through silicon interposer wafer includes one or more filled silicon vias formed sufficiently proximate to the at least one cavity to provide support for walls of the at least one cavity during subsequent processing of the interposer wafer.
    Type: Application
    Filed: March 23, 2017
    Publication date: March 21, 2019
    Inventors: Navab SINGH, Daw Don CHEAM
  • Publication number: 20180312399
    Abstract: Various embodiments may provide a device arrangement. The device arrangement may include a substrate including a conductive layer. The device arrangement may further include a microelectromechanical systems (MEMS) device monolithically integrated with the substrate, wherein the MEMS device may be electrically coupled to the conductive layer. A cavity may be defined through the conductive layer for acoustically isolating the MEMS device MEMS device from the substrate. At least one anchor structure may be defined by the conductive layer to support the MEMS device.
    Type: Application
    Filed: October 6, 2016
    Publication date: November 1, 2018
    Inventors: Navab SINGH, Jae Wung LEE, Srinivas MERUGU
  • Patent number: 9650237
    Abstract: An electromechanical device and method of fabrication thereof comprising: providing a first wafer with a circuit arrangement on a first surface thereof and a first electrode on a second surface thereof; forming first and second via structures from the first surface to the second surface of the first wafer, said first via electrically connecting the first electrode with the circuit arrangement; providing a second wafer with a suspended structure on a first surface thereof; forming a second electrode on the suspended structure; forming an interconnect structure on the first surface of the second wafer that electrically connects with the second electrode; bonding the first wafer to the second wafer with the second surface of the first wafer facing the first surface of the second wafer, with the second via structure electrically connecting the circuit arrangement to the interconnect structure, and the first and second electrodes forming a capacitive structure.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: May 16, 2017
    Assignee: Agency for Science, Technology and Research
    Inventors: Ilker E. Ocak, Julius Ming Lin Tsai, Navab Singh
  • Patent number: 9505612
    Abstract: A method for thin film encapsulation (TFE) of a microelectromechanical system (MEMS) device, including providing a substrate; forming a MEMS device on the substrate; forming one or more etching channels adjacent to the MEMS device; providing one or more cavities below the MEMS device; and forming one or more cavities above the MEMS device.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: November 29, 2016
    Assignee: Agency for Science, Technology and Research
    Inventors: Jae-Wung Lee, Jaibir Sharma, Navab Singh
  • Publication number: 20160308013
    Abstract: A semiconductor device production method includes preparing a first structure having a first planar semiconductor layer, and a first columnar semiconductor layer on the first planar semiconductor layer. A first high concentration semiconductor layer is formed in a lower region of the first columnar semiconductor layer and in a region of the first planar semiconductor layer below the first columnar semiconductor layer. An insulating layer, a metal film, and a semiconductor film are sequentially formed on the first structure, and the semiconductor film, the metal film, and the insulating layer are sequentially etched with each leaving a sidewall shape on the sidewall on the first columnar semiconductor layer following etching. Another semiconductor film is then formed on the sidewall shape after etching the insulating film.
    Type: Application
    Filed: June 24, 2016
    Publication date: October 20, 2016
    Inventors: Fujio MASUOKA, Hiroki NAKAMURA, Shintaro ARAI, Tomohiko KUDO, King-Jien CHUI, Yisuo LI, Yu JIANG, Xiang LI, Zhixian CHEN, Nansheng SHEN, Vladimir BLIZNETSOV, Kavitha Devi BUDDHARAJU, Navab SINGH
  • Publication number: 20160289063
    Abstract: An electromechanical device and method of fabrication thereof comprising: providing a first wafer with a circuit arrangement on a first surface thereof and a first electrode on a second surface thereof; forming first and second via structures from the first surface to the second surface of the first wafer, said first via electrically connecting the first electrode with the circuit arrangement; providing a second wafer with a suspended structure on a first surface thereof; forming a second electrode on the suspended structure; forming an interconnect structure on the first surface of the second wafer that electrically connects with the second electrode; bonding the first wafer to the second wafer with the second surface of the first wafer facing the first surface of the second wafer, with the second via structure electrically connecting the circuit arrangement to the interconnect structure, and the first and second electrodes forming a capacitive structure.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 6, 2016
    Inventors: Ilker E. Ocak, Julius Ming Lin Tsai, Navab Singh
  • Publication number: 20160289064
    Abstract: A method of fabricating encapsulated microelectromechanical system (MEMS) devices, comprising: providing a substrate having one or more MEMS devices formed thereon; depositing a sacrificial layer over the substrate and the one or more MEMS devices; patterning the sacrificial layer to define one or more cavities in the sacrificial layer and around the one or more MEMS devices; forming a cap layer over the sacrificial layer and the one or more cavities, the cap layer having one or more etch holes defined therein; removing the sacrificial layer by etching the sacrificial layer at least through the one or more etch holes; and depositing a sealing layer over the cap layer and the one or more etch holes to encapsulate the one or more MEMS devices, the substrate, and the cap layer.
    Type: Application
    Filed: December 16, 2014
    Publication date: October 6, 2016
    Inventors: Jae-Wung Lee, Jaibir Sharma, Navab Singh
  • Publication number: 20150357428
    Abstract: The semiconductor device according to the present invention is an nMOS SGT and is composed of a first n+ type silicon layer, a first gate electrode containing metal and a second n+ type silicon layer arranged on the surface of a first columnar silicon layer positioned vertically on a first planar silicon layer. Furthermore, a first insulating film is positioned between the first gate electrode and the first planar silicon layer, and a second insulating film is positioned on the top surface of the first gate electrode. In addition, the first gate electrode containing metal is surrounded by the first n+ type silicon layer, the second n+ type silicon layer, the first insulating film and the second insulating film.
    Type: Application
    Filed: August 20, 2015
    Publication date: December 10, 2015
    Inventors: Fujio MASUOKA, Hiroki NAKAMURA, Shintaro ARAI, Tomohiko KUDO, King-Jien CHUI, Yisuo LI, Yu JIANG, Xiang LI, Zhixian CHEN, Nansheng SHEN, Vladimir BLIZNETSOV, Kavitha Devi BUDDHARAJU, Navab SINGH
  • Patent number: 9165932
    Abstract: A memory cell and a method of manufacturing a memory cell are provided. The memory cell includes a substrate; at least one first electrode disposed above the substrate; at least one second electrode disposed above the at least one first electrode; a moveable electrode disposed between the at least one first electrode and the at least one second electrode; wherein the moveable electrode is configured to move between the at least one first electrode and the at least one second electrode; wherein the moveable electrode comprises metal.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: October 20, 2015
    Assignee: Agency for Science, Technology and Research
    Inventors: Vincent Pott, Navab Singh
  • Patent number: 9153697
    Abstract: The semiconductor device according to the present invention is an nMOS SGT and is composed of a first n+ type silicon layer, a first gate electrode containing metal and a second n+ type silicon layer arranged on the surface of a first columnar silicon layer positioned vertically on a first planar silicon layer. Furthermore, a first insulating film is positioned between the first gate electrode and the first planar silicon layer, and a second insulating film is positioned on the top surface of the first gate electrode. In addition, the first gate electrode containing metal is surrounded by the first n+ type silicon layer, the second n+ type silicon layer, the first insulating film and the second insulating film.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: October 6, 2015
    Assignee: UNISANTIS ELECTRONICS SINGAPORE PTE LTD.
    Inventors: Fujio Masuoka, Hiroki Nakamura, Shintaro Arai, Tomohiko Kudo, King-Jien Chui, Yisuo Li, Yu Jiang, Xiang Li, Zhixian Chen, Nansheng Shen, Vladimir Bliznetsov, Kavitha Devi Buddharaju, Navab Singh
  • Patent number: 9087975
    Abstract: According to embodiments of the present invention, a resistive memory arrangement is provided. The resistive memory arrangement includes a nanowire, and a resistive memory cell including a resistive layer including a resistive changing material, wherein at least a section of the resistive layer is arranged covering at least a portion of a surface of the nanowire, and a conductive layer arranged on at least a part of the resistive layer. According to further embodiments of the present invention, a method of forming a resistive memory arrangement is also provided.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: July 21, 2015
    Assignee: Agency for Science, Technology and Research
    Inventors: Xinpeng Wang, Xiang Li, Navab Singh, Guo-Qiang Patrick Lo
  • Patent number: 9082838
    Abstract: In a first step, a planar silicon layer is formed on a silicon substrate and first and second pillar-shaped silicon layers are formed on the planar silicon layer; a second step includes forming an oxide film hard mask on the first and second pillar-shaped silicon layers, and forming a second oxide film on the planar silicon layer, the second oxide film being thicker than a gate insulating film; and a third step includes forming the gate insulating film around each of the first pillar-shaped silicon layer and the second pillar-shaped silicon layer, forming a metal film and a polysilicon film around the gate insulating film, the polysilicon film having a thickness that is smaller than one half a distance between the first pillar-shaped silicon layer and the second pillar-shaped silicon layer, forming a third resist for forming a gate line, and performing anisotropic etching to form the gate line.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: July 14, 2015
    Assignee: Unisantis Electronics Singapore Pte. Ltd.
    Inventors: Fujio Masuoka, Nozomu Harada, Hiroki Nakamura, Navab Singh, Zhixian Chen, Aashit Ramachandra Kamath, Xinpeng Wang
  • Publication number: 20150175408
    Abstract: A method for thin film encapsulation (TFE) of a microelectromechanical system (MEMS) device, including providing a substrate; forming a MEMS device on the substrate; forming one or more etching channels adjacent to the MEMS device; providing one or more cavities below the MEMS device; and forming one or more cavities above the MEMS device.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 25, 2015
    Inventors: Jae-Wung Lee, Jaibir Sharma, Navab Singh
  • Patent number: 8836051
    Abstract: A method for producing a semiconductor device includes a first step including forming a planar silicon layer and forming first and second pillar-shaped silicon layers; a second step including forming a gate insulating film around each of the first and second pillar-shaped silicon layers, forming a metal film and a polysilicon film around the gate insulating film, the thickness of the polysilicon film being smaller than half of a distance between the first and second pillar-shaped silicon layers, forming a third resist, and forming a gate line; and a third step including depositing a fourth resist so that a portion of the polysilicon film on an upper side wall of each of the first and second pillar-shaped silicon layers is exposed, removing the exposed portion of the polysilicon film, removing the fourth resist, and removing the metal film to form first and second gate electrodes.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: September 16, 2014
    Assignee: Unisantis Electronics Singapore Pte. Ltd.
    Inventors: Fujio Masuoka, Nozomu Harada, Hiroki Nakamura, Xiang Li, Xinpeng Wang, Zhixian Chen, Aashit Ramachandra Kamath, Navab Singh
  • Publication number: 20140147955
    Abstract: A method for encapsulating a micro-electromechanical (MEMS) device, the method comprising: providing a sacrificial layer arrangement over the MEMS device; providing a first encapsulation layer over the sacrificial layer arrangement, the first encapsulation layer defining at least one aperture; providing a second encapsulation layer over the at least one aperture, the second encapsulation layer being provided to allow removal of the sacrificial layer arrangement around the second encapsulation layer; and removing the sacrificial layer arrangement through the at least one aperture to allow the second encapsulation layer to cover the at least one aperture thereby encapsulating the MEMS device.
    Type: Application
    Filed: November 29, 2013
    Publication date: May 29, 2014
    Applicant: Agency for Science, Technology and Research
    Inventors: Jae-Wung Lee, Jaibir Sharma, Navab Singh, Julius Ming Ling Tsai
  • Patent number: 8735750
    Abstract: Embodiments provide a switching device. The switching device includes a substrate, which includes a contact region. The switching device further includes a vertical layer arrangement extending from the substrate next to the contact region. The vertical layer arrangement includes a control layer. The switching device further includes a freestanding silicon cantilever extending vertically from the contact region.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: May 27, 2014
    Assignee: Agency for Science, Technology and Research
    Inventors: Jiaqiang Eldwin Ng, Ming Lin Julius Tsai, Navab Singh, Nansheng Shen
  • Publication number: 20140091372
    Abstract: In a first step, a planar silicon layer is formed on a silicon substrate and first and second pillar-shaped silicon layers are formed on the planar silicon layer; a second step includes forming an oxide film hard mask on the first and second pillar-shaped silicon layers, and forming a second oxide film on the planar silicon layer, the second oxide film being thicker than a gate insulating film; and a third step includes forming the gate insulating film around each of the first pillar-shaped silicon layer and the second pillar-shaped silicon layer, forming a metal film and a polysilicon film around the gate insulating film, the polysilicon film having a thickness that is smaller than one half a distance between the first pillar-shaped silicon layer and the second pillar-shaped silicon layer, forming a third resist for forming a gate line, and performing anisotropic etching to form the gate line.
    Type: Application
    Filed: September 25, 2013
    Publication date: April 3, 2014
    Applicant: UNISANTIS ELECTRONICS SINGAPORE PTE. LTD.
    Inventors: FUJIO MASUOKA, NOZOMU HARADA, HIROKI NAKAMURA, NAVAB SINGH, ZHIXIAN CHEN, AASHIT RAMACHANDRA KAMATH, XINPENG WANG