Patents by Inventor Ramasamy Chockalingam

Ramasamy Chockalingam 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: 20240063154
    Abstract: The disclosed subject matter relates generally to methods of forming a semiconductor device, such as a moisture sensor. More particularly, the present disclosure relates to a method of forming a sensor device and a bond pad in the same dielectric region. The present disclosure also relates to the semiconductor devices formed by the method disclosed herein.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 22, 2024
    Inventors: EE JAN KHOR, JUAN BOON TAN, RAMASAMY CHOCKALINGAM
  • Publication number: 20240038653
    Abstract: A structure for a capacitor is provided. The structure includes a first metal electrode, such as a copper electrode, having at least one dielectric region, such as a dielectric, therein. A first dielectric layer is on the first metal electrode, and a second metal electrode is on the first dielectric layer. At least one via is on the second metal electrode. Each via is over the at least one dielectric region in the first metal electrode.
    Type: Application
    Filed: August 1, 2022
    Publication date: February 1, 2024
    Inventors: EeJan Khor, Ramasamy Chockalingam, Juan Boon Tan, Pannirselvam Somasuntharam
  • Patent number: 11855019
    Abstract: The disclosed subject matter relates generally to methods of forming a semiconductor device, such as a moisture sensor. A plurality of electrodes and a bond pad are formed in a dielectric region. A passivation layer is formed on each electrode in the plurality of electrodes and the bond pad. A barrier layer is formed on the passivation layer. A plurality of trenches are formed to extend through the barrier layer and into the dielectric region. Formation of the trenches simultaneously exposes an upper surface of the bond pad. A moisture sensitive dielectric layer is formed on the barrier layer. Formation of the moisture sensitive dielectric layer also fills the trenches to form a plurality of projections, each projection being formed between two electrodes in the plurality of electrodes.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: December 26, 2023
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Ee Jan Khor, Juan Boon Tan, Ramasamy Chockalingam
  • Publication number: 20230238342
    Abstract: Structures for a static random access memory bit cell and methods of forming a structure for a static random access memory bit cell. The structure includes a first field-effect transistor on a first substrate and a second field-effect transistor on a second substrate. The first field-effect transistor includes a first gate, and the second field-effect transistor includes a second gate. The structure further includes a first interconnect structure on the first substrate and a second interconnect structure on the second substrate. The first interconnect structure includes a first metal feature connected to the first gate, and the first metal feature has a first surface. The second interconnect structure includes a second metal feature connected to the second gate, and the second metal feature has a second surface that is connected to the first surface of the first metal feature.
    Type: Application
    Filed: January 26, 2022
    Publication date: July 27, 2023
    Inventors: Hari Balan, Juan Boon Tan, Ramasamy Chockalingam, Wanbing Yi
  • Publication number: 20230217843
    Abstract: A semiconductor memory device is provided. The memory device includes a first electrode, a resistive layer, and a second electrode. The resistive layer is arranged over the first electrode. The second electrode is arranged over the resistive layer. The second electrode includes a lower surface and an extension extending from under the lower surface. The extension is at least partially arranged within the resistive layer.
    Type: Application
    Filed: January 4, 2022
    Publication date: July 6, 2023
    Inventors: JIANXUN SUN, RAMASAMY CHOCKALINGAM, JUAN BOON TAN
  • Patent number: 11646279
    Abstract: A semiconductor structure may be provided, including a conductive pad, a slot arranged through the conductive pad, a passivation layer arranged over the conductive pad and a plurality of electrical interconnects arranged under the conductive pad. The conductive pad may include an electrically conductive material and the slot may include an electrically insulating material. The passivation layer may include an opening that may expose a portion of the conductive pad and the slot may be arranged laterally between the exposed portion of the conductive pad and the plurality of electrical interconnects.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: May 9, 2023
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Xiaodong Li, Ramasamy Chockalingam, Juan Boon Tan
  • Publication number: 20230123402
    Abstract: A capacitor structure for an integrated circuit (IC) and a related method of forming are disclosed. The capacitor structure includes three electrodes. A planar bottom electrode has a first insulator layer thereover. A middle electrode includes a conductive layer over the first insulator layer and a plurality of spaced conductive pillars contacting the conductive layer. A second insulator layer extends over and between the plurality of spaced conductive pillars and contacts the conductive layer. An upper electrode extends over the second insulator layer, and hence, over and between the plurality of spaced conductive pillars. A length of the upper electrode can be controlled, in part, by the number and dimensions of the conductive pillars to increase capacitance capabilities per area.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 20, 2023
    Inventors: EeJan Khor, Ramasamy Chockalingam, Juan Boon Tan
  • Publication number: 20230069830
    Abstract: A device may include a first conductive element and an interlevel dielectric arranged over the first conductive element. The device may further include a dual damascene opening including a first end, a second end, and sidewalls extending between the first and second ends, the sidewalls extending through the interlevel dielectric. A metal-insulator-metal (MIM) stack may line the dual damascene opening. The MIM stack may include a first conductive liner lining the sidewalls and the second end of the dual damascene opening, an insulator layer lining the first conductive liner, and a second conductive liner lining the insulator layer. A first metal interconnect may be disposed in and filling the dual damascene opening lined with the MIM stack.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 9, 2023
    Inventors: Kwang Sing YEW, Ramasamy CHOCKALINGAM, Juan Boon TAN
  • Patent number: 11444045
    Abstract: A semiconductor device is provided that includes a bond pad, an insulating layer, and a bonding structure. The bond pad is in a dielectric layer and the insulating layer is over the bond pad; the insulating layer having an opening over the bond pad formed therein. The bonding structure electrically couples the bond pad in the opening. The bonding structure has a height that at least extends to an upper surface of the insulating layer.
    Type: Grant
    Filed: August 16, 2020
    Date of Patent: September 13, 2022
    Assignee: GlobalFoundries Singapore Pte. Ltd.
    Inventors: Ramasamy Chockalingam, Juan Boon Tan, Xiaodong Li, Kai Chong Chan, Ranjan Rajoo
  • Publication number: 20220270991
    Abstract: A semiconductor structure may be provided, including a conductive pad, a slot arranged through the conductive pad, a passivation layer arranged over the conductive pad and a plurality of electrical interconnects arranged under the conductive pad. The conductive pad may include an electrically conductive material and the slot may include an electrically insulating material. The passivation layer may include an opening that may expose a portion of the conductive pad and the slot may be arranged laterally between the exposed portion of the conductive pad and the plurality of electrical interconnects.
    Type: Application
    Filed: February 25, 2021
    Publication date: August 25, 2022
    Inventors: Xiaodong LI, Ramasamy CHOCKALINGAM, Juan Boon TAN
  • Publication number: 20220252534
    Abstract: The disclosed subject matter relates generally to methods of forming a semiconductor device, such as a moisture sensor. More particularly, the present disclosure relates to a method of forming a sensor device and a bond pad in the same dielectric region. The present disclosure also relates to the semiconductor devices formed by the method disclosed herein.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 11, 2022
    Inventors: EE JAN KHOR, JUAN BOON TAN, RAMASAMY CHOCKALINGAM
  • Publication number: 20220052000
    Abstract: A semiconductor device is provided that includes a bond pad, an insulating layer, and a bonding structure. The bond pad is in a dielectric layer and the insulating layer is over the bond pad; the insulating layer having an opening over the bond pad formed therein. The bonding structure electrically couples the bond pad in the opening. The bonding structure has a height that at least extends to an upper surface of the insulating layer.
    Type: Application
    Filed: August 16, 2020
    Publication date: February 17, 2022
    Inventors: RAMASAMY CHOCKALINGAM, JUAN BOON TAN, XIAODONG LI, KAI CHONG CHAN, RANJAN RAJOO
  • Patent number: 11244915
    Abstract: A semiconductor device is provided that includes a dielectric layer, a bond pad, a passivation layer and a planar barrier. The bond pad is positioned in the dielectric layer. The passivation layer is positioned over the dielectric layer and has an opening over the bond pad. The planar barrier is positioned on the bond pad.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: February 8, 2022
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Ramasamy Chockalingam, Juan Boon Tan, Chee Kong Leong, Ranjan Rajoo, Xuesong Rao, Xiaodong Li
  • Patent number: 11217496
    Abstract: A device and methods for forming the device is provided. The device includes a substrate and circuit elements thereon. The device further includes a metallization layer over the substrate. The metallization layer includes interconnects interconnecting the circuit elements. A test pad is disposed over an uppermost interconnect in the metallization layer. The test pad is coupled to one or more circuit elements via the interconnects. The test pad is configured for testing the one or more circuit elements. A crack stop protection seal surrounding the test pad is provided. The crack stop protection seal confines damage caused by probing at the test pad from propagating to an area beyond the crack stop protection seal.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: January 4, 2022
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Ramasamy Chockalingam, Juan Boon Tan, Wanbing Yi
  • Publication number: 20210134742
    Abstract: A semiconductor device is provided that includes a dielectric layer, a bond pad, a passivation layer and a planar barrier. The bond pad is positioned in the dielectric layer. The passivation layer is positioned over the dielectric layer and has an opening over the bond pad. The planar barrier is positioned on the bond pad.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Inventors: RAMASAMY CHOCKALINGAM, JUAN BOON TAN, CHEE KONG LEONG, RANJAN RAJOO, XUESONG RAO, XIAODONG LI
  • Publication number: 20210013166
    Abstract: The disclosed subject matter relates to a structure and method to improve bond pad reliability of semiconductor devices. According to an aspect of the present disclosure, a bond pad structure is provided that includes a dielectric layer and at least one bond pad in the dielectric layer, wherein the bond pad has a top surface. A passivation layer has an opening over the bond pad, wherein the opening has sidewalls. A low-k barrier layer is covering the sidewalls of the opening and the top surface of the bond pad. Protective structures are formed over the sidewalls of the opening.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 14, 2021
    Inventors: RAMASAMY CHOCKALINGAM, JUAN BOON TAN, IAN MELVILLE
  • Patent number: 10892239
    Abstract: The disclosed subject matter relates to a structure and method to improve bond pad reliability of semiconductor devices. According to an aspect of the present disclosure, a bond pad structure is provided that includes a dielectric layer and at least one bond pad in the dielectric layer, wherein the bond pad has a top surface. A passivation layer has an opening over the bond pad, wherein the opening has sidewalls. A low-k barrier layer is covering the sidewalls of the opening and the top surface of the bond pad. Protective structures are formed over the sidewalls of the opening.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: January 12, 2021
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Ramasamy Chockalingam, Juan Boon Tan, Ian Melville
  • Publication number: 20200357707
    Abstract: A device and methods for forming the device is provided. The device includes a substrate and circuit elements thereon. The device further includes a metallization layer over the substrate. The metallization layer includes interconnects interconnecting the circuit elements. A test pad is disposed over an uppermost interconnect in the metallization layer. The test pad is coupled to one or more circuit elements via the interconnects. The test pad is configured for testing the one or more circuit elements. A crack stop protection seal surrounding the test pad is provided. The crack stop protection seal confines damage caused by probing at the test pad from propagating to an area beyond the crack stop protection seal.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 12, 2020
    Inventors: Ramasamy CHOCKALINGAM, Juan Boon TAN, Wanbing YI
  • Patent number: 10658316
    Abstract: According to an aspect of the present disclosure, a semiconductor device is provided that includes a substrate, at least one bond pad, a passivation layer and a NBLoK layer. The bond pad is formed over the substrate. The passivation layer is deposited over the substrate and has an opening defined by end portions of the passivation layer over the bond pad. The NBLoK layer is covering the end portions of the passivation layer.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: May 19, 2020
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Xiaodong Li, Juan Boon Tan, Ramasamy Chockalingam
  • Publication number: 20200105690
    Abstract: According to an aspect of the present disclosure, a semiconductor device is provided that includes a substrate, at least one bond pad, a passivation layer and a NBLoK layer. The bond pad is formed over the substrate. The passivation layer is deposited over the substrate and has an opening defined by end portions of the passivation layer over the bond pad. The NBLoK layer is covering the end portions of the passivation layer.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 2, 2020
    Inventors: XIAODONG LI, JUAN BOON TAN, RAMASAMY CHOCKALINGAM