Patents by Inventor Li Tung Wang

Li Tung Wang 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).

  • Vertical device having a protrusion source
    Patent number: 11916131
    Abstract: According to an exemplary embodiment, a method of forming a vertical device is provided. The method includes: providing a protrusion over a substrate; forming an etch stop layer over the protrusion; laterally etching a sidewall of the etch stop layer; forming an insulating layer over the etch stop layer; forming a film layer over the insulating layer and the etch stop layer; performing chemical mechanical polishing on the film layer and exposing the etch stop layer; etching a portion of the etch stop layer to expose a top surface of the protrusion; forming an oxide layer over the protrusion and the film layer; and performing chemical mechanical polishing on the oxide layer and exposing the film layer.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: February 27, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: De-Fang Chen, Teng-Chun Tsai, Cheng-Tung Lin, Li-Ting Wang, Chun-Hung Lee, Ming-Ching Chang, Huan-Just Lin
  • Method and apparatus for networking data devices using an uplink module
    Patent number: 5854790
    Abstract: A network (10) includes several local networks (32, 34, 36). Each local network (32, 34, 36) includes a repeater (12, 16, 20) coupled to data devices (14, 18, 22). The combination of the repeater (12, 16, 20) and the data devices (14, 18, 22) form a collision domain for managing communications within the local network (32, 34, 36). Uplink modules (40, 44) manage communications between the local networks (32, 34, 36) by isolating collision domains and generating collision indications when messages cannot be transmitted. The uplink modules (40, 44) may also implement bridging, routing, or filtering capabilities that inhibit transmission of an intra-network message beyond its local network (32, 34, 36).
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: December 29, 1998
    Assignee: Compaq Computer Corp.
    Inventors: Craig M. Scott, Li Tung Wang, Arthur T. Bennett, Ahmad Nouri
  • Multiport repeater with collision detection and jam signal generation
    Patent number: 5796738
    Abstract: A network (10) includes several local networks (32, 34, 36). Each local network (32, 34, 36) includes a repeater (12, 16, 20) coupled to data devices (14, 18, 22). The combination of the repeater (12, 16, 20) and the data devices (14, 18, 22) form a collision domain for managing communications within the local network (32, 34, 36). Uplink modules (40, 44) manage communications between the local networks (32, 34, 36) by isolating collision domains and generating collision indications when messages cannot be transmitted. The uplink modules (40, 44) may also implement bridging, routing, or filtering capabilities that inhibit transmission of an intra-network message beyond its local network (32, 34, 36).
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: August 18, 1998
    Assignee: Compaq Computer Corporation
    Inventors: Craig M. Scott, Li Tung Wang, Arthur T. Bennett, Ahmad Nouri