Patents by Inventor Lian Aik TAN

Lian Aik TAN 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).

  • Apparatus and method for automatically setting, calibrating and monitoring or measuring pickup head position and force during component pickup operations
    Patent number: 10475690
    Abstract: A system is disclosed for calibrating the compressive forces exerted on a component during a component retrieval process from a carrier or support surface by a component handling device. The system includes a sensor, a component pickup assembly having a reference structure, a housing and a spring guide holder coupled to a suction tip. A resilient member may reside within the housing and the reference structure such that the spring guide holder and the housing are spaced from each other to define a variable first gap thereinbetween. A gate is formed by the reference structure and a sheath located on the housing whereby the reference structure is spaced from the housing to define a variable second gap thereinbetween. A detection structure is located within the variable second gap such that the sensor is able to detect portions of the detection structure.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: November 12, 2019
    Assignee: SEMICONDUCTOR TECHNOLOGIES & INSTRUMENTS PTE. LTD.
    Inventors: Lian Seng Ng, Lian Aik Tan, Mun Fai Lye
  • APPARATUS AND METHOD FOR AUTOMATICALLY SETTING, CALIBRATING AND MONITORING OR MEASURING PICKUP HEAD POSITION AND FORCE DURING COMPONENT PICKUP OPERATIONS
    Publication number: 20170365501
    Abstract: A system is disclosed for calibrating the compressive forces exerted on a component during a component retrieval process from a carrier or support surface by a component handling device. The system includes a sensor, a component pickup assembly having a reference structure, a housing and a spring guide holder coupled to a suction tip. A resilient member may reside within the housing and the reference structure such that the spring guide holder and the housing are spaced from each other to define a variable first gap thereinbetween. A gate is formed by the reference structure and a sheath located on the housing whereby the reference structure is spaced from the housing to define a variable second gap thereinbetween. A detection structure is located within the variable second gap such that the sensor is able to detect portions of the detection structure.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 21, 2017
    Inventors: Lian Seng NG, Lian Aik TAN, Mun Fai LYE