Patents Assigned to Cheng Mei Instrument Technology Co., Ltd.
  • Patent number: 9810640
    Abstract: A panel inspection apparatus is provided. The panel inspection apparatus has a support platform, a delivery platform and a panel inspection assembly. The delivery platform is disposed on the support platform, and the delivery platform has a push module for delivering the panel. The panel inspection assembly includes a plurality of light source modules and a plurality of image-taking modules corresponding to the light source modules. The light source modules include a front light source, a first horizontal light source, and a back light source. The image-taking modules include a front light image-taking module, a first horizontal light image-taking module, and a back light image-taking module. The push module delivers the panel across the support platform so that a plurality of light beams emitted from the light source modules can scan the panel to finish the panel inspection process.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: November 7, 2017
    Assignee: CHENG MEI INSTRUMENT TECHNOLOGY CO., LTD.
    Inventors: Chao-Yi Yeh, Pin-Chuan Su, Shang-Iun Yang, Chih Yuan Liu
  • Patent number: 9785285
    Abstract: A detection method for a touch panel is provided. The method includes the following steps: (a) using a transfer device to move the touch panel; (b) placing the touch panel on an LCD monitor; (c) emitting at least one striped light pattern from the LCD monitor; (d) using at least one camera to capture an image that is formed by the at least one striped light pattern through the touch panel; and (e) using a processor to analyze the image to complete the detection of the touch panel.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: October 10, 2017
    Assignee: CHENG MEI INSTRUMENT TECHNOLOGY CO., LTD.
    Inventors: Chao-Yi Yeh, Hung Chun Lo, Shang-Iun Yang, Chi-Yuan Lin
  • Patent number: 8311666
    Abstract: A system separating defective dies from a wafer comprises a film frame platform and a pick-and-place device. The film frame platform comprises a support table assembly configured for supporting a film frame assembly and a platform surface configured to receive the placement of bins thereupon. The pick-and-place device is configured for moving in a linear manner between the support table assembly and the platform surface.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: November 13, 2012
    Assignee: Cheng Mei Instrument Technology Co., Ltd.
    Inventors: Te Chun Chen, Chien Chao Huang, Cheng Tao Tsai
  • Patent number: 8275188
    Abstract: A system for inspecting chips in a tray comprises a three-dimensional sensor, a focus computing unit, an image sensor and a focusing device. The three-dimensional sensor is used to obtain the height signals of surfaces of the chips. The focus computing unit calculates the focusing positions of chips. The surface inspection sensor is used to inspect the surfaces of the chips. The focusing device is used to bring the images of the surfaces of the chips into the focus of the image sensor.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: September 25, 2012
    Assignee: Cheng Mei Instrument Technology Co., Ltd.
    Inventor: Cheng Tao Tsai
  • Patent number: 8226346
    Abstract: A tray handling apparatus comprises a plurality of guides, a chuck device, a linear movement device, and a rack and pinion device. A space defined by the erected guides is used to hold a tray stack. The chuck of the chuck device is located at the center position of the bottom area of the space. The linear movement device is used to move the chuck relative to the guides. The rack and pinion device is used to cause the guides to move symmetrically. When an operator moves any one of the guides, the other guides move symmetrically and the center of the bottom area of the space surrounded by the guides remains at the same location during the movement of the guides. The operator does not need to adjust the position of the chuck if the positions of the guides are changed.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: July 24, 2012
    Assignee: Cheng Mei Instrument Technology Co., Ltd.
    Inventor: Cheng Tao Tsai
  • Patent number: 7878336
    Abstract: A system for inspection of chips on a tray comprises an unloading arm device, a first support platform, and a plurality of first tray-handling apparatuses. The first support platform is disposed adjacent to the unloading arm device, movable along a first direction. The plurality of first tray-handling apparatuses are arrayed along the first direction on the first support platform. Each of the plurality of first tray-handling apparatuses provides a particular size of tray for inspection, different from the size of tray provided by other first tray-handling apparatuses, wherein the first platform is configured to move a desired one of the plurality of first tray handling apparatuses before the unloading arm device.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: February 1, 2011
    Assignee: Cheng Mei Instrument Technology Co., Ltd.
    Inventors: Cheng Tao Tsai, Chao Sheng Yu
  • Publication number: 20100166535
    Abstract: A system separating defective dies from a wafer comprises a film frame platform and a pick-and-place device. The film frame platform comprises a support table assembly configured for supporting a film frame assembly and a platform surface configured to receive the placement of bins thereupon. The pick-and-place device is configured for moving in a linear manner between the support table assembly and the platform surface.
    Type: Application
    Filed: December 28, 2009
    Publication date: July 1, 2010
    Applicant: CHENG MEI INSTRUMENT TECHNOLOGY CO., LTD.
    Inventors: TE CHUN CHEN, CHIEN CHAO HUANG, CHENG TAO TSAI
  • Publication number: 20100063619
    Abstract: A system for inspection of chips on a tray comprises an unloading arm device, a first support platform, and a plurality of first tray-handling apparatuses. The first support platform is disposed adjacent to the unloading arm device, movable along a first direction. The plurality of first tray-handling apparatuses are arrayed along the first direction on the first support platform. Each of the plurality of first tray-handling apparatuses provides a particular size of tray for inspection, different from the size of tray provided by other first tray-handling apparatuses, wherein the first platform is configured to move a desired one of the plurality of first tray handling apparatuses before the unloading arm device.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 11, 2010
    Applicant: CHENG MEI INSTRUMENT TECHNOLOGY CO., LTD.
    Inventors: CHENG TAO TSAI, CHAO SHENG YU
  • Publication number: 20090214326
    Abstract: A tray handling apparatus comprises a plurality of guides, a chuck device, a linear movement device, and a rack and pinion device. A space defined by the erected guides is used to hold a tray stack. The chuck of the chuck device is located at the center position of the bottom area of the space. The linear movement device is used to move the chuck relative to the guides. The rack and pinion device is used to cause the guides to move symmetrically. When an operator moves any one of the guides, the other guides move symmetrically and the center of the bottom area of the space surrounded by the guides remains at the same location during the movement of the guides. The operator does not need to adjust the position of the chuck if the positions of the guides are changed.
    Type: Application
    Filed: February 24, 2009
    Publication date: August 27, 2009
    Applicant: CHENG MEI INSTRUMENT TECHNOLOGY CO., LTD.
    Inventor: CHENG TAO TSAI
  • Publication number: 20090169094
    Abstract: A system for inspecting chips in a tray comprises a three-dimensional sensor, a focus computing unit, an image sensor and a focusing device. The three-dimensional sensor is used to obtain the height signals of surfaces of the chips. The focus computing unit calculates the focusing positions of chips. The surface inspection sensor is used to inspect the surfaces of the chips. The focusing device is used to bring the images of the surfaces of the chips into the focus of the image sensor.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Applicant: CHENG MEI INSTRUMENT TECHNOLOGY CO., LTD.
    Inventor: CHENG TAO TSAI