Patents by Inventor ChunFei Cheung

ChunFei Cheung 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: 7464456
    Abstract: A slider separating method includes bonding a row bar containing a plurality of slider-forming portions to a bonding surface of a cutting fixture along a side surface that extends in its length direction; cutting the row bar bonded on the cutting fixture into individual sliders along cutting gaps provided between the slider-forming portions; decreasing bonding force between each diced slider and the bonding surface; and separating the sliders with decreased bonding force from the cutting fixture by pushing each slider along a side direction being parallel to the bonding surface and perpendicular to the length direction and holding and receiving the slider to a slider tray having recesses formed therein which is partitioned according to the sliders. The method can reliably and efficiently separate a row bar containing a plurality of slider-forming portions into individual sliders without depending upon size or arrangement pitch of the sliders and hold these sliders.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: December 16, 2008
    Assignee: Sae Magnetics (H.K.) Ltd.
    Inventors: Ryuji Fujii, ChunFei Cheung
  • Publication number: 20060130315
    Abstract: A slider separating method, which is provided for cutting a row bar constituted with a plurality of slider-forming portions along its length direction into individual sliders, includes a bonding process to bond said row bar to a bonding surface of a cutting fixture along a side surface that extends in the length direction; a cutting process to cut said row bar bonded on said cutting fixture into individual sliders along cutting gaps provided between the slider-forming portions; a bonding force decreasing process to decrease bonding force between each diced slider and the bonding surface; and a separating process to push out and separate each slider with decreased bonding force from said cutting fixture along a side direction being parallel to said bonding surface and perpendicular to said length direction.
    Type: Application
    Filed: November 23, 2005
    Publication date: June 22, 2006
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Fujii Ryuji, ChunFei Cheung