Patents by Inventor Cheal-Sang Yoon

Cheal-Sang Yoon 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: 8042593
    Abstract: A semiconductor chip bonding apparatus maintains a semiconductor chip in a parallel state with respect to a lead frame when applying a bonding load.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cheal-Sang Yoon, Yong-Dae Ha, Jae-Ryoung Lee, Jeong-Soon Cho, Bum-Woo Lee, Pil-June Kim
  • Publication number: 20090035105
    Abstract: Provided are an apparatus, method for separating a chip and a method for fabricating the apparatus. An apparatus for separating a chip, according to example embodiments, may include a suction holder. The suction holder may include an upper surface with at least one suction hole to suction and fix an adhesive tape to which a plurality of semiconductor chips may be attached. The apparatus for separating a chip may also include a rotatable plunger in the suction holder. The rotatable plunger may include an upper end configured to pass through the at least one suction hole and to project over the suction holder upon rotation of the rotatable plunger. The apparatus for separating a chip may also include a vertically movable plunger lifter. The vertically movable plunger lifter may be configured to rotate the rotatable plunger by contacting and raising a lower end of the rotatable plunger.
    Type: Application
    Filed: July 25, 2008
    Publication date: February 5, 2009
    Inventors: Cheal-Sang Yoon, Yong-Dae Ha, Jae-Ryoung Lee, Jeong-Soon Cho, Bum-Woo Lee, Young-Gon Hwang, Mok-Kun Kwon
  • Publication number: 20090020229
    Abstract: A semiconductor chip bonding apparatus maintains a semiconductor chip a parallel state with a lead frame when applying a bonding load.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 22, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Cheal-Sang YOON, Yong-Dae Ha, Jae-Ryoung Lee, Jeong-Soon Cho, Bum-Woo Lee, Pil-June Kim
  • Publication number: 20080000587
    Abstract: A bonding apparatus for a semiconductor package determines whether a bottom of a bonding head is contaminated, and may include a contamination detecting unit for a bonding head attached to a body to apply pressure to the semiconductor package. The contamination detecting unit is below the bonding head to detect contamination on the bottom of the bonding head, a bonding block, and a bonding stage.
    Type: Application
    Filed: February 26, 2007
    Publication date: January 3, 2008
    Inventors: Yong-dae Ha, Cheal-sang Yoon, Jeong-soon Cho, Bum-woo Lee, Young-gon Hwang, Mok-kun Kwon