Patents by Inventor Chang Beom Chung

Chang Beom Chung 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: 8394493
    Abstract: A die bonding film composition for semiconductor assembly may include an elastomer resin containing a hydroxyl group, a carboxyl group, or an epoxy group. The die bonding film composition may also include a film forming resin having a glass transition temperature (Tg) in the range of about 0 to 200° C., an epoxy resin, a phenol resin, a hardener, a silane coupling agent, and a filler.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: March 12, 2013
    Assignee: Cheil Industries, Inc.
    Inventors: Yong Woo Hong, Su Mi Im, Wan Jung Kim, Ki Sung Jung, Chang Beom Chung
  • Patent number: 8309219
    Abstract: A multifunction tape for a semiconductor package and configured to bond to a device-formed side of a semiconductor substrate having a plurality of devices thereon while performing a process of grinding a side of the semiconductor substrate opposite to the device-formed side and a process of dicing the semiconductor substrate into individual chips with a dicing tape having a UV-curable adhesive layer bonded to the ground side of the semiconductor substrate, the multifunction tape being bonded to the individual chips while the individual chips, separated from each other by the dicing process, are picked up and die-attached and a method of manufacturing a semiconductor device using the same, the multifunction tape including a base film; a UV-curable adhesive layer on one side of the base film; and first and second bonding layers on the adhesive layer.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: November 13, 2012
    Assignee: Cheil Industries, Inc.
    Inventors: Yong Ha Hwang, Jae Hyun Cho, Gyu Seok Song, Chang Beom Chung
  • Patent number: 8211540
    Abstract: An adhesive film composition includes an elastomer resin having one or more of a hydroxy group, a carboxyl group, or an epoxy group, a film-forming resin, a silylated phenolic curing resin, an epoxy resin, a curing accelerator, and a filler.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: July 3, 2012
    Assignee: Cheil Industries, Inc.
    Inventors: Yong Woo Hong, Ki Seong Jung, Wan Jung Kim, Su Mi Im, Sang Jin Kim, Chang Beom Chung
  • Patent number: 8193259
    Abstract: A photocurable pressure-sensitive adhesive (PSA) composition includes an acrylic PSA binder, the acrylic PSA binder including at least one fluoro group in an amount of about 6 mol % to about 30 mol % based on a total amount of the acrylic PSA binder, a thermal curing agent, and a photoinitiator.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: June 5, 2012
    Assignee: Cheil Industries, Inc.
    Inventors: Seung Jib Choi, Kyoung Jin Ha, Jun Suk Kim, Kyung Ju Lee, Chang Beom Chung
  • Publication number: 20120029117
    Abstract: An adhesive film composition includes a polymer binder; a curable resin; and about 40 to about 60 wt. % of solvent, wherein the solvent is a binary solvent consisting essentially of at least a first solvent with a boiling point of about 40° C. to about 100° C. and at least a second solvent with a boiling point of about 140° C. to about 200° C.
    Type: Application
    Filed: October 6, 2011
    Publication date: February 2, 2012
    Applicant: CHEIL INDUSTRIES, INC.
    Inventors: Han Nim CHOI, Ki Tae Song, Chi Seok Hwang, Hea Kyung Kim, Chang Beom Chung
  • Publication number: 20100330780
    Abstract: A multifunction tape for a semiconductor package and configured to bond to a device-formed side of a semiconductor substrate having a plurality of devices thereon while performing a process of grinding a side of the semiconductor substrate opposite to the device-formed side and a process of dicing the semiconductor substrate into individual chips with a dicing tape having a UV-curable adhesive layer bonded to the ground side of the semiconductor substrate, the multifunction tape being bonded to the individual chips while the individual chips, separated from each other by the dicing process, are picked up and die-attached and a method of manufacturing a semiconductor device using the same, the multifunction tape including a base film; a UV-curable adhesive layer on one side of the base film; and first and second bonding layers on the adhesive layer.
    Type: Application
    Filed: September 14, 2010
    Publication date: December 30, 2010
    Inventors: Yong Ha HWANG, Jae Hyun Cho, Gyu Seok Song, Chang Beom Chung
  • Publication number: 20090162650
    Abstract: An adhesive film composition for semiconductor assembly includes an elastomer resin, an epoxy resin, a phenolic curing resin, and a silsesquioxane oligomer. The silsesquioxane oligomer may be present in an amount of about 0.01 to about 3 wt. %, based on the total solids content of the composition.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 25, 2009
    Inventors: Yong Woo Hong, Wan Jung Kim, Su Mi Im, Ah Ram Pyun, Chul Jeong, Sang Jin Kim, Chang Beom Chung
  • Publication number: 20090141472
    Abstract: An adhesive film for semiconductor assembly includes a binder portion 1, a sub-binder portion, and a cured portion, wherein the binder portion 1 and the sub-binder portion co-exist in a co-continuous phase structure after curing begins.
    Type: Application
    Filed: October 24, 2008
    Publication date: June 4, 2009
    Inventors: Han Nim Choi, Ki Tae Song, Tae Shin Eom, Chang Beom Chung
  • Publication number: 20090143497
    Abstract: A photocurable pressure-sensitive adhesive (PSA) composition includes an acrylic PSA binder, the acrylic PSA binder including at least one fluoro group in an amount of about 6 mol % to about 30 mol % based on a total amount of the acrylic PSA binder, a thermal curing agent, and a photoinitiator.
    Type: Application
    Filed: October 2, 2008
    Publication date: June 4, 2009
    Inventors: Seung Jib Choi, Kyoung Jin Ha, Jun Suk Kim, Kyung Ju Lee, Chang Beom Chung
  • Publication number: 20090136748
    Abstract: An adhesive film composition includes a polymer binder; a curable resin; and about 40 to about 60 wt. % of solvent, wherein the solvent is a binary solvent consisting essentially of at least a first solvent with a boiling point of about 40° C. to about 100° C. and at least a second solvent with a boiling point of about 140° C. to about 200° C.
    Type: Application
    Filed: November 28, 2008
    Publication date: May 28, 2009
    Inventors: Han Nim Choi, Ki Tae Song, Chi Seok Hwang, Hea Kyung Kim, Chang Beom Chung
  • Publication number: 20090110940
    Abstract: An adhesive film composition includes an elastomer resin having one or more of a hydroxy group, a carboxyl group, or an epoxy group, a film-forming resin, a silylated phenolic curing resin, an epoxy resin, a curing accelerator, and a filler
    Type: Application
    Filed: October 8, 2008
    Publication date: April 30, 2009
    Inventors: Yong Woo Hong, Ki Seong Jung, Wan Jung Kim, Su Mi Im, Sang Jin Kim, Chang Beom Chung
  • Publication number: 20080160300
    Abstract: A composition, including a polymer binder resin A, a UV-curing acrylate B, a heat curing agent C, and a photopolymerization initiator D. The composition includes about 20 to about 150 parts by weight of the UV-curing acrylate B per 100 parts by weight of the polymer binder resin A, and the UV-curing acrylate B is a solid or near-solid at room temperature and has a viscosity of about 10,000 cps or more at 40° C.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 3, 2008
    Inventors: Yong Ha Hwang, Gyu Seok Song, Hee Yeon Ki, Kyoung Jin Ha, Jae Hyun Cho, Jun Suk Kim, Chang Beom Chung
  • Publication number: 20080102284
    Abstract: A die bonding film composition for semiconductor assembly may include an elastomer resin containing a hydroxyl group, a carboxyl group, or an epoxy group. The die bonding film composition may also include a film forming resin having a glass transition temperature (Tg) in the range of about 0 to 200° C., an epoxy resin, a phenol resin, a hardener, a silane coupling agent, and a filler.
    Type: Application
    Filed: July 19, 2007
    Publication date: May 1, 2008
    Inventors: Yong Woo Hong, Su Mi Im, Wan Jung Kim, Ki Sung Jung, Chang Beom Chung