Patents by Inventor Tae Je Cho

Tae Je Cho 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: 9171825
    Abstract: A semiconductor device and a method of fabricating the same includes providing a first semiconductor chip which has first connection terminals, providing a second semiconductor chip which comprises top and bottom surfaces facing each other and has second connection terminals and a film-type first underfill material formed on the bottom surface thereof, bonding the first semiconductor chip to a mounting substrate by using the first connection terminals, bonding the first semiconductor chip and the second semiconductor chip by using the first underfill material, and forming a second underfill material which fills a space between the mounting substrate and the first semiconductor chip and covers side surfaces of the first semiconductor chip and at least part of side surfaces of the second semiconductor chip.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: October 27, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Sick Park, In-Young Lee, Byoung-Soo Kwak, Min-Soo Kim, Sang-Wook Park, Tae-Je Cho
  • Patent number: 9165916
    Abstract: A semiconductor package and a method of fabricating the same. The method may include mounting a lower stack including a plurality of lower semiconductor chips on a substrate and mounting an upper stack including a plurality of upper semiconductor chips on the lower stack. According to example embodiments of the inventive concept, the semiconductor package can be easily fabricated.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: October 20, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyunsoo Chung, Seungduk Baek, In-Young Lee, Tae-Je Cho
  • Publication number: 20150228591
    Abstract: A semiconductor package including a chip stack structure having first and second chips that are secured to a dissipating plate by using a mold layer such that the second chip is combined to the dissipating plate and the first chip is bonded to the second chip, and the first chip has a smaller thickness than the second chip, a circuit board onto which the chip stack structure is mounted in a bonded manner, and an under-fill layer filling a gap space between the circuit board and first chip, a side surface of the under-fill layer being connected to a sidewall of the mold layer may be provided. Due to this bulk mounting structure, the warpage and bonding failures of the semiconductor package may be substantially reduced.
    Type: Application
    Filed: December 3, 2014
    Publication date: August 13, 2015
    Inventors: Ji-Hwang KIM, Keum-Hee MA, Tae-Je CHO
  • Publication number: 20150221517
    Abstract: A method of manufacturing a semiconductor device capable of thinning a semiconductor chip can be performed while preventing the semiconductor chip from being damaged. A method of manufacturing a semiconductor device includes: preparing a semiconductor substrate including a plurality of semiconductor chips, attaching the semiconductor substrate to a support substrate with an adhesive support film, removing an edge region of the semiconductor substrate together with a portion of the adhesive support film between the edge region of the semiconductor substrate and the support substrate and, thereafter, polishing the semiconductor substrate to thin the semiconductor substrate.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 6, 2015
    Inventors: Eun-mi Kim, Un-byoung Kang, Tae-je Cho, Jung-seok Ahn
  • Publication number: 20150200154
    Abstract: Provided is a stacked semiconductor package which minimizes a limitation on a design of a lower semiconductor chip due to a characteristic of an upper semiconductor chip stacked on the lower chip. The stacked semiconductor package includes a lower chip having a through electrode area in which a plurality of through electrodes are disposed; and at least one upper chip stacked on the lower chip and having a pad area in which a plurality of pads corresponding to the plurality of through electrodes are disposed. The pad area is disposed along a central axis bisecting an active surface of the upper chip. The central axis where the pad area of the upper chip is disposed is placed at a position which is shifted from a central axis in a longitudinal direction of an active surface of the lower chip.
    Type: Application
    Filed: January 14, 2015
    Publication date: July 16, 2015
    Inventors: Yun-seok CHOI, Hyeok-man KWON, Cha-jea JO, Tae-je CHO
  • Patent number: 9076881
    Abstract: Provided are a bump structure includes a first bump and a second bump, a semiconductor package including the same, and a method of manufacturing the same. The bump structure includes: first bump provided on a connection pad of a substrate, the first bump including a plurality of nano-wires extending from the connection pad and a body connecting end portions of the plurality of nano-wires; and a second bump provided on the body of the first bump.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: July 7, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yun-Hyeok Im, Jong-Yeon Kim, Tae-Je Cho, Un-Byoung Kang
  • Patent number: 9070729
    Abstract: A wafer processing method, by which a device wafer may be aligned and bonded to a carrier wafer to perform a back grinding process for the device wafer and may be separated from the carrier wafer after performing the back grinding process, and a method of manufacturing a semiconductor device by using the wafer processing method are provided. The wafer processing method includes: disposing a first magnetic material on a front side of a wafer and disposing a second magnetic material on a carrier wafer, wherein a surface of the first magnetic material and a surface of the second magnetic material, which face each other, have opposite polarities; aligning and bonding the wafer to the carrier wafer by magnetic attraction between the first magnetic material and the second magnetic material; grinding a back side of the wafer to make the wafer thin; and separating the wafer from the carrier wafer.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: June 30, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-wook Ji, Hyoung-yol Mun, Yeong-Iyeol Park, Tae-je Cho
  • Publication number: 20150162265
    Abstract: Semiconductor packages including chips having through silicon vias (TSVs) and methods of manufacturing the same may be provided to provide reliable and thinner semiconductor packages by mitigating or preventing a crack from occurring at an uppermost chip. The semiconductor package including a substrate, a first chip stacked on the substrate, the first chip including a plurality of through silicon vias (TSVs), an uppermost chip stacked on the first chip, the uppermost chip being thicker than the first chip, a first gap fill portion covering at least a portion of a side surface of the uppermost chip while filling a space between the first chip and the uppermost chip, and a sealant for sealing the first chip, the uppermost chip, and the first gap fill portion may be provided.
    Type: Application
    Filed: August 4, 2014
    Publication date: June 11, 2015
    Inventors: Cha-Jea JO, Tae-Je CHO
  • Publication number: 20150137345
    Abstract: A semiconductor package includes a heat spreader. The semiconductor package includes a substrate, a first semiconductor chip disposed on the substrate, and a second semiconductor chip disposed on the first semiconductor chip. The heat spreader may be formed on the first semiconductor chip. A thermal interfacial material (TIM) layer may be formed to be in contact with the first semiconductor chip and the heat spreader and may cover side surfaces of the second semiconductor chip. Heat generated by the first semiconductor chip may be emitted through the TIM layer and the heat spreader. Thermal stress caused by a difference in coefficients of thermal expansion (CTEs) between the substrate and the first semiconductor chip may be distributed to ensure structural stability.
    Type: Application
    Filed: October 1, 2014
    Publication date: May 21, 2015
    Inventors: Eun-Kyoung CHOI, Sang-Uk HAN, Tae-Je CHO
  • Publication number: 20150130083
    Abstract: A semiconductor device and a method of fabricating the same includes providing a first semiconductor chip which has first connection terminals, providing a second semiconductor chip which comprises top and bottom surfaces facing each other and has second connection terminals and a film-type first underfill material formed on the bottom surface thereof, bonding the first semiconductor chip to a mounting substrate by using the first connection terminals, bonding the first semiconductor chip and the second semiconductor chip by using the first underfill material, and forming a second underfill material which fills a space between the mounting substrate and the first semiconductor chip and covers side surfaces of the first semiconductor chip and at least part of side surfaces of the second semiconductor chip.
    Type: Application
    Filed: September 17, 2014
    Publication date: May 14, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Sick PARK, In-Young LEE, Byoung-Soo KWAK, Min-Soo KIM, Sang-Wook PARK, Tae-Je CHO
  • Publication number: 20150130078
    Abstract: A semiconductor package of a POP structure includes first and second semiconductor packages, the second directly mounted on the first and containing a plurality of semiconductor chips. Chips in the second package are electrically connected via a through-electrode and the first and second packages are connected through a connection member disposed on the top surface of the first package.
    Type: Application
    Filed: September 29, 2014
    Publication date: May 14, 2015
    Inventors: Ji-seok Hong, Won-keun Kim, Tae-je Cho, Jung-hwan Kim
  • Publication number: 20150130030
    Abstract: A semiconductor package includes: a package base substrate; at least one first semiconductor chip disposed on the package base substrate; a first molding member disposed at a same level as the at least one first semiconductor chip and that does not cover an upper surface of the at least one first semiconductor chip; at least one second semiconductor chip stacked on the at least one first semiconductor chip so as to extend over the at least one first semiconductor chip and the first molding member, wherein the at least one first semiconductor chip and at least part of the first molding member are disposed between the package base substrate and the at least one second semiconductor chip; and a second molding member disposed at a same level as the at least one second semiconductor chip.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 14, 2015
    Inventors: Keum-hee Ma, Tae-je Cho, Ji-hwang Kim
  • Publication number: 20150102505
    Abstract: A semiconductor package and a method of fabricating the same. The method may include mounting a lower stack including a plurality of lower semiconductor chips on a substrate and mounting an upper stack including a plurality of upper semiconductor chips on the lower stack. According to example embodiments of the inventive concept, the semiconductor package can be easily fabricated.
    Type: Application
    Filed: July 9, 2014
    Publication date: April 16, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: HYUNSOO CHUNG, SEUNGDUK BAEK, IN-YOUNG LEE, TAE-JE CHO
  • Publication number: 20150102485
    Abstract: A non-conductive material layer, selected from a non-conductive film and a non-conductive polymer paste, and containing a dispersion of zinc (Zn) particles is disclosed, together with semiconductor packages including the non-conductive material layer. The non-conductive material layer contains zinc (Zn) particles having an average particle diameter of about 1 nm to about 200 nm in a non-conductive polymer base material of a film type, and a semiconductor package includes the non-conductive film. By using the non-conductive film and/or the non-conductive paste containing the zinc dispersion, e a semiconductor package having excellent electric connection properties and high reliability may be manufactured through simple processes at low manufacturing costs.
    Type: Application
    Filed: May 28, 2014
    Publication date: April 16, 2015
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Samsung Electronics Co., Ltd.
    Inventors: Un-byoung Kang, Kyung-wook Paik, Tae-Je Cho, Young-kun Jee, Sun-kyoung Seo, Yong-won Choi, Ji-won Shin
  • Publication number: 20150102468
    Abstract: A chip-stacked semiconductor package includes a first chip having a first front surface, a first back surface, and a first connection member on the first front surface, the first back surface being opposite to the first front surface; a second chip having a second front surface, a second back surface, a second connection member and a first through-silicon via (TSV) electrically connected to the second connection member, the second back surface opposite to the second front surface, and the second connection member on the second front face; and a first sealing member between the first front surface and the second front surface, the first sealing member filling a space between the first connection member and the second connection member, the first connection member of the first chip and the second connection member of the second chip being symmetric with respect to each other.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 16, 2015
    Inventors: Un-Byoung KANG, Tae-Je CHO, Byung-Hyug ROH
  • Publication number: 20150093880
    Abstract: A wafer processing method, by which a device wafer may be aligned and bonded to a carrier wafer to perform a back grinding process for the device wafer and may be separated from the carrier wafer after performing the back grinding process, and a method of manufacturing a semiconductor device by using the wafer processing method are provided. The wafer processing method includes: disposing a first magnetic material on a front side of a wafer and disposing a second magnetic material on a carrier wafer, wherein a surface of the first magnetic material and a surface of the second magnetic material, which face each other, have opposite polarities; aligning and bonding the wafer to the carrier wafer by magnetic attraction between the first magnetic material and the second magnetic material; grinding a back side of the wafer to make the wafer thin; and separating the wafer from the carrier wafer.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: Sang-wook Ji, Hyoung-yol Mun, Yeong-Iyeol Park, Tae-je Cho
  • Patent number: 8980689
    Abstract: Provided is a method of fabricating a multi-chip stack package. The method includes preparing single-bodied lower chips having a single-bodied lower chip substrate having a first surface and a second surface disposed opposite the first surface, bonding unit package substrates onto the first surface of the single-bodied lower chip substrate to form a single-bodied substrate-chip bonding structure, separating the single-bodied substrate-chip bonding structure into a plurality of unit substrate-chip bonding structures, preparing single-bodied upper chips having a single-bodied upper chip substrate, bonding the plurality of unit substrate-chip bonding structures onto a first surface of the single-bodied upper chip substrate to form a single-bodied semiconductor chip stack structure, and separating the single-bodied semiconductor chip stack structure into a plurality of unit semiconductor chip stack structures.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: March 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byoung-Soo Kwak, Cha-Jea Jo, Tae-Je Cho, Sang-Uk Han
  • Publication number: 20150048493
    Abstract: In one embodiment, a semiconductor package includes a circuit substrate, a plurality of semiconductor chips stacked on the circuit substrate, insulating adhesive patterns interposed between the semiconductor chips, a heat slug provided on an uppermost semiconductor chip and adhered to the uppermost semiconductor chip by a heat dissipative adhesive pattern, and a mold structure provided on the circuit substrate to cover sidewalls of the semiconductor chips, the insulating adhesive patterns, the heat dissipative adhesive pattern and the heat slug. A failure of the semiconductor package during a manufacturing process of the mold structure may be reduced. The semiconductor package may therefore have good operating characteristics and reliability.
    Type: Application
    Filed: June 28, 2014
    Publication date: February 19, 2015
    Inventors: Tae-Hong MIN, Young-Kun JEE, Tae-Je CHO
  • Publication number: 20150001685
    Abstract: Provided are semiconductor packages having through electrodes and methods of fabricating the same. The method may include may include forming a wafer-level package including first semiconductor chips stacked on a second semiconductor chip, forming a chip-level package including fourth semiconductor chips stacked on a third semiconductor chip stacking a plurality of the chip-level packages on a back surface of the second semiconductor substrate of the wafer-level package, polishing the first mold layer of the wafer-level package and the first semiconductor chips to expose a first through electrodes of the first semiconductor chip, and forming outer electrodes on the polished first semiconductor chips to be connected to the first through electrodes, respectively.
    Type: Application
    Filed: April 29, 2014
    Publication date: January 1, 2015
    Inventors: Hyunsoo CHUNG, Jongyeon KIM, In-Young LEE, Tae-Je CHO
  • Publication number: 20140367839
    Abstract: A semiconductor package includes a first semiconductor package, a second semiconductor package, and a package-connecting member. The first semiconductor package includes a first substrate, a chip stacking portion disposed on the first substrate and including a plurality of first semiconductor chips, and a first sealant for surrounding the chip stacking portion on the first substrate. The second semiconductor package includes a second substrate, at least one second semiconductor chip disposed on the second substrate, and a second sealant for surrounding the second semiconductor chip on the second substrate. The package-connecting member electrically connects the first semiconductor package and the second semiconductor package.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Yun-Seok CHOI, Tae-je CHO