Patents by Inventor Kap-Seok Kang

Kap-Seok Kang 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: 8133641
    Abstract: Disclosed are a half tone mask having a multi semi-transmission part and a manufacturing method thereof that can pattern a plurality of layers using one mask, by having at least two or more semi-transmission parts with light transmission that are different from each other. The half tone mask having a multi semi-transmission part comprises a transparent substrate, a light transmission part formed the transparent substrate to transmit irradiation light of a predetermined wavelength band, a light shielding part formed the transparent substrate to shield the irradiation light of the predetermined wavelength band, and at least two or more semi-transmission parts formed by depositing semi-transmission material on the transparent substrate to pass through the irradiation light of the predetermined wavelength band with each different light transmission.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: March 13, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventors: Kap-Seok Kang, Jae-Woo Park, Sang-Uk Park, Yu-Kyung Sim, Keun-Sik Lee
  • Publication number: 20120052420
    Abstract: A half tone mask having a multi semi-transmission part and a manufacturing method thereof that can pattern a plurality of layers using one mask, by having at least two or more semi-transmission parts with light transmission that are different from each other, are provided. The half tone mask having a multi semi-transmission part includes a transparent substrate, a light transmission part formed the transparent substrate to transmit irradiation light of a predetermined wavelength band, a light shielding part formed the transparent substrate to shield the irradiation light of the predetermined wavelength band, and at least two or more semi-transmission parts formed by depositing semi-transmission material on the transparent substrate to pass through the irradiation light of the predetermined wavelength band with each different light transmission.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 1, 2012
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Kap-Seok KANG, Jae-Woo PARK, Sang-Uk PARK, Yu-Kyung SIM, Keun-Sik LEE
  • Publication number: 20100159367
    Abstract: Disclosed are a half tone mask having a multi semi-transmission part and a manufacturing method thereof that can pattern a plurality of layers using one mask, by having at least two or more semi-transmission parts with light transmission that are different from each other. The half tone mask having a multi semi-transmission part comprises a transparent substrate, a light transmission part formed the transparent substrate to transmit irradiation light of a predetermined wavelength band, a light shielding part formed the transparent substrate to shield the irradiation light of the predetermined wavelength band, and at least two or more semi-transmission parts formed by depositing semi-transmission material on the transparent substrate to pass through the irradiation light of the predetermined wavelength band with each different light transmission.
    Type: Application
    Filed: May 11, 2007
    Publication date: June 24, 2010
    Applicant: LG MICRON LTD.
    Inventors: Kap-Seok KANG, Jae-Woo PARK, Sang-Uk PARK, Yu-Kyung SIM, Keun-Sik LEE
  • Patent number: 7704646
    Abstract: A half tone mask having a transparent substrate, a light semitransmission layer, and a light shield layer; and a method for fabricating the same. The halftone mask is applied to multiple cycles of a photolithography process, thus shortening a time taken to fabricate the mask and reducing the production costs of the mask. Since a desired pattern is uniformly formed through a light semitransmission layer of the half tone mask of the present invention according to the uniformity of a chrome oxide (CrxOy) film, i.e., the uniformity in sputtering, the halftone mask is not limited in size.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: April 27, 2010
    Assignee: LG Innotek Co., Ltd.
    Inventors: Sang-Uk Park, Kap-Seok Kang, Keun-Sik Lee, Jae-Woo Park, Yu-Kyung Sim
  • Publication number: 20060099521
    Abstract: A half tone mask having a transparent substrate, a light semitransmission layer, and a light shield layer, a method for fabricating the same, and a flat panel display using the same. The half tone mask is applied to multiple cycles of a photolithography process, thus shortening a time taken to fabricate the mask and reducing the production costs of the mask. Since a desired pattern is uniformly formed through a light semitransmission layer of the half tone mask of the present invention according to the uniformity of a chrome oxide (CrxOy) film, i.e., the uniformity in sputtering, the half tone mask is not limited in size.
    Type: Application
    Filed: November 7, 2005
    Publication date: May 11, 2006
    Inventors: Sang-Uk Park, Kap-Seok Kang, Keun-Sik Lee, Jae-Woo Park, Yu-Kyung Sim