Patents by Inventor Seok-rak Chang

Seok-rak Chang 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: 8373097
    Abstract: An apparatus for thermally processing a plurality of substrates including a process chamber into which a boat having a plurality of substrates stacked thereon is loaded, and a heater chamber separate from the process chamber and having a plurality of heaters to apply heat to the process chamber. Here, the heaters are installed to correspond to all sides of the plurality of substrates. Therefore, it is possible to minimize a temperature distribution in the process chamber and uniformly supply heat to the entire region of the plurality of substrates.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: February 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Heung-Yeol Na, Min-Jae Jeong, Jong-Won Hong, Eu-Gene Kang, Seok-Rak Chang, Ki-Yong Lee, Jin-Wook Seo, Tae-Hoon Yang, Yun-Mo Chung, Byung-Soo So, Byoung-Keon Park, Dong-Hyun Lee, Kil-Won Lee, Won-Bong Baek, Jong-Ryuk Park, Bo-Kyung Choi, Ivan Maidanchuk, Jae-Wan Jung
  • Publication number: 20130009177
    Abstract: An organic layer deposition apparatus, and a method of manufacturing an organic light-emitting display device using the organic layer deposition apparatus. The organic layer deposition apparatus includes: an electrostatic chuck that fixedly supports a substrate that is a deposition target; a deposition unit including a chamber maintained at a vacuum and an organic layer deposition assembly for depositing an organic layer on the substrate fixedly supported by the electrostatic chuck; and a first conveyer unit for moving the electrostatic chuck fixedly supporting the substrate into the deposition unit, wherein the first conveyer unit passes through inside the chamber, and the first conveyer unit includes a guide unit having a receiving member for supporting the electrostatic chuck to be movable in a direction.
    Type: Application
    Filed: June 8, 2012
    Publication date: January 10, 2013
    Inventors: Seok-Rak Chang, Myeng-Woo Nam, Hee-Cheol Kang, Jong-Heon Kim, Jong-Won Hong, Uno Chang
  • Patent number: 8343281
    Abstract: Provided are a source gas supply unit capable of supplying a constant amount of source gas to a deposition chamber to deposit a uniform layer, and a deposition apparatus and method using the same. The source gas supply unit includes a canister in which a source is stored, a heater heating the canister, a source gas supply pipe provided on one side of the canister, a measuring unit installed on the source gas supply pipe and measuring an amount of source gas passing through the source gas supply pipe, and a temperature controller connected to the heater and the measuring unit. The temperature controller controls the heater based on the amount of the source gas measured by the measuring unit.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: January 1, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Won Hong, Min-Jae Jeong, Heung-Yeol Na, Eu-Gene Kang, Seok-Rak Chang
  • Publication number: 20120103253
    Abstract: An organic layer deposition apparatus capable of reducing or minimizing shifting of a pattern, caused when a patterning slit sheet sags.
    Type: Application
    Filed: September 24, 2011
    Publication date: May 3, 2012
    Inventors: Hyun-Sook Park, Chang-Mog Jo, Yun-Mi Lee, Seok-Rak Chang
  • Publication number: 20120100282
    Abstract: An organic film deposition apparatus includes: a deposition source that discharges a deposition material; a deposition source nozzle unit located at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; a patterning slit sheet spaced apart from the deposition source nozzle unit and having a plurality of patterning slits arranged in a second direction perpendicular to the first direction; a first blocking member between the substrate and the deposition source and movable together with the substrate to be positioned to screen at least a part of the substrate; and a second blocking member between the first blocking member and the substrate and fixedly held relative to the deposition source, wherein the substrate is spaced apart from the organic film deposition apparatus and at least one of the substrate or the organic film deposition apparatus moves relative to the other.
    Type: Application
    Filed: January 27, 2011
    Publication date: April 26, 2012
    Inventors: Yun-Mi Lee, Hyun-Sook Park, Jong-Heon Kim, Seok-Rak Chang
  • Patent number: 8133636
    Abstract: A fuel cell stack includes a membrane electrode assembly including an anode electrode, a cathode electrode, and an electrolyte membrane positioned between the anode electrode and the cathode electrode; a separator including a channel for a flow of fuel and oxidant and closely adhered to the membrane electrode assembly; and a gasket with a two-layer structure stacked between the separator and the membrane electrode assembly.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: March 13, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yeong-chan Eun, Seong-jin An, Jun-ho Sauk, Gill-tae Roh, Seok-rak Chang
  • Publication number: 20120000986
    Abstract: A canister for a deposition apparatus and a deposition apparatus using the same, and more particularly, a canister for a deposition apparatus that can provide a uniform amount of source material contained in a reaction gas supplied into a deposition chamber and improve safety in the supply of the source material, and a deposition apparatus using the canister. The deposition apparatus includes a deposition chamber; a canister supplying a reaction gas into the deposition chamber; and a carrier gas supplier for supplying a carrier gas into the canister, in which the canister includes a main body, a heating unit heating the main body and a temperature measuring unit disposed under the main body.
    Type: Application
    Filed: January 19, 2011
    Publication date: January 5, 2012
    Applicant: Samsung Mobile Display Co., Ltd
    Inventors: Min-Jae JEONG, Ki-Yong Lee, Jong-Won Hong, Heung-Yeol Na, Eu-Gene Kang, Seok-Rak Chang, Jin-Wook Seo, Tae-Hoon Yang, Yun-Mo Chung, Byung-Soo Soo, Byoung-Keon Park, Dong-Hyun Lee, Kil-Won Lee, Won-Bong Baek, Jong-Ryuk Park, Bo-Kyung Choi, Ivan Maidanchuk, Jae-Wan Jung
  • Publication number: 20120000425
    Abstract: A substrate processing apparatus that simultaneously forms thin films on a plurality of substrates and performs heat treatment includes: a plurality of substrate holders, each including a substrate support that supports a substrate and a first gas pipe having one or a plurality of injection holes; a boat where the plurality of substrate holders are stacked and including a second gas pipe connected with the first gas pipe of each of the substrate holders; a process chamber providing a space in which the substrates stacked in the boat are processed; a conveying unit that carries the boat into/out of the process chamber; a first heating unit disposed outside the process chamber; and a gas supply unit including a third gas pipe connected with the second gas pipe and supplying a heated or cooled gas into the second gas pipe.
    Type: Application
    Filed: January 6, 2011
    Publication date: January 5, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Byoung-Keon Park, Ki-Yong Lee, Jin-Wook Seo, Min-Jae Jeong, Jong-Won Hong, Heung-Yeol Na, Tae-Hoon Yang, Yun-Mo Chung, Eu-Gene Kang, Seok-Rak Chang, Dong-Hyun Lee, Kil-Won Lee, Jong-Ryuk Park, Bo-Kyung Choi, Won-Bong Baek, Ivan Maidanchuk, Byung-Soo So, Jae-Wan Jung
  • Patent number: 8053132
    Abstract: A cathode end plate for a breathable fuel cell stack including a first plate including a plurality of first openings and a second plate contacting one side of the first plate and including a plurality of second openings exposing two or more first openings of the plurality of first openings.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: November 8, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Gill-Tae Roh, Yeong-Chan Eun, Jun-Ho Sauk, Seong-Jin An, Seok-Rak Chang
  • Patent number: 8048783
    Abstract: A method of forming a polycrystalline silicon layer and an atomic layer deposition apparatus used for the same. The method includes forming an amorphous silicon layer on a substrate, exposing the substrate having the amorphous silicon layer to a hydrophilic or hydrophobic gas atmosphere, placing a mask having at least one open and at least one closed portion over the amorphous silicon layer, irradiating UV light toward the amorphous silicon layer and the mask using a UV lamp, depositing a crystallization-inducing metal on the amorphous silicon layer, and annealing the substrate to crystallize the amorphous silicon layer into a polycrystalline silicon layer. This method and apparatus provide for controlling the seed position and grain size in the formation of a polycrystalline silicon layer.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 1, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Yun-Mo Chung, Ki-Yong Lee, Min-Jae Jeong, Jin-Wook Seo, Jong-Won Hong, Heung-Yeol Na, Eu-Gene Kang, Seok-Rak Chang, Tae-Hoon Yang, Ji-Su Ahn, Young-Dae Kim, Byoung-Keon Park, Kil-Won Lee, Dong-Hyun Lee, Sang-Yon Yoon, Jong-Ryuk Park, Bo-Kyung Choi, Maxim Lisachenko
  • Publication number: 20110263107
    Abstract: A method of forming a polycrystalline silicon layer and an atomic layer deposition apparatus used for the same. The method includes forming an amorphous silicon layer on a substrate, exposing the substrate having the amorphous silicon layer to a hydrophilic or hydrophobic gas atmosphere, placing a mask having at least one open and at least one closed portion over the amorphous silicon layer, irradiating UV light toward the amorphous silicon layer and the mask using a UV lamp, depositing a crystallization-inducing metal on the amorphous silicon layer, and annealing the substrate to crystallize the amorphous silicon layer into a polycrystalline silicon layer. This method and apparatus provide for controlling the seed position and grain size in the formation of a polycrystalline silicon layer.
    Type: Application
    Filed: July 7, 2011
    Publication date: October 27, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Yun-Mo CHUNG, Ki-Yong LEE, Min-Jae JEONG, Jin-Wook SEO, Jong-Won HONG, Heung-Yeol NA, Eu-Gene KANG, Seok-Rak CHANG, Tae-Hoon YANG, Ji-Su AHN, Young-Dae KIM, Byoung-Keon PARK, Kil-Won LEE, Dong-Hyun LEE, Sang-Yon YOON, Jong-Ryuk PARK, Bo-Kyung CHOI, Maxim LISACHENKO
  • Publication number: 20110244120
    Abstract: A thin film deposition apparatus that can be easily used to manufacture large-sized display devices on a mass scale and that improves manufacturing yield, and a method of manufacturing an organic light-emitting display device by using the thin film deposition apparatus.
    Type: Application
    Filed: February 22, 2011
    Publication date: October 6, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Yong Sup CHOI, Myeng-Woo Nam, Jong-Won Hong, Seok-Rak Chang, Eun-Sun Choi
  • Publication number: 20110220022
    Abstract: A thin film deposition apparatus includes: a deposition source that discharges a deposition material; a deposition source nozzle unit disposed at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; a patterning slit sheet disposed opposite to the deposition source nozzle unit and including a plurality of patterning slits arranged in the first direction; a position detection member that detects a relative position of the substrate to the patterning slit sheet; and an alignment control member that controls a relative position of the patterning slit sheet to the substrate by using the relative position of the substrate detected by the position detection member, wherein the thin film deposition apparatus and the substrate are separated from each other, and the thin film deposition apparatus and the substrate are moved relative to each other.
    Type: Application
    Filed: January 26, 2011
    Publication date: September 15, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Won HONG, Seok-Rak Chang, Chang-Mog Jo, Young-Mook Choi, Jae-Kwang Ryu
  • Publication number: 20110139612
    Abstract: A sputtering apparatus includes a process chamber having first and second regions, a metal target inside the process chamber, a target transfer unit inside the process chamber, the target transfer unit being configured to move the metal target between the first and second regions, a substrate holder in the second region of the process chamber, and a magnetic assembly in the first region of the process chamber, the magnetic assembly being interposed between the target transfer unit and a wall of the process chamber.
    Type: Application
    Filed: October 27, 2010
    Publication date: June 16, 2011
    Inventors: Heung-Yeol Na, Jong-Won Hong, Seok-Rak Chang, Ki-Yong Lee
  • Publication number: 20110120859
    Abstract: Provided is a sputtering apparatus which deposits a metal catalyst on an amorphous silicon layer at an extremely low concentration in order to crystallize amorphous silicon, and particularly minimizes non-uniformity of the metal catalyst caused by a pre-sputtering process without reducing process efficiency. This sputtering apparatus improves the uniformity of the metal catalyst deposited on the amorphous silicon layer at an extremely low concentration. The sputtering apparatus includes a process chamber having first and second regions, a metal target located inside the process chamber, a target transfer unit moving the metal target and having a first shield for controlling a traveling direction of a metal catalyst discharged from the metal target, and a substrate holder disposed in the second region to be capable of facing the metal target.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 26, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Tae-Hoon Yang, Ki-Yong Lee, Jin-Wook Seo, Byoung-Keon Park, Yun-Mo Chung, Dong-Hyun Lee, Kil-Won Lee, Jae-Wan Jung, Jong-Ryuk Park, Bo-Kyung Choi, Won-Bong Baek, Byung-Soo So, Jong-Won Hong, Min-Jae Jeong, Heung-Yeol Na, Ivan Maidanchuk, Eu-Gene Kang, Seok-Rak Chang
  • Publication number: 20110114963
    Abstract: A thin film transistor includes a substrate, a buffer layer on the substrate, a semiconductor layer including source/drain regions and a channel region on the buffer layer, a gate insulating layer corresponding to the channel region, a gate electrode corresponding to the channel region, and source/drain electrodes electrically connected to the semiconductor layer. A polysilicon layer of the channel region may include only a low angle grain boundary, and a high angle grain boundary may be disposed in a region of the semiconductor layer that is apart from the channel region.
    Type: Application
    Filed: August 27, 2010
    Publication date: May 19, 2011
    Inventors: Yong-Duck Son, Ki-Yong Lee, Joon-Hoo Choi, Min-Jae Jeong, Seung-Kyu Park, Kil-Won Lee, Jae-Wan Jung, Dong-Hyun Lee, Byung-Soo So, Hyun-Woo Koo, Ivan Maidanchuk, Jong-Won Hong, Heung-Yeol Na, Seok-Rak Chang
  • Publication number: 20110107970
    Abstract: A substrate processing apparatus includes a heating unit that heats a processing chamber that processes a plurality of substrates and that quickly cools the processing chamber after the processing. The heating unit includes a body having an intake port and an exhaust port, one or more heaters located inside the body, a cooler connected to the intake port of the body, an exhaust pump connected to the exhaust port of the body, and a controller controlling the cooler. The substrate processing apparatus includes a boat in which a plurality of substrates are stacked, a processing chamber providing a space in which the substrates are processed, a transfer unit carrying the boat into or out of the processing chamber, and the heating unit located outside the processing chamber.
    Type: Application
    Filed: August 17, 2010
    Publication date: May 12, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Won HONG, Min-Jae JEONG, Heung-Yeol NA, Eu-Gene KANG, Seok-Rak CHANG
  • Publication number: 20110100973
    Abstract: An apparatus for thermally processing a plurality of substrates including a process chamber into which a boat having a plurality of substrates stacked thereon is loaded, and a heater chamber separate from the process chamber and having a plurality of heaters to apply heat to the process chamber. Here, the heaters are installed to correspond to all sides of the plurality of substrates. Therefore, it is possible to minimize a temperature distribution in the process chamber and uniformly supply heat to the entire region of the plurality of substrates.
    Type: Application
    Filed: February 26, 2010
    Publication date: May 5, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Heung-Yeol NA, Min-Jae Jeong, Jong-Won Hong, Eu-Gene Kang, Seok-Rak Chang, Ki-Yong Lee, Jin-Wook Seo, Tae-Hoon Yang, Yun-Mo Chung, Byung-Soo So, Byoung-Keon Park, Dong-Hyun Lee, Kil-Won Lee, Won-Bong Baek, Jong-Ryuk Park, Bo-Kyung Choi, Ivan Maidanchuk, Jae-Wan Jung
  • Publication number: 20110083960
    Abstract: A sputtering apparatus that is capable of uniformly depositing an ultra-low concentration metal catalyst on a substrate having an amorphous silicon layer in order to crystallize the amorphous silicon layer. The sputtering apparatus includes a process chamber, a metal target located inside the process chamber, a substrate holder located opposite the metal target, and a vacuum pump connected with an exhaust pipe of the process chamber. An area of the metal target is more than 1.3 times an area of a substrate placed on the substrate holder.
    Type: Application
    Filed: October 12, 2010
    Publication date: April 14, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: TAE-HOON YANG, KI-YONG LEE, JIN-WOOK SEO, BYOUNG-KEON PARK, YUN-MO CHUNG, DONG-HYUN LEE, KIL-WON LEE, JAE-WAN JUNG, JONG-RYUK PARK, BO-KYUNG CHOI, WON-BONG BAEK, BYUNG-SOO SO, JONG-WON HONG, MIN-JAE JEONG, HEUNG-YEOL NA, IVAN MAIDANCHUK, EU-GENE KANG, SEOK-RAK CHANG
  • Publication number: 20110070360
    Abstract: Provided are a source gas supply unit capable of supplying a constant amount of source gas to a deposition chamber to deposit a uniform layer, and a deposition apparatus and method using the same. The source gas supply unit includes a canister in which a source is stored, a heater heating the canister, a source gas supply pipe provided on one side of the canister, a measuring unit installed on the source gas supply pipe and measuring an amount of source gas passing through the source gas supply pipe, and a temperature controller connected to the heater and the measuring unit. The temperature controller controls the heater based on the amount of the source gas measured by the measuring unit.
    Type: Application
    Filed: February 24, 2010
    Publication date: March 24, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Won Hong, Min-Jae Jeong, Heung-Yeol Na, Eu-Gene Kang, Seok-Rak Chang