公开(公告)号：US20200239771A1

公开(公告)日：2020-07-30

申请号：US16749193

申请日：2020-01-22

Applicant: OCI COMPANY LTD.

Inventor： Ho-Seong YOO ,  Myung-Hyun KIM ,  Jun-Eun LEE ,  Pyong-Hwa JANG

IPC: C09K13/06 ,  H01L21/465

Abstract: Disclosed is an etching solution for a silicon substrate. More specifically, an etching solution for a silicon substrate is disclosed in which a concentration of a silane compound (silicon) in the etching solution for the silicon substrate is adjusted to improve an etching selectivity of a silicon nitride film relative to a silicon oxide film during etching of the nitride film.

公开(公告)号：US10676222B2

公开(公告)日：2020-06-09

申请号：US15742100

申请日：2016-07-06

Applicant: OCI Company Ltd.

Inventor： Hyun Cheol Kim ,  Shin Kim

IPC: B65B9/067 ,  B65H23/04 ,  B65H23/00 ,  B65B59/00 ,  B65B49/04 ,  B65B9/22 ,  B65B41/16 ,  B65B57/04 ,  B65B9/06

Abstract: The present invention relates to a packing system including a transporting device, an erecting device, and a guiding device. The packing system is configured to reduce the number of packing operations and to simplify the packing process, thereby improving production efficiency, compared with a conventional system. The packing system is configured to minimize wrinkling of a packing material and to adjust position of ends of the packing material in a way that the packing material is always supplied to a predetermined position, thereby reducing a failure rate of a packed product. It is possible to pack various sizes of packing target objects using a single system.

公开(公告)号：US10483568B2

公开(公告)日：2019-11-19

申请号：US15666706

申请日：2017-08-02

Applicant: OCI Company Ltd.

Inventor： JaeMin Kim ,  MyungSup Um ,  HeeChang Ye

IPC: H01M8/00 ,  H01M8/04276 ,  H01M8/18 ,  H01M8/04186

Abstract: A module system of a redox flow battery is disclosed. The system includes a first redox flow battery module, through which first and second electrolytic solutions circulate, a second redox flow battery module, through which first and second electrolytic solutions circulate, first and second storage tanks storing the first electrolytic solutions of the first and second redox flow battery modules, a first main pipe connecting the first redox flow battery module fluidically to the first storage tank, and a first transfer pipe and a first equilibrium pipe which are configured to allow for fluid communication between the first electrolytic solutions of the first and second redox flow battery module. The first main pipe has a diameter greater than that of the first transfer pipe.

公开(公告)号：US10475646B2

公开(公告)日：2019-11-12

申请号：US15887069

申请日：2018-02-02

Applicant: OCI Company Ltd.

Inventor： Chang Ryol Kim ,  A Youn Cho ,  Ja Cheol Koo ,  Yong Chul Shin

IPC: B01D53/86 ,  G05B21/00 ,  C01B33/039 ,  B01J8/18 ,  C01B33/021 ,  C01B33/107 ,  H01L21/02 ,  C01B33/03 ,  C23C16/24 ,  C23C16/44 ,  C23C16/448 ,  C23C16/455

Abstract: The present invention relates to a process for producing of polycrystalline silicon, and the method includes (1) preparing a silicon-containing gas; (2) storing the silicon-containing gas in a storage tank; (3) depositing polycrystalline silicon by injecting the silicon-containing gas stored in the storage tank to a CVD reactor; (4) treating an off-gas emitted in the depositing step; and (5) injecting the gas treated in the treating step to the storage tank.

公开(公告)号：US20190161621A1

公开(公告)日：2019-05-30

申请号：US16203952

申请日：2018-11-29

Applicant: OCI COMPANY LTD.

Inventor： Jae-Seok LEE

IPC: C09C1/56 ,  C09C1/50

Abstract: The present invention relates to a method for oxidizing a carbon black which can prevent or alleviate change in the surface oxidation degree of the carbon black by a residual ozone after surface oxidation reforming, and a method for preparing the carbon black by comprising it in a single continuous process.

公开(公告)号：US20190010398A1

公开(公告)日：2019-01-10

申请号：US16026169

申请日：2018-07-03

Applicant: OCI COMPANY LTD.

Inventor： HoSeong YOO ,  JunEun LEE ,  PyongHwa JANG ,  YongIl KIM ,  Jin PARK

IPC: C09K13/06 ,  H01L21/311

Abstract: The present invention relates to an etching composition, an etching method, and a method of preparing a semiconductor device using the same, and more particularly, to an etching composition comprising a compound capable of selectively removing a nitride film with a high selectivity while minimizing an etch rate of the oxide film, and a method of preparing a semiconductor device comprising an etching process using the etching composition.

公开(公告)号：US10167425B2

公开(公告)日：2019-01-01

申请号：US15584208

申请日：2017-05-02

Applicant: OCI COMPANY LTD.

Inventor： Hoseong Yoo ,  Seunghyun Han ,  Wook Chang ,  Yongil Kim

IPC: C09K13/08 ,  C07C69/34 ,  C07C69/02 ,  H01L21/02 ,  C08K5/54 ,  C01B7/19

Abstract: The present disclosure relates to an etching solution capable of suppressing particle appearance including a first silane compound in which three or more hydrophilic functional groups are independently bonded to a silicon atom and a second silane compound in which one or two hydrophilic functional groups are independently bonded to a silicon atom.

公开(公告)号：US20180226249A1

公开(公告)日：2018-08-09

申请号：US15887069

申请日：2018-02-02

Applicant: OCI Company Ltd.

Inventor： Chang Ryol Kim ,  A Youn Cho ,  Ja Cheol Koo ,  Yong Chul Shin

IPC: H01L21/02

Abstract: The present invention relates to a process for producing of polycrystalline silicon, and the method includes (1) preparing a silicon-containing gas; (2) storing the silicon-containing gas in a storage tank; (3) depositing polycrystalline silicon by injecting the silicon-containing gas stored in the storage tank to a CVD reactor; (4) treating an off-gas emitted in the depositing step; and (5) injecting the gas treated in the treating step to the storage tank.

公开(公告)号：US09966626B2

公开(公告)日：2018-05-08

申请号：US15119908

申请日：2015-02-16

Applicant: OCI COMPANY LTD.

Inventor： Ji-Eun Hong ,  Seung-Yoen Lee ,  Soo-Whan Kim ,  Hee-Chang Ye ,  Byung-Chul Kim

IPC: H01M8/18 ,  H01M8/20 ,  H01M8/02

CPC classification number: H01M8/188 ,  H01M8/02 ,  H01M8/20 ,  Y02E60/528

Abstract: The present invention relates to a redox flow battery, and more particularly, to a redox flow battery which is charged and discharged by supplying a positive electrolyte and a negative electrolyte to a battery cell using an active material containing vanadium and a cation exchange membrane, in which the positive electrolyte and the negative electrolyte contain vanadium ions as active ions, the difference in volume between the positive electrolyte and the negative electrolyte is maintained at 10% or less, and the total concentration of anions in the negative electrolyte is higher than the total concentration of anions in the positive electrolyte, whereby the transfer of water in the battery is controlled and a change in the volume of the electrolytes is minimized.

公开(公告)号：US09845241B2

公开(公告)日：2017-12-19

申请号：US14958854

申请日：2015-12-03

Applicant: OCI COMPANY LTD.

Inventor： Seung-Hyun Han ,  Wook Chang ,  Yeon-Hee Lee

IPC: C01B25/047

CPC classification number: C01B25/047

Abstract: The present invention relates to a method of purifying yellow phosphorus, and more particularly, to a method of effectively removing impurities from yellow phosphorus used as raw materials of a phosphoric acid to increase purity of the phosphoric acid, the method including: removing impurities from the phosphoric acid by adding an oxidizing agent to the yellow phosphorus, followed by stirring; and adding a solution including an additive having a specific functional group in a chemical structure to the yellow phosphorus from which the impurities are removed, followed by stirring.