Electrochemical treating method such as electroplating and electrochemical reaction device therefor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C25D-005/00
C25D-017/00
출원번호
US-0070516
(2001-07-30)
국제출원번호
PCT/JP01/06525
(2001-07-30)
국제공개번호
WO02/16673
(2002-02-28)
발명자
/ 주소
Yoshida, Hideo
Miyata, Seizo
Asai, Yoshihiro
Sone, Masato
Iwao, Fumiko
Asai, Hiroe
출원인 / 주소
Yoshida Hideo, Miyata Seizo, Asai Yoshihiro
대리인 / 주소
Jordan and Hamburg LLP
인용정보
피인용 횟수 :
4인용 특허 :
0
초록▼
A novel method of electrochemical treatment such as electroplating, etc. and an electrochemical reaction apparatus thereof which is high in reactability and able to be electrochemically reacted efficiently, which is small or zero in amount of generation of liquid waste such as electrolytic solution
A novel method of electrochemical treatment such as electroplating, etc. and an electrochemical reaction apparatus thereof which is high in reactability and able to be electrochemically reacted efficiently, which is small or zero in amount of generation of liquid waste such as electrolytic solution and cleaning liquid and therefore, amicable to the environment, and in which it is no more required to clean the electrode, etc. with cleaning liquid after reaction. Electrochemical reaction is executed in a reaction vessel ( 6 ) containing matter ( 5 ) which is in a supercritical or subcritical state and an electrolytic solution ( 1 ), and after reaction, the supercritical or subcritical matter ( 5 ) is shifted into a state of the matter ( 5 ) before being shifted into a critical state.
대표청구항▼
1. A method of electrochemical treatment comprising introducing an electrode, a substance which is in a subcritical state, and small amounts of electrolytic solution and, for emulsification purpose, surfactant into a reaction vessel such that said electrode is not in contact with said electrolytic s
1. A method of electrochemical treatment comprising introducing an electrode, a substance which is in a subcritical state, and small amounts of electrolytic solution and, for emulsification purpose, surfactant into a reaction vessel such that said electrode is not in contact with said electrolytic solution, thereafter shifting said substance into a supercritical state, and electrolyzing said electrolytic solution thereby to effect electrochemical reaction, and said electrolytic solution being in uniformly emulsified condition when said electrochemical reaction takes place. 2. A method of electrochemical treatment according to claim 1, wherein reservoir vessels communicable with said reaction vessel are disposed exterior to said reaction vessel, and used said substance, used said electrolytic solution and/or used cleaning solution are stored in said reservoir vessels. 3. A method of electrochemical treatment according to claim 2, wherein said used substance stored in said reservoir vessels is regenerated and recycled to said reaction vessel and/or said used electrolytic solution and/or used cleaning solution stored in said reservoir vessels is regenerated and recycled to other reservoir vessels. 4. A method of electrochemical treatment according to claim 1, further comprising a pretreatment process and wherein said electrochemical reaction and said pretreatment process are executed in one reaction vessel. 5. A method of electrochemical treatment comprising introducing an electrode, a fluid which is in a subcritical state, and small amounts of electrolytic solution and, for emulsification, surfactant into a reaction vessel such that said electrode is not in contact with said electrolytic solution, thereafter pressurizing said reaction vessel to a level equal to or higher than atmospheric pressure but not higher than supercritical pressure of said fluid, and electrolyzing said electrolytic solution thereby to effect electrochemical reaction, said fluid and said electrolytic solution being in uniformly emulsified condition when said electrochemical reaction takes place. 6. A method of electrochemical treatment according to claim 5, further comprising pressurizing said fluid before introducing said fluid into said reaction vessel. 7. A method of electrochemical treatment according to claim 5, wherein reservoir vessels conmmunicable with said reaction vessel are disposed exterior to said reaction vessel, and used said pressurized fluid, used said electrolytic solution and/or used cleaning solution are stored in said reservoir vessels. 8. A method of electrochemical treatment according to claim 5, wherein said used pressurized fluid stored in said reservoir vessels is regenerated and recycled to said reaction vessel and/or said used electrolytic solution and/or used cleaning solution stored in said reservoir vessels is regenerated and recycled to other reservoir vessels. 9. A method of electrochemical treatment according to claim 5, further comprising a pretreatment process and wherein said electrochemical reaction and said pretreatment process are executed in one reaction vessel. 10. An apparatus for electrochemical reaction, the apparatus comprising a reaction vessel and an electrode received in the reaction vessel, the reaction vessel being adapted to receive a substance which is in a subcritical state and small amounts of electrolytic solution and, for emulsification purpose, surfactant, said apparatus being configured so that said electrolytic solution is received in said reaction vessel without contacting said electrode, means for shifting said substance in said reaction vessel into a supercritical state, and means for electrolyzing said electrolytic solution when said substance and said electrolytic solution are in uniformly emulsified state so that electrochemical reaction takes place. 11. An apparatus for electrochemical reaction according to claim 10, further comprising reservoir vessels communicable with said reaction ves sel and disposed exterior to said reaction vessel, the reservoir vessels being adapted to receive used said substance, used said electrolytic solution and/or used cleaning solution. 12. An apparatus for electrochemical reaction of electroplating, according to claim 11, further comprising other reservoir vessels, means for regenerating said used substance which was stored in said reservoir vessels, means for recycling said regenerated substance to said reaction vessel, means for regenerating said used electrolytic solution and/or said used cleaning solution which was stored in said reservoir vessels and means for recycling said regenerated electrolytic solution and/or cleaning solution to said other reservoir vessels. 13. An apparatus for electrochemical reaction according to claim 10, further comprising means for conducting a pretreatment process and wherein said apparatus is adapted for carrying out said electrochemical reaction and said pretreatment process in said one and the same reaction vessel. 14. An apparatus for electrochemical reaction according to claim 13, further comprising at least a second reaction vessel, said reaction vessels being arranged is as to be capable of executing said electrochemical reaction and said pretreatment process as well as a post treatment process or an electrolyzing process of said electrolytic solution, and wherein said reaction vessels are arranged to allow preceding and succeeding treatment processes therein, pretreatment and post treatment processes therein, and sequential treatment processes therein reaction. 15. An apparatus for electrochemical reaction according to claim 14, further comprising means for transporting from said first reaction vessel to said second reaction vessel, after a prescribed treatment process is executed in said first reaction vessel said electrolytic solution, a cleaning solution or surfactant for a succeeding treatment process in said second reaction vessel. 16. An apparatus for electrochemical reaction comprising a reaction vessel, an electrode received in said reaction vessel, said reaction vessel being adapted to receive a substance which is in a subcritical state and small amounts of electrolytic solution and, for emulsification purpose, surfactant, for emulsification purpose, Without said electrolytic solution contacting said electrode, means for pressurizing said reaction vessel to a level equal to or higher than atmospheric pressure but not higher than critical pressure of said substance, and means for electrolyzing said electrolytic solution when said substance and said electrolytic solution and in uniformly emulsified state so that electrochemical reaction takes place. 17. An apparatus for electrochemical reaction according to claim 16, wherein the substance is a pressurized liquid and the apparatus further comprises means for introducing the pressurized liquid into said reaction vessel and means for pressurizing said reaction vessel to a level equal to or higher than atmospheric pressure but not higher than a supercritical pressure of said pressurized liquid. 18. An apparatus for electrochemical reaction according to claim 16, further comprising reservoir vessels communicable with said reaction vessel and disposed exterior to said reaction vessel, and reservoir vessels for receiving used said pressurized liquid, used said electrolytic solution or cleaning solution. 19. An apparatus for electrochemical reaction according to claim 16, further comprising other reservoir vessels, means for regenerating used said pressurized liquid stored in said reservoir vessels and recycling the regenerated liquid to said reaction vessel and means for regenerating used said electrolytic solution or cleaning solution stored in said reservoir vessels and recycling said regenerated solutions to said other reservoir vessels. 20. An apparatus for electrochemical reaction according to claim 16, further comprising means for carrying out preceding and succeeding treatment pr ocesses and wherein said reaction vessel is adapted for the carrying out therein of said preceding and succeeding processes as well as said electrochemical reaction. 21. An apparatus for electrochemical reaction according to claim 16, further comprising at least a second reaction vessel, said reaction vessels being adapted for executing said electrochemical reaction and preceding and succeeding treatment processes or an electrolyzing process of said electrolytic solution and preceding and succeeding treatment processes thereof, and said reaction vessels being adapted for executing said preceding and succeeding treatment processes sequentially. 22. An apparatus for electrochemical reaction according to claim 16, further comprising means for transporting from said first reaction vessel, after a prescribed treatment process is executed in said first reaction vessel, said electrolytic solution, cleaning solution or surfactant to said second reaction vessel, where a succeeding treatment process is to be carried out.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허를 인용한 특허 (4)
Nakano, Hiroshi; Itabashi, Takeyuki; Akahoshi, Haruo, Electric plating method, electric plating apparatus, program for plating, recording medium, and manufacturing method and manufacturing apparatus for semiconductor device.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.