SURFACE TREATMENT COMPOSITION AND METHOD FOR REMOVING SI COMPONENT AND REDUCED METAL SALT PRODUCED ON THE ALUMINUM DICAST MATERIAL IN ETCHING PROCESS

Details for Australian Patent Application No. 2002321845 (hide)

Owner CHEON YOUNG CHEMICAL CO., LTD.

Inventors LEE, Eul-Kyu

Pub. Number AU-A-2002321845

PCT Number PCT/KR02/01398

PCT Pub. Number WO2003/010271

Priority 2001-44780 25.07.01 KR; 2002-7084 07.02.02 KR

Filing date 25 July 2002

Wipo publication date 17 February 2003

International Classifications

C11D 007/18 Compositions of detergents based essentially on non-surface-active compounds

C11D 007/04 Compositions of detergents based essentially on non-surface-active compounds

C11D 007/26 Compositions of detergents based essentially on non-surface-active compounds

C23G 001/12 Cleaning or pickling metallic material with solutions or molten salts

H01L 021/306 Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof

Event Publications

16 January 2003 Complete Application Filed

  Priority application(s): 2001-44780 25.07.01 KR; 2002-7084 07.02.02 KR

29 May 2003 Application Open to Public Inspection

  Published as AU-A-2002321845

8 April 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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