Title:
再生利用可能なエッチング溶液
Document Type and Number:
Japanese Patent JP2009516071
Kind Code:
A
Abstract:
The invention relates to an aqueous etching solution which is recyclable by reducing a copper concentration during operation, is used for copper etching, in particular for printed circuits and for producing copper articles and which generally comprises water, ammonium, copper carbonate and ammonium carbonate. The inventive etching solution also comprises bromoacetylbiphenyland the derivatives thereof in the form of an additional catalyst.
Inventors:
Nahidi Doridi Karim
Application Number:
JP2008539995A
Publication Date:
April 16, 2009
Filing Date:
November 09, 2006
Export Citation:
Assignee:
Eve Recycling S.A.L.El
International Classes:
C23F1/34; C23F1/46; H05K3/06
Attorney, Agent or Firm:
Nobuyuki Matsubara
Kiyoji Muraki
Hashimoto Chikako
Sayaka Matsushima
High Iku child
Kazuhide Sekiguchi
Mikako Tsukada
Kiyoji Muraki
Hashimoto Chikako
Sayaka Matsushima
High Iku child
Kazuhide Sekiguchi
Mikako Tsukada