EP 2570514 B1 20170614 - Method of removing impurities from plating liquid
Title (en)
Method of removing impurities from plating liquid
Title (de)
Verfahren zum Entfernen von Verunreinigungen aus einer Plattierflüssigkeit
Title (fr)
Procédé d'élimination des impuretés d'un liquide de placage
Publication
Application
Priority
JP 2011200596 A 20110914
Abstract (en)
[origin: EP2570514A1] Impurities are removed from tin plating liquids by adding additives containing aromatic organic sulfonic acids or salts thereof to the tin plating liquids containing nonionic surface active agents and thiourea or thiourea compounds and producing a precipitate by cooling.
IPC 8 full level
C23C 18/31 (2006.01)
CPC (source: EP KR)
C23C 18/31 (2013.01 - EP); C25D 21/18 (2013.01 - KR)
Citation (examination)
- EP 2471977 A2 20120704 - ROHM & HAAS ELECT MAT [US]
- EP 2481834 A1 20120801 - ROHM & HAAS ELECT MAT [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2570514 A1 20130320; EP 2570514 B1 20170614; CN 102994985 A 20130327; CN 102994985 B 20150617; JP 2013060638 A 20130404; JP 5937320 B2 20160622; KR 101994247 B1 20190628; KR 20130029358 A 20130322; TW 201317388 A 20130501; TW I471456 B 20150201
DOCDB simple family (application)
EP 12184351 A 20120914; CN 201210441982 A 20120914; JP 2011200596 A 20110914; KR 20120102350 A 20120914; TW 101133632 A 20120914