研究了基础溶液(0.3mol/LCuSO4+1.94mol/LH2SO4),以及添加60mg/LCl-,300mg/LOP21,30mg/LPEG6000,10mg/L2噻唑啉基二硫丙烷磺酸钠(代号TDY,自合成添加剂)后体系的阻抗行为.结果表明:1)Cl-在铜沉积中有增大阴极极化的作用.2)铜离子的放电为分步反应,即Cu2+→Cu+;Cu+→Cu(吸附)→Cu(晶格),在含有Cl-离子和不含Cl-的溶液中,Cu2+离子以不同的络合离子形式放电.3)Cu沉积反应的阻抗行为存在弥散效应.
The impedance characteristics of elementary solution (0.3 mol/L CuSO_4+1.94 mol/L H_2SO_4) and that with the addition of 60 mg/L Cl~-, 300 mg/L OP_21, 30 mg/L PEG, 10 mg/L 2thiazolinyldithiopropane sulfate(self-synthesized additive) are investigated and interpreted in terms of equivalent circuit. The results indicated: (1) Cl~- ion can increase cathodic polarization. (2) A twostep reaction mechanism corresponds to Cu~2+ reduction, that is: Cu~2+→Cu~+, Cu~+→Cu(adsorption)→Cu(lattice), Cu~2+ react in different forms of complex ion in sulfuric acidcupric sulfate solution with or without Cl~- ion. (3) cupric redution impedance shows dispersion effect in the solution that contains Cl~- ion.
邓文.印制电路板酸性镀铜的研究.硕士学位论文,天津:天津大学研究生院,1996.42宋光铃,曹楚南,林海潮.电化学控制条件下不可逆电极过程交流阻抗的统一换算电路和电学参数解析.中国腐蚀与防护学报,1994,14(2):113~1223CaoChunan.OntheimpedanceplanedisplaysforireversibleelectrodereactionsbasedonthestabilityconditionsofthesteadystateΠ.Twostatevariablesbesideselectrodepotential.ElectrochimicaActa,1990,35(5):837~8444ReidJD,DavidAP.ImpedancebehaviorofasulfuricAcidcupricSulfate/Coppercathodeinterface.J.Electrochem.Soc.:ElectrochemicalScienceandTechnology,1987,134(6):1389~13945费锡明,春山志郎.铜电析のインピ—ダンスに及ぼす有机添加剂の影响.DENKIKAGAKU,1985,53(2):129~1346周绍民,张瀛洲,姚士冰等.某些光亮镀铜添加剂的作用机理.厦门大学学报(自然科学版),1980,(1):54~707张瀛洲,方加福,周绍民.酸性溶液中2四氢噻唑硫酮等添加剂对铜沉积过程的影响.厦门大学学报(自然科学版),1980,20:63~738许家园,杨防祖,谢兆雄,周绍民.酸性镀铜液中Cl-离子的作用机理研究.厦门大学学报(自然科学版),1994,33(5):647~6519BoukampBA.Anonlinearleastsquaresfitprocedureforanalysisofimmitancedataofelectrochemicalsystems.SolidStateIonica,1986,(20):31~4410田昭武.电化学研究方法.北京:科学出版社,1984:283~286