等温时效对SAC305/Ni-P与SACBN/Ni-P界面的影响

杜隆纯; 卫国强; 彭欣强; 王磊

doi:10.15980/j.tzzz.2013.09.029

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等温时效对SAC305/Ni-P与SACBN/Ni-P界面的影响
Effect of Isothermal Aging on Interfacial Reactions of SAC305/Ni-P and SACBN/Ni-P
2013年33卷第9期页码：881-884
纸质出版日期： 2013 ，
DOI： 10.15980/j.tzzz.2013.09.029

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[1]杜隆纯,卫国强,彭欣强,王磊.等温时效对SAC305/Ni-P与SACBN/Ni-P界面的影响[J].特种铸造及有色合金,2013,33(09):881-884.

Du Longchun, Wei Guoqiang, Peng Xinqiang, et al. Effect of Isothermal Aging on Interfacial Reactions of SAC305/Ni-P and SACBN/Ni-P[J]. Special Casting & Nonferrous Alloys, 2013,33(9):881-884.
[1]杜隆纯,卫国强,彭欣强,王磊.等温时效对SAC305/Ni-P与SACBN/Ni-P界面的影响[J].特种铸造及有色合金,2013,33(09):881-884. DOI： 10.15980/j.tzzz.2013.09.029.

Du Longchun, Wei Guoqiang, Peng Xinqiang, et al. Effect of Isothermal Aging on Interfacial Reactions of SAC305/Ni-P and SACBN/Ni-P[J]. Special Casting & Nonferrous Alloys, 2013,33(9):881-884. DOI： 10.15980/j.tzzz.2013.09.029.

摘要

研究了Sn-3Ag-0.5Cu（SAC305）/Ni-P与Sn-0.8Ag-0.5Cu-2.0Bi-0.05Ni（SACBN）/Ni-P在403、433、463K温度下时效100、400、700、1 000h的界面IMC变化。结果表明

时效前后SAC305/Ni-P与SACBN/Ni-P的界面IMC都是（Ni

Cu）3Sn4与（Cu

Ni）6Sn5

且（Ni

Cu）3Sn4层在（Cu

Ni）6Sn5与Ni-P层之间。随着时效时间的增加

SAC305/Ni-P与SACBN/Ni-P的界面IMC厚度逐渐增加;随着时效温度的增加

两种钎料的界面IMC厚度也逐渐增加。时效后SACBN/Ni-P焊点界面IMC的生长速率略高于SAC305/Ni-P的界面IMC生长速率

且两种钎料界面IMC生长厚度与时效时间t1/2成线性关系

SAC305/Ni-P和SACBN/Ni-P界面IMC的生长激活能分别是65.18和58.36kJ/mol。

Abstract

Interfacial reactions of SAC305/Ni-P and SACBN/Ni-P were investigated at 403

433

463K for 100

400

700

1000hours.The results show that（Cu

Ni） 6Sn5 and（Ni

Cu）3Sn4 intermetallic compound layer are generated at the interface between the two solders and electroless Ni-P after isothermal aging;and the（Ni

Cu）3Sn4 appeares between the（Cu

Ni）6Sn5 layer and Ni-P layer.Meanwhile

with the increase of aging time or aging temperature

thickness of the IMC layer is increased.The growth rate o f the intermetallic layers of the SACBN/Ni-P is a slightly hgiher than that of the SAC305/Ni-P during aging

and the growth rate of two solders’ IMC layer follows a liner relation with square root of aging time.The growth activation energy of IMC of SAC305/Ni-P and the SACBN/Ni-P is 65.18kJ/ mol and 58.36kJ/mol

respectively.